| Lehigh Valley International (ABE) | Allentown | PA | Arnprior Municipal to Lehigh Valley International |
| Aberdeen Regional (ABR) | Aberdeen | SD | Arnprior Municipal to Aberdeen Regional |
| Southwest Georgia Regional (ABY) | Albany | GA | Arnprior Municipal to Southwest Georgia Regional |
| Antrim County (ACB) | Bellaire | MI | Arnprior Municipal to Antrim County |
| Nantucket Memorial (ACK) | Nantucket | MA | Arnprior Municipal to Nantucket Memorial |
| Atlantic City International (ACY) | Atlantic City | NJ | Arnprior Municipal to Atlantic City International |
| Lenawee County (ADG) | Adrian | MI | Arnprior Municipal to Lenawee County |
| Robert F Swinnie (ADR) | Andrews | SC | Arnprior Municipal to Robert F Swinnie |
| Albert Lea Municipal (AEL) | Albert Lea | MN | Arnprior Municipal to Albert Lea Municipal |
| Allegheny County (AGC) | Pittsburgh | PA | Arnprior Municipal to Allegheny County |
| Augusta Regional/Bush Field (AGS) | Augusta | GA | Arnprior Municipal to Augusta Regional/Bush Field |
| Amery Municipal (AHH) | Amery | WI | Arnprior Municipal to Amery Municipal |
| Athens/Ben Epps (AHN) | Athens | GA | Arnprior Municipal to Athens/Ben Epps |
| Anderson Municipal-Darlington Field (AID) | Anderson | IN | Arnprior Municipal to Anderson Municipal-Darlington Field |
| Aiken Regional (AIK) | Aiken | SC | Arnprior Municipal to Aiken Regional |
| Atlantic Municipal (AIO) | Atlantic | IA | Arnprior Municipal to Atlantic Municipal |
| George Downer (AIV) | Aliceville | AL | Arnprior Municipal to George Downer |
| Lee C Fine Memorial (AIZ) | KAISER/LAKE OZARK | MO | Arnprior Municipal to Lee C Fine Memorial |
| Akron Fulton International (AKC) | Akron | OH | Arnprior Municipal to Akron Fulton International |
| Albany International (ALB) | Albany | NY | Arnprior Municipal to Albany International |
| St Louis Regional (ALN) | Alton | IL | Arnprior Municipal to St Louis Regional |
| Waterloo Regional (ALO) | Waterloo | IA | Arnprior Municipal to Waterloo Regional |
| Thomas C Russell Field (ALX) | Alexander City | AL | Arnprior Municipal to Thomas C Russell Field |
| Gratiot Community (AMN) | Alma | MI | Arnprior Municipal to Gratiot Community |
| Ames Municipal (AMW) | Ames | IA | Arnprior Municipal to Ames Municipal |
| Anniston Regional (ANB) | Anniston | AL | Arnprior Municipal to Anniston Regional |
| Anderson Regional (AND) | Anderson | SC | Arnprior Municipal to Anderson Regional |
| Tri-State Steuben County (ANQ) | Angola | IN | Arnprior Municipal to Tri-State Steuben County |
| Lima Allen County (AOH) | Lima | OH | Arnprior Municipal to Lima Allen County |
| Altoona/Blair County (AOO) | Altoona | PA | Arnprior Municipal to Altoona/Blair County |
| Alpena County Regional (APN) | Alpena | MI | Arnprior Municipal to Alpena County Regional |
| Marion County-Brown Field (APT) | Jasper | TN | Arnprior Municipal to Marion County-Brown Field |
| Ann Arbor Municipal (ARB) | Ann Arbor | MI | Arnprior Municipal to Ann Arbor Municipal |
| Walnut Ridge Regional (ARG) | Walnut Ridge | AR | Arnprior Municipal to Walnut Ridge Regional |
| Lakeland/Noble F. Lee Memorial Field (ARV) | Minocqua | WI | Arnprior Municipal to Lakeland/Noble F. Lee Memorial Field |
| Nashua-Boire Field (ASH) | Nashua | NH | Arnprior Municipal to Nashua-Boire Field |
| Talladega Municipal (ASN) | Talladega | AL | Arnprior Municipal to Talladega Municipal |
| John F Kennedy Memorial (ASX) | Ashland | WI | Arnprior Municipal to John F Kennedy Memorial |
| Ashley Municipal (ASY) | Ashley | ND | Arnprior Municipal to Ashley Municipal |
