| Apalachicola Regional (AAF) | Apalachicola | FL | Roy Otten Memorial Airfield to Apalachicola Regional |
| Abilene Regional (ABI) | Abilene | TX | Roy Otten Memorial Airfield to Abilene Regional |
| Albuquerque/Sunport International (ABQ) | Albuquerque | NM | Roy Otten Memorial Airfield to Albuquerque/Sunport International |
| Aberdeen Regional (ABR) | Aberdeen | SD | Roy Otten Memorial Airfield to Aberdeen Regional |
| Southwest Georgia Regional (ABY) | Albany | GA | Roy Otten Memorial Airfield to Southwest Georgia Regional |
| Antrim County (ACB) | Bellaire | MI | Roy Otten Memorial Airfield to Antrim County |
| Ciudad Acuna International (ACN) | Ciudad Acuna | Coa | Roy Otten Memorial Airfield to Ciudad Acuna International |
| Waco Regional (ACT) | Waco | TX | Roy Otten Memorial Airfield to Waco Regional |
| Lenawee County (ADG) | Adrian | MI | Roy Otten Memorial Airfield to Lenawee County |
| Ardmore Municipal (ADM) | Ardmore | OK | Roy Otten Memorial Airfield to Ardmore Municipal |
| Addison/Dallas (ADS) | Dallas | TX | Roy Otten Memorial Airfield to Addison/Dallas |
| Ada Municipal (ADT) | Ada | OK | Roy Otten Memorial Airfield to Ada Municipal |
| Albert Lea Municipal (AEL) | Albert Lea | MN | Roy Otten Memorial Airfield to Albert Lea Municipal |
| Alexandria International (AEX) | Alexandria | LA | Roy Otten Memorial Airfield to Alexandria International |
| Fort Worth Alliance (AFW) | Fort Worth | TX | Roy Otten Memorial Airfield to Fort Worth Alliance |
| Allegheny County (AGC) | Pittsburgh | PA | Roy Otten Memorial Airfield to Allegheny County |
| Magnolia Municipal (AGO) | Magnolia | AR | Roy Otten Memorial Airfield to Magnolia Municipal |
| Augusta Regional/Bush Field (AGS) | Augusta | GA | Roy Otten Memorial Airfield to Augusta Regional/Bush Field |
| Ardmore Downtown Executive (AHD) | Ardmore | OK | Roy Otten Memorial Airfield to Ardmore Downtown Executive |
| Arapahoe Municipal (AHF) | Arapahoe | NE | Roy Otten Memorial Airfield to Arapahoe Municipal |
| Amery Municipal (AHH) | Amery | WI | Roy Otten Memorial Airfield to Amery Municipal |
| Athens/Ben Epps (AHN) | Athens | GA | Roy Otten Memorial Airfield to Athens/Ben Epps |
| Alliance Municipal (AIA) | Alliance | NE | Roy Otten Memorial Airfield to Alliance Municipal |
| Anderson Municipal-Darlington Field (AID) | Anderson | IN | Roy Otten Memorial Airfield to Anderson Municipal-Darlington Field |
| Aiken Regional (AIK) | Aiken | SC | Roy Otten Memorial Airfield to Aiken Regional |
| Atlantic Municipal (AIO) | Atlantic | IA | Roy Otten Memorial Airfield to Atlantic Municipal |
| George Downer (AIV) | Aliceville | AL | Roy Otten Memorial Airfield to George Downer |
| Akron Fulton International (AKC) | Akron | OH | Roy Otten Memorial Airfield to Akron Fulton International |
| Colorado Plains Regional (AKO) | Akron | CO | Roy Otten Memorial Airfield to Colorado Plains Regional |
| Alice International (ALI) | Alice | TX | Roy Otten Memorial Airfield to Alice International |
| St Louis Regional (ALN) | Alton | IL | Roy Otten Memorial Airfield to St Louis Regional |
| Waterloo Regional (ALO) | Waterloo | IA | Roy Otten Memorial Airfield to Waterloo Regional |
| San Luis Valley Regional/Bergman Field (ALS) | Alamosa | CO | Roy Otten Memorial Airfield to San Luis Valley Regional/Bergman Field |
| Thomas C Russell Field (ALX) | Alexander City | AL | Roy Otten Memorial Airfield to Thomas C Russell Field |
| Rick Husband Amarillo International (AMA) | Amarillo | TX | Roy Otten Memorial Airfield to Rick Husband Amarillo International |
| Gratiot Community (AMN) | Alma | MI | Roy Otten Memorial Airfield to Gratiot Community |
| Ames Municipal (AMW) | Ames | IA | Roy Otten Memorial Airfield to Ames Municipal |
| Anniston Regional (ANB) | Anniston | AL | Roy Otten Memorial Airfield to Anniston Regional |
| Anderson Regional (AND) | Anderson | SC | Roy Otten Memorial Airfield to Anderson Regional |
| Tri-State Steuben County (ANQ) | Angola | IN | Roy Otten Memorial Airfield to Tri-State Steuben County |
| Ainsworth Regional (ANW) | Ainsworth | NE | Roy Otten Memorial Airfield to Ainsworth Regional |
| Anthony Municipal (ANY) | Anthony | KS | Roy Otten Memorial Airfield to Anthony Municipal |
| Lima Allen County (AOH) | Lima | OH | Roy Otten Memorial Airfield to Lima Allen County |
| Altoona/Blair County (AOO) | Altoona | PA | Roy Otten Memorial Airfield to Altoona/Blair County |
| Centennial (APA) | Denver | CO | Roy Otten Memorial Airfield to Centennial |
| Alpena County Regional (APN) | Alpena | MI | Roy Otten Memorial Airfield to Alpena County Regional |
| Marion County-Brown Field (APT) | Jasper | TN | Roy Otten Memorial Airfield to Marion County-Brown Field |
| New Iberia/Acadiana Regional (ARA) | New Iberia | LA | Roy Otten Memorial Airfield to New Iberia/Acadiana Regional |
| Ann Arbor Municipal (ARB) | Ann Arbor | MI | Roy Otten Memorial Airfield to Ann Arbor Municipal |
| Walnut Ridge Regional (ARG) | Walnut Ridge | AR | Roy Otten Memorial Airfield to Walnut Ridge Regional |
| Lakeland/Noble F. Lee Memorial Field (ARV) | Minocqua | WI | Roy Otten Memorial Airfield to Lakeland/Noble F. Lee Memorial Field |
| Harrison County (ASL) | Marshall | TX | Roy Otten Memorial Airfield to Harrison County |
| Talladega Municipal (ASN) | Talladega | AL | Roy Otten Memorial Airfield to Talladega Municipal |
| John F Kennedy Memorial (ASX) | Ashland | WI | Roy Otten Memorial Airfield to John F Kennedy Memorial |
| Ashley Municipal (ASY) | Ashley | ND | Roy Otten Memorial Airfield to Ashley Municipal |
| Antlers Municipal (ATE) | Antlers | OK | Roy Otten Memorial Airfield to Antlers Municipal |
| Hartsfield Jackson Atlanta International (ATL) | Atlanta | GA | Roy Otten Memorial Airfield to Hartsfield Jackson Atlanta International |
| Gordon K Bush Ohio University (ATO) | Athens/Albany | OH | Roy Otten Memorial Airfield to Gordon K Bush Ohio University |
| Artesia Municipal (ATS) | Artesia | NM | Roy Otten Memorial Airfield to Artesia Municipal |
| Appleton International (ATW) | Appleton | WI | Roy Otten Memorial Airfield to Appleton International |
| Watertown Regional (ATY) | Watertown | SD | Roy Otten Memorial Airfield to Watertown Regional |
| Austin Municipal (AUM) | Austin | MN | Roy Otten Memorial Airfield to Austin Municipal |
| Auburn University Regional (AUO) | Auburn | AL | Roy Otten Memorial Airfield to Auburn University Regional |
| Austin Bergstrom International (AUS) | Austin | TX | Roy Otten Memorial Airfield to Austin Bergstrom International |
| Wausau Downtown (AUW) | Wausau | WI | Roy Otten Memorial Airfield to Wausau Downtown |
| Chicago/Aurora Municipal (AUZ) | Chicago | IL | Roy Otten Memorial Airfield to Chicago/Aurora Municipal |
| Asheville Regional (AVL) | Asheville | NC | Roy Otten Memorial Airfield to Asheville Regional |
| West Memphis Municipal (AWM) | West Memphis | AR | Roy Otten Memorial Airfield to West Memphis Municipal |
| Algona Municipal (AXG) | Algona | IA | Roy Otten Memorial Airfield to Algona Municipal |
| Chandler Field (AXN) | Alexandria | MN | Roy Otten Memorial Airfield to Chandler Field |
| Altus/Quartz Mountain Regional (AXS) | Altus | OK | Roy Otten Memorial Airfield to Altus/Quartz Mountain Regional |
| Auglaize County Neil Armstrong (AXV) | Wapakoneta | OH | Roy Otten Memorial Airfield to Auglaize County Neil Armstrong |
| Angel Fire (Colfax County) (AXX) | Angel Fire | NM | Roy Otten Memorial Airfield to Angel Fire (Colfax County) |
| Waycross-Ware County (AYS) | Waycross | GA | Roy Otten Memorial Airfield to Waycross-Ware County |
| Kalamazoo/Battle Creek International (AZO) | Kalamazoo | MI | Roy Otten Memorial Airfield to Kalamazoo/Battle Creek International |
| Benson Municipal (BBB) | Benson | MN | Roy Otten Memorial Airfield to Benson Municipal |
| Bay City Regional (BBC) | Bay City | TX | Roy Otten Memorial Airfield to Bay City Regional |
| Curtis Field (BBD) | Brady | TX | Roy Otten Memorial Airfield to Curtis Field |
| Broken Bow Municipal/Keith Glaze Field (BBW) | Broken Bow | NE | Roy Otten Memorial Airfield to Broken Bow Municipal/Keith Glaze Field |
| Virginia Tech Montgomery Executive (BCB) | Blacksburg | VA | Roy Otten Memorial Airfield to Virginia Tech Montgomery Executive |
| Baudette International (BDE) | Baudette | MN | Roy Otten Memorial Airfield to Baudette International |
| Beech Factory (BEC) | Wichita | KS | Roy Otten Memorial Airfield to Beech Factory |
| Southwest Michigan Regional (BEH) | Benton Harbor | MI | Roy Otten Memorial Airfield to Southwest Michigan Regional |
| Bradford Regional (BFD) | Bradford | PA | Roy Otten Memorial Airfield to Bradford Regional |