| Hartsfield Jackson Atlanta International (ATL) | Atlanta | GA | Arnprior Municipal to Hartsfield Jackson Atlanta International |
| Gordon K Bush Ohio University (ATO) | Athens/Albany | OH | Arnprior Municipal to Gordon K Bush Ohio University |
| Appleton International (ATW) | Appleton | WI | Arnprior Municipal to Appleton International |
| Watertown Regional (ATY) | Watertown | SD | Arnprior Municipal to Watertown Regional |
| Augusta State (AUG) | Augusta | ME | Arnprior Municipal to Augusta State |
| Austin Municipal (AUM) | Austin | MN | Arnprior Municipal to Austin Municipal |
| Auburn University Regional (AUO) | Auburn | AL | Arnprior Municipal to Auburn University Regional |
| Wausau Downtown (AUW) | Wausau | WI | Arnprior Municipal to Wausau Downtown |
| Chicago/Aurora Municipal (AUZ) | Chicago | IL | Arnprior Municipal to Chicago/Aurora Municipal |
| Asheville Regional (AVL) | Asheville | NC | Arnprior Municipal to Asheville Regional |
| Wilkes-Barre/Scranton International (AVP) | Scranton | PA | Arnprior Municipal to Wilkes-Barre/Scranton International |
| West Memphis Municipal (AWM) | West Memphis | AR | Arnprior Municipal to West Memphis Municipal |
| Algona Municipal (AXG) | Algona | IA | Arnprior Municipal to Algona Municipal |
| Chandler Field (AXN) | Alexandria | MN | Arnprior Municipal to Chandler Field |
| Auglaize County Neil Armstrong (AXV) | Wapakoneta | OH | Arnprior Municipal to Auglaize County Neil Armstrong |
| Waycross-Ware County (AYS) | Waycross | GA | Arnprior Municipal to Waycross-Ware County |
| Kalamazoo/Battle Creek International (AZO) | Kalamazoo | MI | Arnprior Municipal to Kalamazoo/Battle Creek International |
| Barnes Municipal (BAF) | Westfield | MA | Arnprior Municipal to Barnes Municipal |
| Benson Municipal (BBB) | Benson | MN | Arnprior Municipal to Benson Municipal |
| Wings Field (BBX) | Philadelphia | PA | Arnprior Municipal to Wings Field |
| Virginia Tech Montgomery Executive (BCB) | Blacksburg | VA | Arnprior Municipal to Virginia Tech Montgomery Executive |
| Baudette International (BDE) | Baudette | MN | Arnprior Municipal to Baudette International |
| Bradley International (BDL) | Windsor Locks | CT | Arnprior Municipal to Bradley International |
| Igor I Sikorsky Memorial (BDR) | Bridgeport | CT | Arnprior Municipal to Igor I Sikorsky Memorial |
| Laurence G Hanscom Field (BED) | Bedford | MA | Arnprior Municipal to Laurence G Hanscom Field |
| Southwest Michigan Regional (BEH) | Benton Harbor | MI | Arnprior Municipal to Southwest Michigan Regional |
| Bradford Regional (BFD) | Bradford | PA | Arnprior Municipal to Bradford Regional |
| Beaver County (BFP) | Beaver Falls | PA | Arnprior Municipal to Beaver County |
| Virgil I Grissom Municipal (BFR) | Bedford | IN | Arnprior Municipal to Virgil I Grissom Municipal |
| Beaufort County (BFT) | Beaufort | SC | Arnprior Municipal to Beaufort County |
| Decatur County Industrial Air Park (BGE) | Bainbridge | GA | Arnprior Municipal to Decatur County Industrial Air Park |
| Greater Binghamton Edwin A Link Field (BGM) | Binghamton | NY | Arnprior Municipal to Greater Binghamton Edwin A Link Field |
| Bangor International (BGR) | Bangor | ME | Arnprior Municipal to Bangor International |
| Hancock County-Bar Harbor (BHB) | Bar Harbor | ME | Arnprior Municipal to Hancock County-Bar Harbor |
| Birmingham-Shuttlesworth International (BHM) | Birmingham | AL | Arnprior Municipal to Birmingham-Shuttlesworth International |
| Beatrice Municipal (BIE) | Beatrice | NE | Arnprior Municipal to Beatrice Municipal |