| Western Nebraska Regional/William B Heilig Field (BFF) | Scottsbluff | NE | Roy Otten Memorial Airfield to Western Nebraska Regional/William B Heilig Field |
| Mobile Downtown (BFM) | Mobile | AL | Roy Otten Memorial Airfield to Mobile Downtown |
| Beaver County (BFP) | Beaver Falls | PA | Roy Otten Memorial Airfield to Beaver County |
| Virgil I Grissom Municipal (BFR) | Bedford | IN | Roy Otten Memorial Airfield to Virgil I Grissom Municipal |
| Beaufort County (BFT) | Beaufort | SC | Roy Otten Memorial Airfield to Beaufort County |
| Hutchinson County (BGD) | Borger | TX | Roy Otten Memorial Airfield to Hutchinson County |
| Decatur County Industrial Air Park (BGE) | Bainbridge | GA | Roy Otten Memorial Airfield to Decatur County Industrial Air Park |
| Birmingham-Shuttlesworth International (BHM) | Birmingham | AL | Roy Otten Memorial Airfield to Birmingham-Shuttlesworth International |
| Beatrice Municipal (BIE) | Beatrice | NE | Roy Otten Memorial Airfield to Beatrice Municipal |
| Bismarck Municipal (BIS) | Bismarck | ND | Roy Otten Memorial Airfield to Bismarck Municipal |
| Rocky Mountain Metropolitan/Jeffco (BJC) | Denver | CO | Roy Otten Memorial Airfield to Rocky Mountain Metropolitan/Jeffco |
| Bemidji Regional (BJI) | Bemidji | MN | Roy Otten Memorial Airfield to Bemidji Regional |
| Wayne County (BJJ) | Wooster | OH | Roy Otten Memorial Airfield to Wayne County |
| Stephens County (BKD) | Breckenridge | TX | Roy Otten Memorial Airfield to Stephens County |
| Branson (BKG) | Branson | MO | Roy Otten Memorial Airfield to Branson |
| Burke Lakefront (BKL) | Cleveland | OH | Roy Otten Memorial Airfield to Burke Lakefront |
| Raleigh County Memorial (BKW) | Beckley | WV | Roy Otten Memorial Airfield to Raleigh County Memorial |
| Brookings Regional (BKX) | Brookings | SD | Roy Otten Memorial Airfield to Brookings Regional |
| Mercer County (BLF) | Bluefield | WV | Roy Otten Memorial Airfield to Mercer County |
| MidAmerica St Louis Scott AFB (BLV) | Belleville | IL | Roy Otten Memorial Airfield to MidAmerica St Louis Scott AFB |
| Monroe County (BMG) | Bloomington | IN | Roy Otten Memorial Airfield to Monroe County |
| Central Illinois Regional at Bloomington Normal (BMI) | Bloomington | IL | Roy Otten Memorial Airfield to Central Illinois Regional at Bloomington Normal |
| Beaumont Municipal (BMT) | Beaumont | TX | Roy Otten Memorial Airfield to Beaumont Municipal |
| Nashville International (BNA) | Nashville | TN | Roy Otten Memorial Airfield to Nashville International |
| Barnwell Regional (BNL) | Barnwell | SC | Roy Otten Memorial Airfield to Barnwell Regional |
| Boone Municipal (BNW) | Boone | IA | Roy Otten Memorial Airfield to Boone Municipal |
| Jack Brooks Regional (BPT) | Beaumont/Port Arthur | TX | Roy Otten Memorial Airfield to Jack Brooks Regional |
| Brainerd Lakes Regional (BRD) | Brainerd | MN | Roy Otten Memorial Airfield to Brainerd Lakes Regional |
| Southeast Iowa Regional (BRL) | Burlington | IA | Roy Otten Memorial Airfield to Southeast Iowa Regional |
| Samuels Field (BRY) | Bardstown | KY | Roy Otten Memorial Airfield to Samuels Field |
| Battle Creek Executive (BTL) | Battle Creek | MI | Roy Otten Memorial Airfield to Battle Creek Executive |
| Marlboro County Jetport - H.E. Avent Field (BTN) | Bennettsville | SC | Roy Otten Memorial Airfield to Marlboro County Jetport - H.E. Avent Field |
| Pittsburgh/Butler Regional Airport (BTP) | Butler | PA | Roy Otten Memorial Airfield to Pittsburgh/Butler Regional Airport |
| Baton Rouge Metro Ryan Field (BTR) | Baton Rouge | LA | Roy Otten Memorial Airfield to Baton Rouge Metro Ryan Field |
| Cram Field (BUB) | Burwell | NE | Roy Otten Memorial Airfield to Cram Field |
| Buffalo Niagara International (BUF) | Buffalo | NY | Roy Otten Memorial Airfield to Buffalo Niagara International |
| Bartlesville Municipal (BVO) | Bartlesville | OK | Roy Otten Memorial Airfield to Bartlesville Municipal |
| Batesville Regional (BVX) | Batesville | AR | Roy Otten Memorial Airfield to Batesville Regional |
| Brownwood Regional (BWD) | Brownwood | TX | Roy Otten Memorial Airfield to Brownwood Regional |
| Bowling Green Warren County Regional (BWG) | Bowling Green | KY | Roy Otten Memorial Airfield to Bowling Green Warren County Regional |
| Bowman Municipal (BWM) | Bowman | ND | Roy Otten Memorial Airfield to Bowman Municipal |
| George R Carr Memorial Airfield (BXA) | Bogalusa | LA | Roy Otten Memorial Airfield to George R Carr Memorial Airfield |
| Arkansas International (BYH) | Blytheville | AR | Roy Otten Memorial Airfield to Arkansas International |
| Wexford County (CAD) | Cadillac | MI | Roy Otten Memorial Airfield to Wexford County |
| Columbia Metropolitan (CAE) | Columbia | SC | Roy Otten Memorial Airfield to Columbia Metropolitan |
| Akron/Canton Regional (CAK) | Akron | OH | Roy Otten Memorial Airfield to Akron/Canton Regional |
| Clayton Municipal Airpark (CAO) | Clayton | NM | Roy Otten Memorial Airfield to Clayton Municipal Airpark |
| Greater Cumberland Regional (CBE) | Cumberland | MD | Roy Otten Memorial Airfield to Greater Cumberland Regional |
| Council Bluffs Municipal (CBF) | Council Bluffs | IA | Roy Otten Memorial Airfield to Council Bluffs Municipal |
| Shalz Field (CBK) | Colby | KS | Roy Otten Memorial Airfield to Shalz Field |
| Clinton Municipal (CCA) | Clinton | AR | Roy Otten Memorial Airfield to Clinton Municipal |
| Crane County (CCG) | Crane | TX | Roy Otten Memorial Airfield to Crane County |
| Northeast Iowa Regional (CCY) | Charles City | IA | Roy Otten Memorial Airfield to Northeast Iowa Regional |
| Harrell Field (CDH) | Camden | AR | Roy Otten Memorial Airfield to Harrell Field |
| Woodward Field (CDN) | Camden | SC | Roy Otten Memorial Airfield to Woodward Field |
| Chadron Municipal (CDR) | Chadron | NE | Roy Otten Memorial Airfield to Chadron Municipal |
| Childress Municipal (CDS) | Childress | TX | Roy Otten Memorial Airfield to Childress Municipal |
| Cessna Aircraft Field (CEA) | Wichita | KS | Roy Otten Memorial Airfield to Cessna Aircraft Field |
| Oconee County Regional (CEU) | Clemson | SC | Roy Otten Memorial Airfield to Oconee County Regional |
| Mettel Field (CEV) | Connersville | IN | Roy Otten Memorial Airfield to Mettel Field |
| Bob Sikes (CEW) | Crestview | FL | Roy Otten Memorial Airfield to Bob Sikes |
| Kyle-Oakley Field (CEY) | Murray | KY | Roy Otten Memorial Airfield to Kyle-Oakley Field |
| Coulter Field (CFD) | Bryan | TX | Roy Otten Memorial Airfield to Coulter Field |
| Coffeyville Municipal (CFV) | Coffeyville | KS | Roy Otten Memorial Airfield to Coffeyville Municipal |
| Cuyahoga County (CGF) | Cleveland | OH | Roy Otten Memorial Airfield to Cuyahoga County |
| Cape Girardeau Regional (CGI) | Cape Girardeau | MO | Roy Otten Memorial Airfield to Cape Girardeau Regional |
| Lovell Field (CHA) | Chattanooga | TN | Roy Otten Memorial Airfield to Lovell Field |
| Chickasha Municipal (CHK) | Chickasha | OK | Roy Otten Memorial Airfield to Chickasha Municipal |
| Charlottesville Albemarle (CHO) | Charlottesville | VA | Roy Otten Memorial Airfield to Charlottesville Albemarle |
| The Eastern Iowa (CID) | Cedar Rapids | IA | Roy Otten Memorial Airfield to The Eastern Iowa |
| Craig-Moffat (CIG) | Craig | CO | Roy Otten Memorial Airfield to Craig-Moffat |
| Arthur N Neu (CIN) | Carroll | IA | Roy Otten Memorial Airfield to Arthur N Neu |
| Cairo Regional (CIR) | Cairo | IL | Roy Otten Memorial Airfield to Cairo Regional |
| Chippewa County International (CIU) | Sault Ste Marie | MI | Roy Otten Memorial Airfield to Chippewa County International |
| North Central West Virginia (CKB) | Clarksburg | WV | Roy Otten Memorial Airfield to North Central West Virginia |
| Fletcher Field (CKM) | Clarksdale | MS | Roy Otten Memorial Airfield to Fletcher Field |
| Crookston Municipal Kirkwood Field (CKN) | Crookston | MN | Roy Otten Memorial Airfield to Crookston Municipal Kirkwood Field |
| Outlaw Field (CKV) | Clarksville | TN | Roy Otten Memorial Airfield to Outlaw Field |
| Cleveland/Hopkins International (CLE) | Cleveland | OH | Roy Otten Memorial Airfield to Cleveland/Hopkins International |
| Clintonville Municipal (CLI) | Clintonville | WI | Roy Otten Memorial Airfield to Clintonville Municipal |
| Clinton Regional (CLK) | Clinton | OK | Roy Otten Memorial Airfield to Clinton Regional |
| Easterwood Field (CLL) | College Station | TX | Roy Otten Memorial Airfield to Easterwood Field |
| Charlotte Douglas International (CLT) | Charlotte | NC | Roy Otten Memorial Airfield to Charlotte Douglas International |