| Bemidji Regional (BJI) | Bemidji | MN | Arnprior Municipal to Bemidji Regional |
| Wayne County (BJJ) | Wooster | OH | Arnprior Municipal to Wayne County |
| Branson (BKG) | Branson | MO | Arnprior Municipal to Branson |
| Burke Lakefront (BKL) | Cleveland | OH | Arnprior Municipal to Burke Lakefront |
| Allen C Perkinson Blackstone Army Air Field (BKT) | Blackstone | VA | Arnprior Municipal to Allen C Perkinson Blackstone Army Air Field |
| Raleigh County Memorial (BKW) | Beckley | WV | Arnprior Municipal to Raleigh County Memorial |
| Brookings Regional (BKX) | Brookings | SD | Arnprior Municipal to Brookings Regional |
| Mercer County (BLF) | Bluefield | WV | Arnprior Municipal to Mercer County |
| Monmouth Executive (BLM) | Belmar | NJ | Arnprior Municipal to Monmouth Executive |
| MidAmerica St Louis Scott AFB (BLV) | Belleville | IL | Arnprior Municipal to MidAmerica St Louis Scott AFB |
| Monroe County (BMG) | Bloomington | IN | Arnprior Municipal to Monroe County |
| Central Illinois Regional at Bloomington Normal (BMI) | Bloomington | IL | Arnprior Municipal to Central Illinois Regional at Bloomington Normal |
| Berlin Regional (BML) | Berlin | NH | Arnprior Municipal to Berlin Regional |
| Nashville International (BNA) | Nashville | TN | Arnprior Municipal to Nashville International |
| Barnwell Regional (BNL) | Barnwell | SC | Arnprior Municipal to Barnwell Regional |
| Boone Municipal (BNW) | Boone | IA | Arnprior Municipal to Boone Municipal |
| Boston Logan International (BOS) | Boston | MA | Arnprior Municipal to Boston Logan International |
| Brunswick Golden Isles (BQK) | Brunswick | GA | Arnprior Municipal to Brunswick Golden Isles |
| Brainerd Lakes Regional (BRD) | Brainerd | MN | Arnprior Municipal to Brainerd Lakes Regional |
| Southeast Iowa Regional (BRL) | Burlington | IA | Arnprior Municipal to Southeast Iowa Regional |
| Samuels Field (BRY) | Bardstown | KY | Arnprior Municipal to Samuels Field |
| Battle Creek Executive (BTL) | Battle Creek | MI | Arnprior Municipal to Battle Creek Executive |
| Marlboro County Jetport - H.E. Avent Field (BTN) | Bennettsville | SC | Arnprior Municipal to Marlboro County Jetport - H.E. Avent Field |
| Pittsburgh/Butler Regional Airport (BTP) | Butler | PA | Arnprior Municipal to Pittsburgh/Butler Regional Airport |
| Burlington International (BTV) | Burlington | VT | Arnprior Municipal to Burlington International |
| Buffalo Niagara International (BUF) | Buffalo | NY | Arnprior Municipal to Buffalo Niagara International |
| Butler Memorial (BUM) | Butler | MO | Arnprior Municipal to Butler Memorial |
| Batesville Regional (BVX) | Batesville | AR | Arnprior Municipal to Batesville Regional |
| Beverly Regional (BVY) | Beverly | MA | Arnprior Municipal to Beverly Regional |
| Bowling Green Warren County Regional (BWG) | Bowling Green | KY | Arnprior Municipal to Bowling Green Warren County Regional |
| Baltimore/Washington Intl Thurgood Marshall (BWI) | Baltimore | MD | Arnprior Municipal to Baltimore/Washington Intl Thurgood Marshall |
| Arkansas International (BYH) | Blytheville | AR | Arnprior Municipal to Arkansas International |
| Wexford County (CAD) | Cadillac | MI | Arnprior Municipal to Wexford County |
| Columbia Metropolitan (CAE) | Columbia | SC | Arnprior Municipal to Columbia Metropolitan |
| Akron/Canton Regional (CAK) | Akron | OH | Arnprior Municipal to Akron/Canton Regional |
| Caribou Municipal (CAR) | Caribou | ME | Arnprior Municipal to Caribou Municipal |