| Columbus Municipal (CLU) | Columbus | IN | Roy Otten Memorial Airfield to Columbus Municipal |
| John Glenn International (CMH) | Columbus | OH | Roy Otten Memorial Airfield to John Glenn International |
| University of Illinois-Willard (CMI) | Champaign/Urbana | IL | Roy Otten Memorial Airfield to University of Illinois-Willard |
| Houghton County Memorial (CMX) | Hancock | MI | Roy Otten Memorial Airfield to Houghton County Memorial |
| Sparta/Fort Mccoy (CMY) | Sparta | WI | Roy Otten Memorial Airfield to Sparta/Fort Mccoy |
| Fremont County (CNE) | Canon City | CO | Roy Otten Memorial Airfield to Fremont County |
| Blosser Municipal (CNK) | Concordia | KS | Roy Otten Memorial Airfield to Blosser Municipal |
| Cavern City Air Terminal (CNM) | Carlsbad | NM | Roy Otten Memorial Airfield to Cavern City Air Terminal |
| Chanute Martin Johnson (CNU) | Chanute | KS | Roy Otten Memorial Airfield to Chanute Martin Johnson |
| Waco Texas State Techical College (CNW) | Waco | TX | Roy Otten Memorial Airfield to Waco Texas State Techical College |
| Coleman Municipal (COM) | Coleman | TX | Roy Otten Memorial Airfield to Coleman Municipal |
| City of Colorado Springs Municipal (COS) | Colorado Springs | CO | Roy Otten Memorial Airfield to City of Colorado Springs Municipal |
| Cotulla-La Salle County (COT) | Cotulla | TX | Roy Otten Memorial Airfield to Cotulla-La Salle County |
| Casper/Natrona County International (CPR) | Casper | WY | Roy Otten Memorial Airfield to Casper/Natrona County International |
| St Louis Downtown (CPS) | Cahokia/St Louis | IL | Roy Otten Memorial Airfield to St Louis Downtown |
| Corpus Christi International (CRP) | Corpus Christi | TX | Roy Otten Memorial Airfield to Corpus Christi International |
| C David Campbell Field-Corsicana Municipal (CRS) | Corsicana | TX | Roy Otten Memorial Airfield to C David Campbell Field-Corsicana Municipal |
| Z M Jack Stell Field (CRT) | Crossett | AR | Roy Otten Memorial Airfield to Z M Jack Stell Field |
| Yeager (CRW) | Charleston | WV | Roy Otten Memorial Airfield to Yeager |
| Roscoe Turner (CRX) | Corinth | MS | Roy Otten Memorial Airfield to Roscoe Turner |
| Columbus Metropolitan (CSG) | Columbus | GA | Roy Otten Memorial Airfield to Columbus Metropolitan |
| Clinton-Sherman (CSM) | Clinton | OK | Roy Otten Memorial Airfield to Clinton-Sherman |
| Creston Municipal (CSQ) | Creston | IA | Roy Otten Memorial Airfield to Creston Municipal |
| Crossville Memorial/Whitson Field (CSV) | Crossville | TN | Roy Otten Memorial Airfield to Crossville Memorial/Whitson Field |
| Canton Municipal (CTK) | Canton | SD | Roy Otten Memorial Airfield to Canton Municipal |
| Jim Hamilton L.B. Owens (CUB) | Columbia | SC | Roy Otten Memorial Airfield to Jim Hamilton L.B. Owens |
| Cushing Municipal (CUH) | Cushing | OK | Roy Otten Memorial Airfield to Cushing Municipal |
| Cincinnati Northern Kentucky International (CVG) | Cincinnati | OH | Roy Otten Memorial Airfield to Cincinnati Northern Kentucky International |
| Clovis Municipal (CVN) | Clovis | NM | Roy Otten Memorial Airfield to Clovis Municipal |
| Central Wisconsin (CWA) | Mosinee | WI | Roy Otten Memorial Airfield to Central Wisconsin |
| Chennault International (CWF) | Lake Charles | LA | Roy Otten Memorial Airfield to Chennault International |
| Clinton Municipal (CWI) | Clinton | IA | Roy Otten Memorial Airfield to Clinton Municipal |
| Conroe North Houston Regional (CXO) | Houston | TX | Roy Otten Memorial Airfield to Conroe North Houston Regional |
| Cheyenne Regional/Jerry Olson Field (CYS) | Cheyenne | WY | Roy Otten Memorial Airfield to Cheyenne Regional/Jerry Olson Field |
| Dimmit County (CZT) | Carrizo Springs | TX | Roy Otten Memorial Airfield to Dimmit County |
| Dallas Love Field (DAL) | Dallas | TX | Roy Otten Memorial Airfield to Dallas Love Field |
| Danville Regional (DAN) | Danville | VA | Roy Otten Memorial Airfield to Danville Regional |
| Dayton International James M Cox (DAY) | Dayton | OH | Roy Otten Memorial Airfield to Dayton International James M Cox |
| Dublin W H Bud Barron (DBN) | Dublin | GA | Roy Otten Memorial Airfield to Dublin W H Bud Barron |
| Dubuque Regional (DBQ) | Dubuque | IA | Roy Otten Memorial Airfield to Dubuque Regional |
| Pryor Field Regional (DCU) | Decatur | AL | Roy Otten Memorial Airfield to Pryor Field Regional |
| Dodge City Regional (DDC) | Dodge City | KS | Roy Otten Memorial Airfield to Dodge City Regional |
| Decatur (DEC) | Decatur | IL | Roy Otten Memorial Airfield to Decatur |
| Decorah Municipal (DEH) | Decorah | IA | Roy Otten Memorial Airfield to Decorah Municipal |
| Denver International (DEN) | Denver | CO | Roy Otten Memorial Airfield to Denver International |
| Coleman A Young Municipal (DET) | Detroit | MI | Roy Otten Memorial Airfield to Coleman A Young Municipal |
| Defiance Memorial (DFI) | Defiance | OH | Roy Otten Memorial Airfield to Defiance Memorial |
| Dallas-Fort Worth International (DFW) | Dallas | TX | Roy Otten Memorial Airfield to Dallas-Fort Worth International |
| Converse County (DGW) | Douglas | WY | Roy Otten Memorial Airfield to Converse County |
| Dothan Regional (DHN) | Dothan | AL | Roy Otten Memorial Airfield to Dothan Regional |
| Dalhart Municipal (DHT) | Dalhart | TX | Roy Otten Memorial Airfield to Dalhart Municipal |
| Dickinson Theodore Roosevelt Regional (DIK) | Dickinson | ND | Roy Otten Memorial Airfield to Dickinson Theodore Roosevelt Regional |
| Chautauqua County/Dunkirk (DKK) | Dunkirk | NY | Roy Otten Memorial Airfield to Chautauqua County/Dunkirk |
| Duluth International (DLH) | Duluth | MN | Roy Otten Memorial Airfield to Duluth International |
| Dillon County Airport (DLL) | Dillon | SD | Roy Otten Memorial Airfield to Dillon County Airport |
| Daniel Field (DNL) | Augusta | GA | Roy Otten Memorial Airfield to Daniel Field |
| Dalton Municipal (DNN) | Dalton | GA | Roy Otten Memorial Airfield to Dalton Municipal |
| Denison Municipal (DNS) | Denison | IA | Roy Otten Memorial Airfield to Denison Municipal |
| Vermilion Regional (DNV) | Danville | IL | Roy Otten Memorial Airfield to Vermilion Regional |
| Dupage (DPA) | Chicago | IL | Roy Otten Memorial Airfield to Dupage |
| Drummond Island (DRE) | Drummond Island | MI | Roy Otten Memorial Airfield to Drummond Island |
| Beauregard Regional (DRI) | De Ridder | LA | Roy Otten Memorial Airfield to Beauregard Regional |
| Del Rio International (DRT) | Del Rio | TX | Roy Otten Memorial Airfield to Del Rio International |
| Destin Executive (DSI) | Destin | FL | Roy Otten Memorial Airfield to Destin Executive |
| Des Moines International (DSM) | Des Moines | IA | Roy Otten Memorial Airfield to Des Moines International |
| Detroit Lakes-Wething Field (DTL) | Detroit Lakes | MN | Roy Otten Memorial Airfield to Detroit Lakes-Wething Field |
| Shreveport Downtown (DTN) | Shreveport | LA | Roy Otten Memorial Airfield to Shreveport Downtown |
| Detroit Metro Wayne County (DTW) | Detroit | MI | Roy Otten Memorial Airfield to Detroit Metro Wayne County |
| Durant Regional - Eaker Field (DUA) | Durant | OK | Roy Otten Memorial Airfield to Durant Regional - Eaker Field |
| Halliburton Field (DUC) | Duncan | OK | Roy Otten Memorial Airfield to Halliburton Field |
| Dubois Regional (DUJ) | DuBois | PA | Roy Otten Memorial Airfield to Dubois Regional |
| Devils Lake Regional (DVL) | Devils Lake | ND | Roy Otten Memorial Airfield to Devils Lake Regional |
| Davenport Municipal (DVN) | Davenport | IA | Roy Otten Memorial Airfield to Davenport Municipal |
| David Wayne Hooks Memorial (DWH) | Houston | TX | Roy Otten Memorial Airfield to David Wayne Hooks Memorial |
| Phifer Airfield (EAN) | Wheatland | WY | Roy Otten Memorial Airfield to Phifer Airfield |
| Kearney Regional (EAR) | Kearney | NE | Roy Otten Memorial Airfield to Kearney Regional |
| Chippewa Valley Regional (EAU) | Eau Claire | WI | Roy Otten Memorial Airfield to Chippewa Valley Regional |
| Webster City Municipal (EBS) | Webster City | IA | Roy Otten Memorial Airfield to Webster City Municipal |
| Iosco County (ECA) | East Tawas | MI | Roy Otten Memorial Airfield to Iosco County |
| Northwest Florida Beaches International (ECP) | Panama City | FL | Roy Otten Memorial Airfield to Northwest Florida Beaches International |
| Mondell Field (ECS) | Newcastle | WY | Roy Otten Memorial Airfield to Mondell Field |
| El Dorado/Captain Jack Thomas Memorial (EDK) | El Dorado | KS | Roy Otten Memorial Airfield to El Dorado/Captain Jack Thomas Memorial |
| Ellington (EFD) | Houston | TX | Roy Otten Memorial Airfield to Ellington |