| Greater Cumberland Regional (CBE) | Cumberland | MD | Arnprior Municipal to Greater Cumberland Regional |
| Council Bluffs Municipal (CBF) | Council Bluffs | IA | Arnprior Municipal to Council Bluffs Municipal |
| Clinton Municipal (CCA) | Clinton | AR | Arnprior Municipal to Clinton Municipal |
| Northeast Iowa Regional (CCY) | Charles City | IA | Arnprior Municipal to Northeast Iowa Regional |
| Woodward Field (CDN) | Camden | SC | Arnprior Municipal to Woodward Field |
| Essex County (CDW) | Caldwell | NJ | Arnprior Municipal to Essex County |
| Juniper (CE3) | Juniper | NB | Arnprior Municipal to Juniper |
| Westover Arb/Westover Metropolitan (CEF) | Chicopee | MA | Arnprior Municipal to Westover Arb/Westover Metropolitan |
| Oconee County Regional (CEU) | Clemson | SC | Arnprior Municipal to Oconee County Regional |
| Mettel Field (CEV) | Connersville | IN | Arnprior Municipal to Mettel Field |
| Bob Sikes (CEW) | Crestview | FL | Arnprior Municipal to Bob Sikes |
| Kyle-Oakley Field (CEY) | Murray | KY | Arnprior Municipal to Kyle-Oakley Field |
| Coffeyville Municipal (CFV) | Coffeyville | KS | Arnprior Municipal to Coffeyville Municipal |
| Cambridge-Dorchester Regional (CGE) | Cambridge | MD | Arnprior Municipal to Cambridge-Dorchester Regional |
| Cuyahoga County (CGF) | Cleveland | OH | Arnprior Municipal to Cuyahoga County |
| Cape Girardeau Regional (CGI) | Cape Girardeau | MO | Arnprior Municipal to Cape Girardeau Regional |
| Lovell Field (CHA) | Chattanooga | TN | Arnprior Municipal to Lovell Field |
| Charlottesville Albemarle (CHO) | Charlottesville | VA | Arnprior Municipal to Charlottesville Albemarle |
| Charleston International (CHS) | Charleston | SC | Arnprior Municipal to Charleston International |
| The Eastern Iowa (CID) | Cedar Rapids | IA | Arnprior Municipal to The Eastern Iowa |
| Arthur N Neu (CIN) | Carroll | IA | Arnprior Municipal to Arthur N Neu |
| Cairo Regional (CIR) | Cairo | IL | Arnprior Municipal to Cairo Regional |
| Chippewa County International (CIU) | Sault Ste Marie | MI | Arnprior Municipal to Chippewa County International |
| North Central West Virginia (CKB) | Clarksburg | WV | Arnprior Municipal to North Central West Virginia |
| Fletcher Field (CKM) | Clarksdale | MS | Arnprior Municipal to Fletcher Field |
| Crookston Municipal Kirkwood Field (CKN) | Crookston | MN | Arnprior Municipal to Crookston Municipal Kirkwood Field |
| Outlaw Field (CKV) | Clarksville | TN | Arnprior Municipal to Outlaw Field |
| Cleveland/Hopkins International (CLE) | Cleveland | OH | Arnprior Municipal to Cleveland/Hopkins International |
| Clintonville Municipal (CLI) | Clintonville | WI | Arnprior Municipal to Clintonville Municipal |
| Charlotte Douglas International (CLT) | Charlotte | NC | Arnprior Municipal to Charlotte Douglas International |
| Columbus Municipal (CLU) | Columbus | IN | Arnprior Municipal to Columbus Municipal |
| John Glenn International (CMH) | Columbus | OH | Arnprior Municipal to John Glenn International |
| University of Illinois-Willard (CMI) | Champaign/Urbana | IL | Arnprior Municipal to University of Illinois-Willard |
| Houghton County Memorial (CMX) | Hancock | MI | Arnprior Municipal to Houghton County Memorial |
| Sparta/Fort Mccoy (CMY) | Sparta | WI | Arnprior Municipal to Sparta/Fort Mccoy |
| Claremont Municipal (CNH) | Claremont | NH | Arnprior Municipal to Claremont Municipal |
| Chanute Martin Johnson (CNU) | Chanute | KS | Arnprior Municipal to Chanute Martin Johnson |
| Concord Municipal (CON) | Concord | NH | Arnprior Municipal to Concord Municipal |