| Jefferson Municipal (EFW) | Jefferson | IA | Roy Otten Memorial Airfield to Jefferson Municipal |
| Maverick County Memorial International (EGP) | Eagle Pass | TX | Roy Otten Memorial Airfield to Maverick County Memorial International |
| Eagle River Union (EGV) | Eagle River | WI | Roy Otten Memorial Airfield to Eagle River Union |
| Elkhart Municipal (EKI) | Elkhart | IN | Roy Otten Memorial Airfield to Elkhart Municipal |
| Elkins/Randolph County (EKN) | Elkins | WV | Roy Otten Memorial Airfield to Elkins/Randolph County |
| Addington Field (EKX) | Elizabethtown | KY | Roy Otten Memorial Airfield to Addington Field |
| Eagle Lake (ELA) | Eagle Lake | TX | Roy Otten Memorial Airfield to Eagle Lake |
| South Arkansas Regional at Goodwin Field (ELD) | El Dorado | AR | Roy Otten Memorial Airfield to South Arkansas Regional at Goodwin Field |
| Elk City Regional Business (ELK) | Elk City | OK | Roy Otten Memorial Airfield to Elk City Regional Business |
| Emporia Municipal (EMP) | Emporia | KS | Roy Otten Memorial Airfield to Emporia Municipal |
| Centralia Municipal (ENL) | Centralia | IL | Roy Otten Memorial Airfield to Centralia Municipal |
| Kenosha Regional (ENW) | Kenosha | WI | Roy Otten Memorial Airfield to Kenosha Regional |
| Keokuk Municipal (EOK) | Keokuk | IA | Roy Otten Memorial Airfield to Keokuk Municipal |
| Neosho Hugh Robinson (EOS) | Neosho | MO | Roy Otten Memorial Airfield to Neosho Hugh Robinson |
| Erie International/Tom Ridge Field (ERI) | Erie | PA | Roy Otten Memorial Airfield to Erie International/Tom Ridge Field |
| Kerrville Municipal/Louis Schreiner Field (ERV) | Kerrville | TX | Roy Otten Memorial Airfield to Kerrville Municipal/Louis Schreiner Field |
| Delta County (ESC) | Escanaba | MI | Roy Otten Memorial Airfield to Delta County |
| Esler Regional (ESF) | Alexandria | LA | Roy Otten Memorial Airfield to Esler Regional |
| Ohkay Owingeh (ESO) | Espanola | NM | Roy Otten Memorial Airfield to Ohkay Owingeh |
| Estherville Municipal (EST) | Estherville | IA | Roy Otten Memorial Airfield to Estherville Municipal |
| West Bend Municipal (ETB) | West Bend | WI | Roy Otten Memorial Airfield to West Bend Municipal |
| Eastland Municipal (ETN) | Eastland | TX | Roy Otten Memorial Airfield to Eastland Municipal |
| Enterprise Municipal (ETS) | Enterprise | AL | Roy Otten Memorial Airfield to Enterprise Municipal |
| Weedon Field (EUF) | Eufaula | AL | Roy Otten Memorial Airfield to Weedon Field |
| Eveleth-Virginia Municipal (EVM) | Eveleth | MN | Roy Otten Memorial Airfield to Eveleth-Virginia Municipal |
| Evansville Regional (EVV) | Evansville | IN | Roy Otten Memorial Airfield to Evansville Regional |
| Newton City County (EWK) | Newton | KS | Roy Otten Memorial Airfield to Newton City County |
| Farmington Regional (FAM) | Farmington | MO | Roy Otten Memorial Airfield to Farmington Regional |
| Hector International Fargo (FAR) | Fargo | ND | Roy Otten Memorial Airfield to Hector International Fargo |
| Faribault Municipal (FBL) | Faribault | MN | Roy Otten Memorial Airfield to Faribault Municipal |
| Fairbury Municipal (FBY) | Fairbury | NE | Roy Otten Memorial Airfield to Fairbury Municipal |
| Flying Cloud (FCM) | Minneapolis | MN | Roy Otten Memorial Airfield to Flying Cloud |
| Forrest City Municipal (FCY) | Forrest City | AR | Roy Otten Memorial Airfield to Forrest City Municipal |
| Frederick Regional (FDR) | Frederick | OK | Roy Otten Memorial Airfield to Frederick Regional |
| Findlay (FDY) | Findlay | OH | Roy Otten Memorial Airfield to Findlay |
| Albertus (FEP) | Freeport | IL | Roy Otten Memorial Airfield to Albertus |
| Fremont Municipal (FET) | Fremont | NE | Roy Otten Memorial Airfield to Fremont Municipal |
| Fairfield Municipal (FFL) | Fairfield | IA | Roy Otten Memorial Airfield to Fairfield Municipal |
| Fergus Falls Municipal-Einar Mickelson Field (FFM) | Fergus Falls | MN | Roy Otten Memorial Airfield to Fergus Falls Municipal-Einar Mickelson Field |
| Capital City (FFT) | Frankfort | KY | Roy Otten Memorial Airfield to Capital City |
| Venango Regional (FKL) | Franklin | PA | Roy Otten Memorial Airfield to Venango Regional |
| Fond Du Lac County (FLD) | Fond Du Lac | WI | Roy Otten Memorial Airfield to Fond Du Lac County |
| Florence Regional (FLO) | Florence | SC | Roy Otten Memorial Airfield to Florence Regional |
| Marion County Regional (FLP) | Flippin | AR | Roy Otten Memorial Airfield to Marion County Regional |
| Sherman Army Airfield (FLV) | Fort Leavenworth | KS | Roy Otten Memorial Airfield to Sherman Army Airfield |
| Fort Madison Municipal (FMS) | Fort Madison | IA | Roy Otten Memorial Airfield to Fort Madison Municipal |
| Northern Colorado Regional (FNL) | Ft Collins/Loveland | CO | Roy Otten Memorial Airfield to Northern Colorado Regional |
| Bishop International (FNT) | Flint | MI | Roy Otten Memorial Airfield to Bishop International |
| Fort Dodge Regional (FOD) | Fort Dodge | IA | Roy Otten Memorial Airfield to Fort Dodge Regional |
| Topeka Regional (FOE) | Topeka | KS | Roy Otten Memorial Airfield to Topeka Regional |
| Perry-Foley (FPY) | Perry | FL | Roy Otten Memorial Airfield to Perry-Foley |
| French Lick Municipal (FRH) | French Lick | IN | Roy Otten Memorial Airfield to French Lick Municipal |
| Fairmont Municipal (FRM) | Fairmont | MN | Roy Otten Memorial Airfield to Fairmont Municipal |
| Front Royal-Warren County (FRR) | Front Royal | VA | Roy Otten Memorial Airfield to Front Royal-Warren County |
| Sioux Falls Regional, Joe Foss Field (FSD) | Sioux Falls | SD | Roy Otten Memorial Airfield to Sioux Falls Regional, Joe Foss Field |
| Fort Scott Municipal (FSK) | Fort Scott | KS | Roy Otten Memorial Airfield to Fort Scott Municipal |
| Fort Smith Regional (FSM) | Fort Smith | AR | Roy Otten Memorial Airfield to Fort Smith Regional |
| Fort Stockton-Pecos County (FST) | Fort Stockton | TX | Roy Otten Memorial Airfield to Fort Stockton-Pecos County |
| Fort Sumner Municipal (FSU) | Fort Sumner | NM | Roy Otten Memorial Airfield to Fort Sumner Municipal |
| Fort Worth Meacham International (FTW) | Fort Worth | TX | Roy Otten Memorial Airfield to Fort Worth Meacham International |
| Fulton County/Brown Field (FTY) | Atlanta | GA | Roy Otten Memorial Airfield to Fulton County/Brown Field |
| Fort Wayne International (FWA) | Fort Wayne | IN | Roy Otten Memorial Airfield to Fort Wayne International |
| Branson West Municipal - Emerson Field (FWB) | Branson West | MO | Roy Otten Memorial Airfield to Branson West Municipal - Emerson Field |
| Forest City Municipal (FXY) | Forest City | IA | Roy Otten Memorial Airfield to Forest City Municipal |
| Fayetteville Municipal (FYM) | Fayetteville | TN | Roy Otten Memorial Airfield to Fayetteville Municipal |
| Drake Field (FYV) | Fayetteville | AR | Roy Otten Memorial Airfield to Drake Field |
| Northeast Alabama Regional (GAD) | Gadsden | AL | Roy Otten Memorial Airfield to Northeast Alabama Regional |
| Gage (GAG) | Gage | OK | Roy Otten Memorial Airfield to Gage |
| Great Bend Municipal (GBD) | Great Bend | KS | Roy Otten Memorial Airfield to Great Bend Municipal |
| Galesburg Municipal (GBG) | Galesburg | IL | Roy Otten Memorial Airfield to Galesburg Municipal |
| Gillette-Campbell County (GCC) | Gillette | WY | Roy Otten Memorial Airfield to Gillette-Campbell County |
| Garden City Regional (GCK) | Garden City | KS | Roy Otten Memorial Airfield to Garden City Regional |
| Greeneville-Greene County Municipal (GCY) | Greeneville | TN | Roy Otten Memorial Airfield to Greeneville-Greene County Municipal |
| Donaldson Field (GDC) | Greenville | SC | Roy Otten Memorial Airfield to Donaldson Field |
| Gladwin Zettel Memorial (GDW) | Gladwin | MI | Roy Otten Memorial Airfield to Gladwin Zettel Memorial |
| Grand Forks International (GFK) | Grand Forks | ND | Roy Otten Memorial Airfield to Grand Forks International |
| East Texas Regional (GGG) | Longview | TX | Roy Otten Memorial Airfield to East Texas Regional |
| Centerville Municipal (GHM) | Centerville | TN | Roy Otten Memorial Airfield to Centerville Municipal |
| Gatlinburg-Pigeon Forge (GKT) | Sevierville | TN | Roy Otten Memorial Airfield to Gatlinburg-Pigeon Forge |
| Renner Field/Goodland Municipal (GLD) | Goodland | KS | Roy Otten Memorial Airfield to Renner Field/Goodland Municipal |
| Gainesville Municipal (GLE) | Gainesville | TX | Roy Otten Memorial Airfield to Gainesville Municipal |
| Greenville Mid-Delta (GLH) | Greenville | MS | Roy Otten Memorial Airfield to Greenville Mid-Delta |
| Gaylord Regional (GLR) | Gaylord | MI | Roy Otten Memorial Airfield to Gaylord Regional |