| Columbia Regional (COU) | Columbia | MO | Arnprior Municipal to Columbia Regional |
| Exploitsvalley/Botwood (CP2) | Exploits Valley | New | Arnprior Municipal to Exploitsvalley/Botwood |
| St Louis Downtown (CPS) | Cahokia/St Louis | IL | Arnprior Municipal to St Louis Downtown |
| Debert (CQ3) | Debert | NS | Arnprior Municipal to Debert |
| Florenceville (CR3) | Florenceville | NB | Arnprior Municipal to Florenceville |
| Grand Strand North Myrtle Beach (CRE) | North Myrtle Beach | SC | Arnprior Municipal to Grand Strand North Myrtle Beach |
| Jacksonville Executive at Craig (CRG) | Jacksonville | FL | Arnprior Municipal to Jacksonville Executive at Craig |
| Yeager (CRW) | Charleston | WV | Arnprior Municipal to Yeager |
| Roscoe Turner (CRX) | Corinth | MS | Arnprior Municipal to Roscoe Turner |
| St Stephen (Giddens Memorial) (CS3) | St Stephen | NB | Arnprior Municipal to St Stephen (Giddens Memorial) |
| Chipman (CS4) | Chipman | NB | Arnprior Municipal to Chipman |
| Columbus Metropolitan (CSG) | Columbus | GA | Arnprior Municipal to Columbus Metropolitan |
| Creston Municipal (CSQ) | Creston | IA | Arnprior Municipal to Creston Municipal |
| Crossville Memorial/Whitson Field (CSV) | Crossville | TN | Arnprior Municipal to Crossville Memorial/Whitson Field |
| Chester County G O Carlson (CTH) | Coatesville | PA | Arnprior Municipal to Chester County G O Carlson |
| Canton Municipal (CTK) | Canton | SD | Arnprior Municipal to Canton Municipal |
| Cortland County-Chase Field (CTX) | Cortland | NY | Arnprior Municipal to Cortland County-Chase Field |
| Cross City (CTY) | Cross City | FL | Arnprior Municipal to Cross City |
| Clinton-Sampson County (CTZ) | Clinton | NC | Arnprior Municipal to Clinton-Sampson County |
| Jim Hamilton L.B. Owens (CUB) | Columbia | SC | Arnprior Municipal to Jim Hamilton L.B. Owens |
| Cincinnati Northern Kentucky International (CVG) | Cincinnati | OH | Arnprior Municipal to Cincinnati Northern Kentucky International |
| Kings County Municipal (CW3) | Waterville | NS | Arnprior Municipal to Kings County Municipal |
| Central Wisconsin (CWA) | Mosinee | WI | Arnprior Municipal to Central Wisconsin |
| Clinton Municipal (CWI) | Clinton | IA | Arnprior Municipal to Clinton Municipal |
| Clarenville (CZ3) | Clarenville | New | Arnprior Municipal to Clarenville |
| Burlington Executive (CZB) | Burlington | ON | Arnprior Municipal to Burlington Executive |
| St Andrews/Codroy Valley (DA5) | St Andrews | New | Arnprior Municipal to St Andrews/Codroy Valley |
| Daytona Beach International (DAB) | Daytona Beach | FL | Arnprior Municipal to Daytona Beach International |
| Danville Regional (DAN) | Danville | VA | Arnprior Municipal to Danville Regional |
| Dayton International James M Cox (DAY) | Dayton | OH | Arnprior Municipal to Dayton International James M Cox |
| Dublin W H Bud Barron (DBN) | Dublin | GA | Arnprior Municipal to Dublin W H Bud Barron |
| Dubuque Regional (DBQ) | Dubuque | IA | Arnprior Municipal to Dubuque Regional |
| Pryor Field Regional (DCU) | Decatur | AL | Arnprior Municipal to Pryor Field Regional |
| Decatur (DEC) | Decatur | IL | Arnprior Municipal to Decatur |
| Decorah Municipal (DEH) | Decorah | IA | Arnprior Municipal to Decorah Municipal |
| Coleman A Young Municipal (DET) | Detroit | MI | Arnprior Municipal to Coleman A Young Municipal |
| Defiance Memorial (DFI) | Defiance | OH | Arnprior Municipal to Defiance Memorial |
| Dothan Regional (DHN) | Dothan | AL | Arnprior Municipal to Dothan Regional |
| Clearwater (DJ4) | Clearwater | NB | Arnprior Municipal to Clearwater |