| Scholes International at Galveston (GLS) | Galveston | TX | Roy Otten Memorial Airfield to Scholes International at Galveston |
| Glasgow Municipal (GLW) | Glasgow | KY | Roy Otten Memorial Airfield to Glasgow Municipal |
| Greenville Downtown (GMU) | Greenville | SC | Roy Otten Memorial Airfield to Greenville Downtown |
| Guthrie-Edmond Regional (GOK) | Guthrie | OK | Roy Otten Memorial Airfield to Guthrie-Edmond Regional |
| Gulfport-Biloxi International (GPT) | Gulfport | MS | Roy Otten Memorial Airfield to Gulfport-Biloxi International |
| Grand Rapids/Itasca County-Gordon Newstrom Field (GPZ) | Grand Rapids | MN | Roy Otten Memorial Airfield to Grand Rapids/Itasca County-Gordon Newstrom Field |
| Galion Municipal (GQQ) | Galion | OH | Roy Otten Memorial Airfield to Galion Municipal |
| Austin Straubel International (GRB) | Green Bay | WI | Roy Otten Memorial Airfield to Austin Straubel International |
| Greenwood County (GRD) | Greenwood | SC | Roy Otten Memorial Airfield to Greenwood County |
| Greenville (GRE) | Greenville | IL | Roy Otten Memorial Airfield to Greenville |
| Central Nebraska Regional (GRI) | Grand Island | NE | Roy Otten Memorial Airfield to Central Nebraska Regional |
| Killeen/Fort Hood Regional/Robert Gray AAF (GRK) | Killeen | TX | Roy Otten Memorial Airfield to Killeen/Fort Hood Regional/Robert Gray AAF |
| Grand Marais/Cook County (GRM) | Grand Marais | MN | Roy Otten Memorial Airfield to Grand Marais/Cook County |
| Gordon Municipal (GRN) | Gordon | NE | Roy Otten Memorial Airfield to Gordon Municipal |
| Gerald R Ford International (GRR) | Grand Rapids | MI | Roy Otten Memorial Airfield to Gerald R Ford International |
| Goshen Municipal (GSH) | Goshen | IN | Roy Otten Memorial Airfield to Goshen Municipal |
| Piedmont Triad International (GSO) | Greensboro | NC | Roy Otten Memorial Airfield to Piedmont Triad International |
| Greenville Spartanburg International (GSP) | Greer | SC | Roy Otten Memorial Airfield to Greenville Spartanburg International |
| Grantsburg Muni (GTG) | Grantsburg | WI | Roy Otten Memorial Airfield to Grantsburg Muni |
| Golden Triangle Regional (GTR) | Columbus | MS | Roy Otten Memorial Airfield to Golden Triangle Regional |
| Gunnison/Crested Butte Regional (GUC) | Gunnison | CO | Roy Otten Memorial Airfield to Gunnison/Crested Butte Regional |
| Jack Edwards National (GUF) | Gulf Shores | AL | Roy Otten Memorial Airfield to Jack Edwards National |
| Grissom Aeroplex/Arb (GUS) | Peru | IN | Roy Otten Memorial Airfield to Grissom Aeroplex/Arb |
| Guymon Municipal (GUY) | Guymon | OK | Roy Otten Memorial Airfield to Guymon Municipal |
| Lee Gilmer Memorial (GVL) | Gainesville | GA | Roy Otten Memorial Airfield to Lee Gilmer Memorial |
| Majors (GVT) | Greenville | TX | Roy Otten Memorial Airfield to Majors |
| Greenwood Leflore (GWO) | Greenwood | MS | Roy Otten Memorial Airfield to Greenwood Leflore |
| Glenwood Springs Municipal (GWS) | Glenwood Springs | CO | Roy Otten Memorial Airfield to Glenwood Springs Municipal |
| Greeley-Weld County (GXY) | Greeley | CO | Roy Otten Memorial Airfield to Greeley-Weld County |
| Gary/Chicago International (GYY) | GARY | IN | Roy Otten Memorial Airfield to Gary/Chicago International |
| Marion County-Rankin Fite (HAB) | Hamilton | AL | Roy Otten Memorial Airfield to Marion County-Rankin Fite |
| Three Rivers Municipal Dr Haines (HAI) | Three Rivers | MI | Roy Otten Memorial Airfield to Three Rivers Municipal Dr Haines |
| Butler County Regional-Hogan Field (HAO) | Hamilton | OH | Roy Otten Memorial Airfield to Butler County Regional-Hogan Field |
| Hattiesburg Bobby L Chain Municipal (HBG) | Hattiesburg | MS | Roy Otten Memorial Airfield to Hattiesburg Bobby L Chain Municipal |
| Hobart Regional (HBR) | Hobart | OK | Roy Otten Memorial Airfield to Hobart Regional |
| Big Spring Mc Mahon-Wrinkle (HCA) | Big Spring | TX | Roy Otten Memorial Airfield to Big Spring Mc Mahon-Wrinkle |
| Cheraw Municipal/Lynch Bellinger Field (HCW) | Cheraw | SC | Roy Otten Memorial Airfield to Cheraw Municipal/Lynch Bellinger Field |
| Brewster Field (HDE) | Holdrege | NE | Roy Otten Memorial Airfield to Brewster Field |
| Hayden Yampa Valley Regional (HDN) | Hayden | CO | Roy Otten Memorial Airfield to Hayden Yampa Valley Regional |
| Thompson-Robbins (HEE) | Helena/West Helena | AR | Roy Otten Memorial Airfield to Thompson-Robbins |
| Natchez-Adams County (Hardy-Anders Field) (HEZ) | Natchez | MS | Roy Otten Memorial Airfield to Natchez-Adams County (Hardy-Anders Field) |
| Range Regional (HIB) | Hibbing | MN | Roy Otten Memorial Airfield to Range Regional |
| Blytheville Municipal (HKA) | Blytheville | AR | Roy Otten Memorial Airfield to Blytheville Municipal |
| Hawkins Field (HKS) | Jackson | MS | Roy Otten Memorial Airfield to Hawkins Field |
| Hickory Regional (HKY) | Hickory | NC | Roy Otten Memorial Airfield to Hickory Regional |
| Hill City Municipal (HLC) | Hill City | KS | Roy Otten Memorial Airfield to Hill City Municipal |
| Wheeling Ohio County (HLG) | Wheeling | WV | Roy Otten Memorial Airfield to Wheeling Ohio County |
| Park Township (HLM) | Holland | MI | Roy Otten Memorial Airfield to Park Township |
| Huntingburg (HNB) | Huntingburg | IN | Roy Otten Memorial Airfield to Huntingburg |
| Hobbs/Lea County Regional (HOB) | Hobbs | NM | Roy Otten Memorial Airfield to Hobbs/Lea County Regional |
| Huron Regional (HON) | Huron | SD | Roy Otten Memorial Airfield to Huron Regional |
| Memorial Field (HOT) | Hot Springs | AR | Roy Otten Memorial Airfield to Memorial Field |
| William P Hobby (HOU) | Houston | TX | Roy Otten Memorial Airfield to William P Hobby |
| Hampton Municipal (HPT) | Hampton | IA | Roy Otten Memorial Airfield to Hampton Municipal |
| Baytown (HPY) | Houston | TX | Roy Otten Memorial Airfield to Baytown |
| Boone County Regional (HRO) | Harrison | AR | Roy Otten Memorial Airfield to Boone County Regional |
| Harrisburg-Raleigh (HSB) | Harrisburg | IL | Roy Otten Memorial Airfield to Harrisburg-Raleigh |
| Hastings Municipal (HSI) | Hastings | NE | Roy Otten Memorial Airfield to Hastings Municipal |
| Ingalls Field (HSP) | Hot Springs | VA | Roy Otten Memorial Airfield to Ingalls Field |
| Huntsville International/Carl T Jones Field (HSV) | Huntsville | AL | Roy Otten Memorial Airfield to Huntsville International/Carl T Jones Field |
| Roscommon County - Blodgett Memorial (HTL) | Houghton Lake | MI | Roy Otten Memorial Airfield to Roscommon County - Blodgett Memorial |
| Tri-State Milton J Ferguson Field (HTS) | Huntington | WV | Roy Otten Memorial Airfield to Tri-State Milton J Ferguson Field |
| Huntsville Municipal (HTV) | Huntsville | TX | Roy Otten Memorial Airfield to Huntsville Municipal |
| Lawrence County Airpark (HTW) | Chesapeake | OH | Roy Otten Memorial Airfield to Lawrence County Airpark |
| Humboldt Municipal (HUD) | Humboldt | IA | Roy Otten Memorial Airfield to Humboldt Municipal |
| Terre Haute Regional (HUF) | Terre Haute | IN | Roy Otten Memorial Airfield to Terre Haute Regional |
| Stan Stamper Municipal (HUJ) | Hugo | OK | Roy Otten Memorial Airfield to Stan Stamper Municipal |
| Houma-Terrebonne (HUM) | Houma | LA | Roy Otten Memorial Airfield to Houma-Terrebonne |
| Hutchinson Regional (HUT) | Hutchinson | KS | Roy Otten Memorial Airfield to Hutchinson Regional |
| Hartsville Regional (HVS) | Hartsville | SC | Roy Otten Memorial Airfield to Hartsville Regional |
| San Marcos Regional (HYI) | San Marcos | TX | Roy Otten Memorial Airfield to San Marcos Regional |
| Sawyer County (HYR) | Hayward | WI | Roy Otten Memorial Airfield to Sawyer County |
| Hays Regional (HYS) | Hays | KS | Roy Otten Memorial Airfield to Hays Regional |
| Niagara Falls International (IAG) | Niagara Falls | NY | Roy Otten Memorial Airfield to Niagara Falls International |
| George Bush Intercontinental Houston (IAH) | Houston | TX | Roy Otten Memorial Airfield to George Bush Intercontinental Houston |
| Schenck Field (ICL) | Clarinda | IA | Roy Otten Memorial Airfield to Schenck Field |
| Wichita Eisenhower National (ICT) | Wichita | KS | Roy Otten Memorial Airfield to Wichita Eisenhower National |
| Ida Grove Municipal (IDG) | Ida Grove | IA | Roy Otten Memorial Airfield to Ida Grove Municipal |
| Indiana County/Jimmy Stewart Field (IDI) | Indiana | PA | Roy Otten Memorial Airfield to Indiana County/Jimmy Stewart Field |
| Independence Municipal (IDP) | Independence | KS | Roy Otten Memorial Airfield to Independence Municipal |
| Iowa Falls Municipal (IFA) | Iowa Falls | IA | Roy Otten Memorial Airfield to Iowa Falls Municipal |
| Jacksonville Municipal (IJX) | Jacksonville | IL | Roy Otten Memorial Airfield to Jacksonville Municipal |
| Wilkes County (IKB) | N Wilkesboro | NC | Roy Otten Memorial Airfield to Wilkes County |
| Greater Kankakee (IKK) | Kankakee | IL | Roy Otten Memorial Airfield to Greater Kankakee |
| Skylark Field Killeen (ILE) | Killeen | TX | Roy Otten Memorial Airfield to Skylark Field Killeen |
| Willmar Municipal/John L Rice Field (ILL) | Willmar | MN | Roy Otten Memorial Airfield to Willmar Municipal/John L Rice Field |
| Wilmington Airpark (ILN) | Wilmington | OH | Roy Otten Memorial Airfield to Wilmington Airpark |
| Imperial Municipal (IML) | Imperial | NE | Roy Otten Memorial Airfield to Imperial Municipal |
| Ford (IMT) | Iron Mountain | MI | Roy Otten Memorial Airfield to Ford |
| Indianapolis International (IND) | Indianapolis | IN | Roy Otten Memorial Airfield to Indianapolis International |
| Winkler County (INK) | Wink | TX | Roy Otten Memorial Airfield to Winkler County |
| Falls Intl-Einarson Field (INL) | International Falls | MN | Roy Otten Memorial Airfield to Falls Intl-Einarson Field |
| Smith Reynolds (INT) | Winston-Salem | NC | Roy Otten Memorial Airfield to Smith Reynolds |
| Iowa City Municipal (IOW) | Iowa City | IA | Roy Otten Memorial Airfield to Iowa City Municipal |
| Iraan Municipal (IRB) | Iraan | TX | Roy Otten Memorial Airfield to Iraan Municipal |
| Kirksville Regional (IRK) | Kirksville | MO | Roy Otten Memorial Airfield to Kirksville Regional |
| Kirsch Municipal (IRS) | Sturgis | MI | Roy Otten Memorial Airfield to Kirsch Municipal |
| Schoolcraft County (ISQ) | Manistique | MI | Roy Otten Memorial Airfield to Schoolcraft County |
| Alexander Field South Wood County (ISW) | Wisconsin Rapids | WI | Roy Otten Memorial Airfield to Alexander Field South Wood County |
| Gogebic-Iron County (IWD) | Ironwood | MI | Roy Otten Memorial Airfield to Gogebic-Iron County |
| West Houston (IWS) | Houston | TX | Roy Otten Memorial Airfield to West Houston |
| Jackson/Evers International (JAN) | Jackson | MS | Roy Otten Memorial Airfield to Jackson/Evers International |
| Jasper County-Bell Field (JAS) | Jasper | TX | Roy Otten Memorial Airfield to Jasper County-Bell Field |
| Jonesboro Municipal (JBR) | Jonesboro | AR | Roy Otten Memorial Airfield to Jonesboro Municipal |
| New Century Aircenter (JCI) | Olathe | KS | Roy Otten Memorial Airfield to New Century Aircenter |
| Kimble County (JCT) | Junction | TX | Roy Otten Memorial Airfield to Kimble County |
| Northeast Ohio Regional (JFN) | Ashtabula | OH | Roy Otten Memorial Airfield to Northeast Ohio Regional |
| Chautauqua County/Jamestown (JHW) | Jamestown | NY | Roy Otten Memorial Airfield to Chautauqua County/Jamestown |
| Cherokee County (JKV) | Jacksonville | TX | Roy Otten Memorial Airfield to Cherokee County |
| Joplin Regional (JLN) | Joplin | MO | Roy Otten Memorial Airfield to Joplin Regional |
| Jamestown Regional (JMS) | Jamestown | ND | Roy Otten Memorial Airfield to Jamestown Regional |
| Joliet Regional Airport (JOT) | Joliet | IL | Roy Otten Memorial Airfield to Joliet Regional Airport |
| John Murtha Johnstown/Cambria County (JST) | Johnstown | PA | Roy Otten Memorial Airfield to John Murtha Johnstown/Cambria County |
| Souther Wisconsin Regional (JVL) | Janesville | WI | Roy Otten Memorial Airfield to Souther Wisconsin Regional |
| Jackson County/Reynolds Field (JXN) | Jackson | MI | Roy Otten Memorial Airfield to Jackson County/Reynolds Field |
| Williams County (K0G6) | Bryan | OH | Roy Otten Memorial Airfield to Williams County |
| Brenham Municipal (K11) | Brenham | TX | Roy Otten Memorial Airfield to Brenham Municipal |
| Wood County Regional (K1G0) | Bowling Green | OH | Roy Otten Memorial Airfield to Wood County Regional |
| Kent State University (K1G3) | Kent | OH | Roy Otten Memorial Airfield to Kent State University |
| Medina Municipal (K1G5) | Medina | OH | Roy Otten Memorial Airfield to Medina Municipal |
| Creve Coeur (K1H0) | St Louis | MO | Roy Otten Memorial Airfield to Creve Coeur |
| Effingham County Memorial (K1H2) | Effingham | IL | Roy Otten Memorial Airfield to Effingham County Memorial |
| Shelby County (K2H0) | Shelbyville | IL | Roy Otten Memorial Airfield to Shelby County |
| Lake In The Hills (K3CK) | Chicago | IL | Roy Otten Memorial Airfield to Lake In The Hills |
| Greene County Regional (K3J7) | Greensboro | GA | Roy Otten Memorial Airfield to Greene County Regional |
| Mount Hawley Auxiliary (K3MY) | Peoria | IL | Roy Otten Memorial Airfield to Mount Hawley Auxiliary |
| Scottsboro Municipal-Word Field (K4A6) | Scottsboro | AL | Roy Otten Memorial Airfield to Scottsboro Municipal-Word Field |
| Youngstown Elser Metro (K4G4) | Youngstown | OH | Roy Otten Memorial Airfield to Youngstown Elser Metro |
| Spanish Peaks Airfield (K4V1) | Walsenburg | CO | Roy Otten Memorial Airfield to Spanish Peaks Airfield |
| Bearce (K7M3) | Mount Ida | AR | Roy Otten Memorial Airfield to Bearce |
| Ferguson Airport (K82J) | Pensacola | FL | Roy Otten Memorial Airfield to Ferguson Airport |
| Spicewood (K88R) | Spicewood | TX | Roy Otten Memorial Airfield to Spicewood |
| Paul C. Miller-Sparta (K8D4) | Sparta | MI | Roy Otten Memorial Airfield to Paul C. Miller-Sparta |
| Wichita Col James Jabara (KAAO) | Wichita | KS | Roy Otten Memorial Airfield to Wichita Col James Jabara |
| Anoka County-Blaine (Janes Field) (KANE) | Minneapolis | MN | Roy Otten Memorial Airfield to Anoka County-Blaine (Janes Field) |
| Slidell (KASD) | Slidell | LA | Roy Otten Memorial Airfield to Slidell |
| Huron County Memorial (KBAX) | Bad Axe | MI | Roy Otten Memorial Airfield to Huron County Memorial |
| Burlington Municipal (KBUU) | Burlington | WI | Roy Otten Memorial Airfield to Burlington Municipal |
| Burlington-Alamance Regional (KBUY) | Burlington | NC | Roy Otten Memorial Airfield to Burlington-Alamance Regional |
| Mineral County Memorial (KC24) | Creede | CO | Roy Otten Memorial Airfield to Mineral County Memorial |
| Newnan Coweta County (KCCO) | Atlanta | GA | Roy Otten Memorial Airfield to Newnan Coweta County |
| Cambridge Municipal (KCDI) | Cambridge | OH | Roy Otten Memorial Airfield to Cambridge Municipal |
| Front Range (KCFO) | Denver | CO | Roy Otten Memorial Airfield to Front Range |
| Cherokee County Regional (KCNI) | Canton | GA | Roy Otten Memorial Airfield to Cherokee County Regional |
| West Georgia Regional - O V Gray Field (KCTJ) | Carrollton | GA | Roy Otten Memorial Airfield to West Georgia Regional - O V Gray Field |
| Custer County (KCUT) | Custer | SD | Roy Otten Memorial Airfield to Custer County |
| Charlevoix Municipal (KCVX) | Charlevoix | MI | Roy Otten Memorial Airfield to Charlevoix Municipal |
| Manitowish Waters (KD25) | Manitowish Waters | WI | Roy Otten Memorial Airfield to Manitowish Waters |
| Chester Catawba Regional (KDCM) | Chester | SC | Roy Otten Memorial Airfield to Chester Catawba Regional |
| Knoxville Downtown Island (KDKX) | Knoxville | TN | Roy Otten Memorial Airfield to Knoxville Downtown Island |
| Toledo Suburban (KDUH) | Lambertville | MI | Roy Otten Memorial Airfield to Toledo Suburban |
| Horseshoe Bay Resort (KDZB) | Austin | TX | Roy Otten Memorial Airfield to Horseshoe Bay Resort |
| Austin Executive (KEDC) | Austin | TX | Roy Otten Memorial Airfield to Austin Executive |
| Mitchell Field Bessemer (KEKY) | Bessemer | AL | Roy Otten Memorial Airfield to Mitchell Field Bessemer |
| Davidson County (KEXX) | Lexington | NC | Roy Otten Memorial Airfield to Davidson County |
| Eagle Creek Airpark (KEYE) | Indianapolis | IN | Roy Otten Memorial Airfield to Eagle Creek Airpark |
| Kewanee Municipal (KEZI) | Kewanee | IL | Roy Otten Memorial Airfield to Kewanee Municipal |
| Atlanta Regional/Falcon Field (KFFC) | Atlanta | GA | Roy Otten Memorial Airfield to Atlanta Regional/Falcon Field |
| Hammond Northshore Regional (KHDC) | Hammond | LA | Roy Otten Memorial Airfield to Hammond Northshore Regional |
| Hereford Municipal (KHRX) | Hereford | TX | Roy Otten Memorial Airfield to Hereford Municipal |
| Ortner (KI64) | Wakeman | OH | Roy Otten Memorial Airfield to Ortner |
| Breckinridge County (KI93) | Hardinsburg | KY | Roy Otten Memorial Airfield to Breckinridge County |
| Kickapoo Downtown (KIP) | Wichita Falls | TX | Roy Otten Memorial Airfield to Kickapoo Downtown |
| Wabash Municipal (KIWH) | Wabash | IN | Roy Otten Memorial Airfield to Wabash Municipal |
| John C Tune (KJWN) | Nashville | TN | Roy Otten Memorial Airfield to John C Tune |
| Gene Snyder (KK62) | Falmouth | KY | Roy Otten Memorial Airfield to Gene Snyder |