| Chautauqua County/Dunkirk (DKK) | Dunkirk | NY | Arnprior Municipal to Chautauqua County/Dunkirk |
| Duluth International (DLH) | Duluth | MN | Arnprior Municipal to Duluth International |
| Dillon County Airport (DLL) | Dillon | SD | Arnprior Municipal to Dillon County Airport |
| Sedalia Regional (DMO) | Sedalia | MO | Arnprior Municipal to Sedalia Regional |
| Daniel Field (DNL) | Augusta | GA | Arnprior Municipal to Daniel Field |
| Dalton Municipal (DNN) | Dalton | GA | Arnprior Municipal to Dalton Municipal |
| Denison Municipal (DNS) | Denison | IA | Arnprior Municipal to Denison Municipal |
| Vermilion Regional (DNV) | Danville | IL | Arnprior Municipal to Vermilion Regional |
| Dover AFB (DOV) | Dover | DE | Arnprior Municipal to Dover AFB |
| Dupage (DPA) | Chicago | IL | Arnprior Municipal to Dupage |
| Drummond Island (DRE) | Drummond Island | MI | Arnprior Municipal to Drummond Island |
| Des Moines International (DSM) | Des Moines | IA | Arnprior Municipal to Des Moines International |
| Dansville Municipal (DSV) | Dansville | NY | Arnprior Municipal to Dansville Municipal |
| Detroit Lakes-Wething Field (DTL) | Detroit Lakes | MN | Arnprior Municipal to Detroit Lakes-Wething Field |
| Detroit Metro Wayne County (DTW) | Detroit | MI | Arnprior Municipal to Detroit Metro Wayne County |
| Dunnville (DU9) | Dunnville | ON | Arnprior Municipal to Dunnville |
| Dubois Regional (DUJ) | DuBois | PA | Arnprior Municipal to Dubois Regional |
| Devils Lake Regional (DVL) | Devils Lake | ND | Arnprior Municipal to Devils Lake Regional |
| Davenport Municipal (DVN) | Davenport | IA | Arnprior Municipal to Davenport Municipal |
| Danbury Municipal (DXR) | Danbury | CT | Arnprior Municipal to Danbury Municipal |
| Fogo (DY3) | Fogo | New | Arnprior Municipal to Fogo |
| Doylestown (DYL) | Doylestown | PA | Arnprior Municipal to Doylestown |
| Chippewa Valley Regional (EAU) | Eau Claire | WI | Arnprior Municipal to Chippewa Valley Regional |
| Webster City Municipal (EBS) | Webster City | IA | Arnprior Municipal to Webster City Municipal |
| Iosco County (ECA) | East Tawas | MI | Arnprior Municipal to Iosco County |
| Elizabeth City Regional & Coast Guard Station (ECG) | Elizabeth City | NC | Arnprior Municipal to Elizabeth City Regional & Coast Guard Station |
| Northeastern Regional (EDE) | Edenton | NC | Arnprior Municipal to Northeastern Regional |
| Dilliant-Hopkins (EEN) | Keene | NH | Arnprior Municipal to Dilliant-Hopkins |
| Northeast Kingdom International (EFK) | Newport | VT | Arnprior Municipal to Northeast Kingdom International |
| Jefferson Municipal (EFW) | Jefferson | IA | Arnprior Municipal to Jefferson Municipal |
| Eagle River Union (EGV) | Eagle River | WI | Arnprior Municipal to Eagle River Union |
| Elkhart Municipal (EKI) | Elkhart | IN | Arnprior Municipal to Elkhart Municipal |
| Elkins/Randolph County (EKN) | Elkins | WV | Arnprior Municipal to Elkins/Randolph County |
| Addington Field (EKX) | Elizabethtown | KY | Arnprior Municipal to Addington Field |
| Elmira/Corning Regional (ELM) | Elmira | NY | Arnprior Municipal to Elmira/Corning Regional |
| Wellsville Municipal/Tarantine Field (ELZ) | Wellsville | NY | Arnprior Municipal to Wellsville Municipal/Tarantine Field |
| Emporia Municipal (EMP) | Emporia | KS | Arnprior Municipal to Emporia Municipal |
| Centralia Municipal (ENL) | Centralia | IL | Arnprior Municipal to Centralia Municipal |
| Kenosha Regional (ENW) | Kenosha | WI | Arnprior Municipal to Kenosha Regional |