| Kentland Municipal (KKT) | Kentland | IN | Roy Otten Memorial Airfield to Kentland Municipal |
| Lancaster Regional (KLNC) | Lancaster | TX | Roy Otten Memorial Airfield to Lancaster Regional |
| South Haven Area Regional (KLWA) | South Haven | MI | Roy Otten Memorial Airfield to South Haven Area Regional |
| General Dewitt Spain (KM01) | Memphis | TN | Roy Otten Memorial Airfield to General Dewitt Spain |
| Harbor Springs (KMGN) | Harbor Springs | MI | Roy Otten Memorial Airfield to Harbor Springs |
| Metter Municipal (KMHP) | Metter | GA | Roy Otten Memorial Airfield to Metter Municipal |
| Mountain Empire (KMKJ) | Marion-Wythevil | VA | Roy Otten Memorial Airfield to Mountain Empire |
| Indianapolis Regional (KMQJ) | Indianapolis | IN | Roy Otten Memorial Airfield to Indianapolis Regional |
| Kennett Memorial (KNT) | Kennett | MO | Roy Otten Memorial Airfield to Kennett Memorial |
| Detroit Grosse Ile Municipal (KONZ) | Detroit Grosse Ile | MI | Roy Otten Memorial Airfield to Detroit Grosse Ile Municipal |
| Orr Regional (KORB) | Orr | MN | Roy Otten Memorial Airfield to Orr Regional |
| Price County (KPBH) | Phillips | WI | Roy Otten Memorial Airfield to Price County |
| Pike County-Hatcher Field (KPBX) | Pikeville | KY | Roy Otten Memorial Airfield to Pike County-Hatcher Field |
| Platteville Municipal (KPVB) | Platteville | WI | Roy Otten Memorial Airfield to Platteville Municipal |
| Lago Vista Tx - Rusty Allen (KRYW) | Lago Vista | TX | Roy Otten Memorial Airfield to Lago Vista Tx - Rusty Allen |
| Cobb County International-McCollum Field (KRYY) | Atlanta | GA | Roy Otten Memorial Airfield to Cobb County International-McCollum Field |
| Sonora Municipal (KSOA) | Sonora | TX | Roy Otten Memorial Airfield to Sonora Municipal |
| Saline County Regional (KSUZ) | Benton | AR | Roy Otten Memorial Airfield to Saline County Regional |
| Gillespie County (KT82) | Fredericksburg | TX | Roy Otten Memorial Airfield to Gillespie County |
| Mason Jewett Field (KTEW) | Mason | MI | Roy Otten Memorial Airfield to Mason Jewett Field |
| Mckinney National (KTKI) | McKinney | TX | Roy Otten Memorial Airfield to Mckinney National |
| Houston Executive (KTME) | Houston | TX | Roy Otten Memorial Airfield to Houston Executive |
| Centerville Municipal (KTVK) | Centerville | IA | Roy Otten Memorial Airfield to Centerville Municipal |
| Indianapolis Executive (KTYQ) | Indianapolis | IN | Roy Otten Memorial Airfield to Indianapolis Executive |
| Indianapolis Metropolitan (KUMP) | Indianapolis | IN | Roy Otten Memorial Airfield to Indianapolis Metropolitan |
| Bentonville Municipal/Louise M Thaden Field (KVBT) | Bentonville | AR | Roy Otten Memorial Airfield to Bentonville Municipal/Louise M Thaden Field |
| Oakland/Troy (KVLL) | Troy | MI | Roy Otten Memorial Airfield to Oakland/Troy |
| Lamar Municipal (LAA) | Lamar | CO | Roy Otten Memorial Airfield to Lamar Municipal |
| Purdue University (LAF) | Lafayette | IN | Roy Otten Memorial Airfield to Purdue University |
| Los Alamos (LAM) | Los Alamos | NM | Roy Otten Memorial Airfield to Los Alamos |
| Capital Region International (LAN) | Lansing | MI | Roy Otten Memorial Airfield to Capital Region International |
| Laramie Regional (LAR) | Laramie | WY | Roy Otten Memorial Airfield to Laramie Regional |
| Fort Sill Regional Lawton (LAW) | Lawton | OK | Roy Otten Memorial Airfield to Fort Sill Regional Lawton |
| Lubbock Preston Smith International (LBB) | Lubbock | TX | Roy Otten Memorial Airfield to Lubbock Preston Smith International |
| Arnold Palmer Regional (LBE) | Latrobe | PA | Roy Otten Memorial Airfield to Arnold Palmer Regional |
| North Platte Regional/Lee Bird Field (LBF) | North Platte | NE | Roy Otten Memorial Airfield to North Platte Regional/Lee Bird Field |
| Liberal Mid-America Regional (LBL) | Liberal | KS | Roy Otten Memorial Airfield to Liberal Mid-America Regional |
| Lake Charles Regional (LCH) | Lake Charles | LA | Roy Otten Memorial Airfield to Lake Charles Regional |
| Rickenbacker International (LCK) | Columbus | OH | Roy Otten Memorial Airfield to Rickenbacker International |
| Mason County (LDM) | Ludington | MI | Roy Otten Memorial Airfield to Mason County |
| Lemmon Municipal (LEM) | Lemmon | SD | Roy Otten Memorial Airfield to Lemmon Municipal |
| Blue Grass (LEX) | Lexington | KY | Roy Otten Memorial Airfield to Blue Grass |
| Angelina County (LFK) | Lufkin | TX | Roy Otten Memorial Airfield to Angelina County |
| Lafayette Regional (LFT) | Lafayette | LA | Roy Otten Memorial Airfield to Lafayette Regional |
| Lagrange-Callaway (LGC) | Lagrange | GA | Roy Otten Memorial Airfield to Lagrange-Callaway |
| Limon Municipal (LIC) | Limon | CO | Roy Otten Memorial Airfield to Limon Municipal |
| Bill & Hillary Clinton National/Adams Field (LIT) | Little Rock | AR | Roy Otten Memorial Airfield to Bill & Hillary Clinton National/Adams Field |
| Midcoast Regional at Wright Army (LIY) | Hinesville | GA | Roy Otten Memorial Airfield to Midcoast Regional at Wright Army |
| Texas Gulf Coast Regional (LJN) | Angleton Lake Jackson | TX | Roy Otten Memorial Airfield to Texas Gulf Coast Regional |
| Louisville Winston County (LMS) | Louisville | MS | Roy Otten Memorial Airfield to Louisville Winston County |
| Lincoln Municipal (LNK) | Lincoln | NE | Roy Otten Memorial Airfield to Lincoln Municipal |
| Willoughby Lost Nation Municipal (LNN) | Willoughby | OH | Roy Otten Memorial Airfield to Willoughby Lost Nation Municipal |
| Lonesome Pine (LNP) | Wise | VA | Roy Otten Memorial Airfield to Lonesome Pine |
| Tri-County Regional (LNR) | Lone Rock | WI | Roy Otten Memorial Airfield to Tri-County Regional |
| Lewis University Chicago Romeoville (LOT) | Chicago/Romeoville | IL | Roy Otten Memorial Airfield to Lewis University Chicago Romeoville |
| Bowman Field (LOU) | Louisville | KY | Roy Otten Memorial Airfield to Bowman Field |
| London Corbin Magee Field (LOZ) | London | KY | Roy Otten Memorial Airfield to London Corbin Magee Field |
| La Porte Municipal (LPO) | La Porte | IN | Roy Otten Memorial Airfield to La Porte Municipal |
| Pickens County (LQK) | Pickens | SC | Roy Otten Memorial Airfield to Pickens County |
| Le Mars Municipal (LRJ) | Le Mars | IA | Roy Otten Memorial Airfield to Le Mars Municipal |
| La Crosse Regional (LSE) | La Crosse | WI | Roy Otten Memorial Airfield to La Crosse Regional |
| Lusk Municipal (LSK) | Lusk | WY | Roy Otten Memorial Airfield to Lusk Municipal |
| Cincinnati Municipal Lunken (LUK) | Cincinnati | OH | Roy Otten Memorial Airfield to Cincinnati Municipal Lunken |
| Hesler-Noble Field (LUL) | Laurel | MS | Roy Otten Memorial Airfield to Hesler-Noble Field |
| Las Vegas Municipal (LVS) | Las Vegas | NM | Roy Otten Memorial Airfield to Las Vegas Municipal |
| Greenbrier Valley (LWB) | Lewisburg | WV | Roy Otten Memorial Airfield to Greenbrier Valley |
| Lawrence Municipal (LWC) | Lawrence | KS | Roy Otten Memorial Airfield to Lawrence Municipal |
| Lawrenceville-Vincennes International (LWV) | Lawrenceville | IL | Roy Otten Memorial Airfield to Lawrenceville-Vincennes International |
| Jim Kelly Field (LXN) | Lexington | NE | Roy Otten Memorial Airfield to Jim Kelly Field |
| Lake County (LXV) | Leadville | CO | Roy Otten Memorial Airfield to Lake County |
| Lynchburg Regional/Preston Glenn Field (LYH) | Lynchburg | VA | Roy Otten Memorial Airfield to Lynchburg Regional/Preston Glenn Field |
| Lyons-Rice County Muni (LYO) | Lyons | KS | Roy Otten Memorial Airfield to Lyons-Rice County Muni |
| Ely Municipal (LYU) | Ely | MN | Roy Otten Memorial Airfield to Ely Municipal |
| Quentin Aanenson Field (LYV) | Luverne | MN | Roy Otten Memorial Airfield to Quentin Aanenson Field |
| Briscoe Field/Gwinnett County (LZU) | Lawrenceville | GA | Roy Otten Memorial Airfield to Briscoe Field/Gwinnett County |
| Macon Downtown (MAC) | Macon | GA | Roy Otten Memorial Airfield to Macon Downtown |
| Midland International Air and Space Port (MAF) | Midland | TX | Roy Otten Memorial Airfield to Midland International Air and Space Port |
| Malden Regional (MAW) | Malden | MO | Roy Otten Memorial Airfield to Malden Regional |
| Mobridge Municipal (MBG) | Mobridge | SD | Roy Otten Memorial Airfield to Mobridge Municipal |
| Manistee County-Blacker (MBL) | Manistee | MI | Roy Otten Memorial Airfield to Manistee County-Blacker |
| Mbs International (MBS) | Saginaw | MI | Roy Otten Memorial Airfield to Mbs International |
| McComb-Pike County/John E Lewis Field (MCB) | Mc Comb | MS | Roy Otten Memorial Airfield to McComb-Pike County/John E Lewis Field |
| Mackinac Island (MCD) | Mackinac Island | MI | Roy Otten Memorial Airfield to Mackinac Island |