| Keokuk Municipal (EOK) | Keokuk | IA | Arnprior Municipal to Keokuk Municipal |
| Neosho Hugh Robinson (EOS) | Neosho | MO | Arnprior Municipal to Neosho Hugh Robinson |
| Erie International/Tom Ridge Field (ERI) | Erie | PA | Arnprior Municipal to Erie International/Tom Ridge Field |
| Delta County (ESC) | Escanaba | MI | Arnprior Municipal to Delta County |
| Easton/Newnam Field (ESN) | Easton | MD | Arnprior Municipal to Easton/Newnam Field |
| Stroudsburg-Pocono (ESP) | East Stroudsburg | PA | Arnprior Municipal to Stroudsburg-Pocono |
| Estherville Municipal (EST) | Estherville | IA | Arnprior Municipal to Estherville Municipal |
| West Bend Municipal (ETB) | West Bend | WI | Arnprior Municipal to West Bend Municipal |
| Enterprise Municipal (ETS) | Enterprise | AL | Arnprior Municipal to Enterprise Municipal |
| Weedon Field (EUF) | Eufaula | AL | Arnprior Municipal to Weedon Field |
| Eveleth-Virginia Municipal (EVM) | Eveleth | MN | Arnprior Municipal to Eveleth-Virginia Municipal |
| Evansville Regional (EVV) | Evansville | IN | Arnprior Municipal to Evansville Regional |
| New Bedford Regional (EWB) | New Bedford | MA | Arnprior Municipal to New Bedford Regional |
| Coastal Carolina Regional (EWN) | New Bern | NC | Arnprior Municipal to Coastal Carolina Regional |
| Newark Liberty International (EWR) | Newark | NJ | Arnprior Municipal to Newark Liberty International |
| Farmington Regional (FAM) | Farmington | MO | Arnprior Municipal to Farmington Regional |
| Hector International Fargo (FAR) | Fargo | ND | Arnprior Municipal to Hector International Fargo |
| Fayetteville Regional/Grannis Field (FAY) | Fayetteville | NC | Arnprior Municipal to Fayetteville Regional/Grannis Field |
| Faribault Municipal (FBL) | Faribault | MN | Arnprior Municipal to Faribault Municipal |
| Fairbury Municipal (FBY) | Fairbury | NE | Arnprior Municipal to Fairbury Municipal |
| Flying Cloud (FCM) | Minneapolis | MN | Arnprior Municipal to Flying Cloud |
| Forrest City Municipal (FCY) | Forrest City | AR | Arnprior Municipal to Forrest City Municipal |
| Frederick Municipal (FDK) | Frederick | MD | Arnprior Municipal to Frederick Municipal |
| Findlay (FDY) | Findlay | OH | Arnprior Municipal to Findlay |
| Albertus (FEP) | Freeport | IL | Arnprior Municipal to Albertus |
| Fremont Municipal (FET) | Fremont | NE | Arnprior Municipal to Fremont Municipal |
| First Flight (FFA) | Kill Devil Hills | NC | Arnprior Municipal to First Flight |
| Fairfield Municipal (FFL) | Fairfield | IA | Arnprior Municipal to Fairfield Municipal |
| Fergus Falls Municipal-Einar Mickelson Field (FFM) | Fergus Falls | MN | Arnprior Municipal to Fergus Falls Municipal-Einar Mickelson Field |
| Capital City (FFT) | Frankfort | KY | Arnprior Municipal to Capital City |
| Fox Harbour (FH4) | Fox Harbour | NS | Arnprior Municipal to Fox Harbour |
| Venango Regional (FKL) | Franklin | PA | Arnprior Municipal to Venango Regional |
| Franklin Municipal-John Beverly Rose (FKN) | Franklin | VA | Arnprior Municipal to Franklin Municipal-John Beverly Rose |
| Fond Du Lac County (FLD) | Fond Du Lac | WI | Arnprior Municipal to Fond Du Lac County |
| Florence Regional (FLO) | Florence | SC | Arnprior Municipal to Florence Regional |
| Marion County Regional (FLP) | Flippin | AR | Arnprior Municipal to Marion County Regional |
| Sherman Army Airfield (FLV) | Fort Leavenworth | KS | Arnprior Municipal to Sherman Army Airfield |
| Fort Meade (Odenton) Tipton (FME) | Fort Meade Odenton | MD | Arnprior Municipal to Fort Meade (Odenton) Tipton |
| Fort