| Kansas City International (MCI) | Kansas City | MO | Roy Otten Memorial Airfield to Kansas City International |
| Mccook Ben Nelson Regional (MCK) | Mc Cook | NE | Roy Otten Memorial Airfield to Mccook Ben Nelson Regional |
| Middle Georgia Regional (MCN) | Macon | GA | Roy Otten Memorial Airfield to Middle Georgia Regional |
| Mason City Municipal (MCW) | Mason City | IA | Roy Otten Memorial Airfield to Mason City Municipal |
| Midland Airpark (MDD) | Midland | TX | Roy Otten Memorial Airfield to Midland Airpark |
| Taylor County (MDF) | Medford | WI | Roy Otten Memorial Airfield to Taylor County |
| Southern Illinois (MDH) | Carbondale/Murphysboro | IL | Roy Otten Memorial Airfield to Southern Illinois |
| Madison Municipal (MDN) | Madison | IN | Roy Otten Memorial Airfield to Madison Municipal |
| Chicago Midway International (MDW) | Chicago | IL | Roy Otten Memorial Airfield to Chicago Midway International |
| Meridian/Key Field (MEI) | Meridian | MS | Roy Otten Memorial Airfield to Meridian/Key Field |
| Port Meadville (MEJ) | Meadville | PA | Roy Otten Memorial Airfield to Port Meadville |
| Memphis International (MEM) | Memphis | TN | Roy Otten Memorial Airfield to Memphis International |
| Mansfield Lahm Regional (MFD) | Mansfield | OH | Roy Otten Memorial Airfield to Mansfield Lahm Regional |
| Marshfield Municipal (MFI) | Marshfield | WI | Roy Otten Memorial Airfield to Marshfield Municipal |
| Michigan City Municipal-Phillips Field (MGC) | Michigan City | IN | Roy Otten Memorial Airfield to Michigan City Municipal-Phillips Field |
| Montgomery Regional/Dannelly Field (MGM) | Montgomery | AL | Roy Otten Memorial Airfield to Montgomery Regional/Dannelly Field |
| Moultrie Municipal (MGR) | Moultrie | GA | Roy Otten Memorial Airfield to Moultrie Municipal |
| Morgantown Municipal Walter L Bill Hart Field (MGW) | Morgantown | WV | Roy Otten Memorial Airfield to Morgantown Municipal Walter L Bill Hart Field |
| Dayton-Wright Brothers (MGY) | Dayton | OH | Roy Otten Memorial Airfield to Dayton-Wright Brothers |
| Mitchell Municipal (MHE) | Mitchell | SD | Roy Otten Memorial Airfield to Mitchell Municipal |
| Manhattan Regional (MHK) | Manhattan | KS | Roy Otten Memorial Airfield to Manhattan Regional |
| Crystal (MIC) | Minneapolis | MN | Roy Otten Memorial Airfield to Crystal |
| Delaware County Regional (MIE) | Muncie | IN | Roy Otten Memorial Airfield to Delaware County Regional |
| Roy Hurd Memorial (MIF) | Monahans | TX | Roy Otten Memorial Airfield to Roy Hurd Memorial |
| Miami Regional (MIO) | Miami | OK | Roy Otten Memorial Airfield to Miami Regional |
| Omaha Millard (MIQ) | Omaha | NE | Roy Otten Memorial Airfield to Omaha Millard |
| Marshalltown Municipal (MIW) | Marshalltown | IA | Roy Otten Memorial Airfield to Marshalltown Municipal |
| Jackson Municipal (MJQ) | Jackson | MN | Roy Otten Memorial Airfield to Jackson Municipal |
| Charles B Wheeler Downtown (MKC) | Kansas City | MO | Roy Otten Memorial Airfield to Charles B Wheeler Downtown |
| Milwaukee Mitchell International (MKE) | Milwaukee | WI | Roy Otten Memorial Airfield to Milwaukee Mitchell International |
| Muskegon County (MKG) | Muskegon | MI | Roy Otten Memorial Airfield to Muskegon County |
| Mckellar Sipes Regional (MKL) | Jackson | TN | Roy Otten Memorial Airfield to Mckellar Sipes Regional |
| Muskogee-Davis Regional (MKO) | Muskogee | OK | Roy Otten Memorial Airfield to Muskogee-Davis Regional |
| Mankato Regional (MKT) | Mankato | MN | Roy Otten Memorial Airfield to Mankato Regional |
| Mcalester Regional (MLC) | Mc Alester | OK | Roy Otten Memorial Airfield to Mcalester Regional |
| Quad City International (MLI) | Moline | IL | Roy Otten Memorial Airfield to Quad City International |
| Baldwin County Regional (MLJ) | Milledgeville | GA | Roy Otten Memorial Airfield to Baldwin County Regional |
| Monroe Regional (MLU) | Monroe | LA | Roy Otten Memorial Airfield to Monroe Regional |
| Mcminn County (MMI) | Athens | TN | Roy Otten Memorial Airfield to Mcminn County |
| Southwest Minnesota Regional Marshall/Ryan Field (MML) | Marshall | MN | Roy Otten Memorial Airfield to Southwest Minnesota Regional Marshall/Ryan Field |
| Marks/Selfs (MMS) | Marks | MS | Roy Otten Memorial Airfield to Marks/Selfs |
| Menominee-Marinette Twin County (MNM) | Menominee | MI | Roy Otten Memorial Airfield to Menominee-Marinette Twin County |
| Marion Municipal (MNN) | Marion | OH | Roy Otten Memorial Airfield to Marion Municipal |
| Mobile Regional (MOB) | Mobile | AL | Roy Otten Memorial Airfield to Mobile Regional |
| Mount Pleasant Municipal (MOP) | Mount Pleasant | MI | Roy Otten Memorial Airfield to Mount Pleasant Municipal |
| Moore-Murrell (MOR) | Morristown | TN | Roy Otten Memorial Airfield to Moore-Murrell |
| Minot International (MOT) | Minot | ND | Roy Otten Memorial Airfield to Minot International |
| Morris Municipal/Charlie Schmidt Field (MOX) | Morris | MN | Roy Otten Memorial Airfield to Morris Municipal/Charlie Schmidt Field |
| Petit Jean Park (MPJ) | Morrilton | AR | Roy Otten Memorial Airfield to Petit Jean Park |
| Mcpherson (MPR) | McPherson | KS | Roy Otten Memorial Airfield to Mcpherson |
| Mount Pleasant Regional (MPS) | Mount Pleasant | TX | Roy Otten Memorial Airfield to Mount Pleasant Regional |
| Mount Pleasant Municipal (MPZ) | Mount Pleasant | IA | Roy Otten Memorial Airfield to Mount Pleasant Municipal |
| Macomb Municipal (MQB) | Macomb | IL | Roy Otten Memorial Airfield to Macomb Municipal |
| Sawyer International (MQT) | Marquette | MI | Roy Otten Memorial Airfield to Sawyer International |
| Telfair-Wheeler (MQW) | Mc Rae | GA | Roy Otten Memorial Airfield to Telfair-Wheeler |
| Smyrna (MQY) | Smyrna | TN | Roy Otten Memorial Airfield to Smyrna |
| Eastern West Virginia Regional/Shepherd Field (MRB) | Martinsburg | WV | Roy Otten Memorial Airfield to Eastern West Virginia Regional/Shepherd Field |
| Maury County (MRC) | Columbia | TN | Roy Otten Memorial Airfield to Maury County |
| Foothills Regional (MRN) | Morganton | NC | Roy Otten Memorial Airfield to Foothills Regional |
| Northwest Alabama Regional (MSL) | Muscle Shoals | AL | Roy Otten Memorial Airfield to Northwest Alabama Regional |
| Truax Field/Dane County Regional (MSN) | Madison | WI | Roy Otten Memorial Airfield to Truax Field/Dane County Regional |
| Minneapolis St Paul International/Wold-Chamberlain (MSP) | Minneapolis | MN | Roy Otten Memorial Airfield to Minneapolis St Paul International/Wold-Chamberlain |
| Louis Armstrong New Orleans International (MSY) | New Orleans | LA | Roy Otten Memorial Airfield to Louis Armstrong New Orleans International |
| Coles County Memorial (MTO) | Mattoon/Charleston | IL | Roy Otten Memorial Airfield to Coles County Memorial |
| Manitowoc County (MTW) | Manitowoc | WI | Roy Otten Memorial Airfield to Manitowoc County |
| Spence (MUL) | Moultrie | GA | Roy Otten Memorial Airfield to Spence |
| Muscatine Municipal (MUT) | Muscatine | IA | Roy Otten Memorial Airfield to Muscatine Municipal |
| Monroe County Aeroplex (MVC) | Monroeville | AL | Roy Otten Memorial Airfield to Monroe County Aeroplex |
| Montevideo-Chippewa County (MVE) | Montevideo | MN | Roy Otten Memorial Airfield to Montevideo-Chippewa County |
| Mount Vernon (MVN) | Mount Vernon | IL | Roy Otten Memorial Airfield to Mount Vernon |
| Williamson County Rgnl (MWA) | Marion | IL | Roy Otten Memorial Airfield to Williamson County Rgnl |
| Lawrence J Timmerman (MWC) | Milwaukee | WI | Roy Otten Memorial Airfield to Lawrence J Timmerman |
| Mineral Wells (MWL) | Mineral Wells | TX | Roy Otten Memorial Airfield to Mineral Wells |
| Windom Municipal (MWM) | Windom | MN | Roy Otten Memorial Airfield to Windom Municipal |
| Middletown Regional - Hook Field (MWO) | Middletown | OH | Roy Otten Memorial Airfield to Middletown Regional - Hook Field |
| Manila Municipal (MXA) | Manila | AR | Roy Otten Memorial Airfield to Manila Municipal |
| Laurinburg-Maxton (MXE) | Maxton | NC | Roy Otten Memorial Airfield to Laurinburg-Maxton |
| Monticello Regional (MXO) | Monticello | IA | Roy Otten Memorial Airfield to Monticello Regional |
| Marion Municipal (MZZ) | Marion | IN | Roy Otten Memorial Airfield to Marion Municipal |
| Lakefront (NEW) | New Orleans | LA | Roy Otten Memorial Airfield to Lakefront |
| Beeville Municipal (NIR) | Beeville | TX | Roy Otten Memorial Airfield to Beeville Municipal |
| Jerry Tyler Memorial (NLE) | Niles | MI | Roy Otten Memorial Airfield to Jerry Tyler Memorial |
| Millington Regional Jetport (NQA) | Millington | TN | |
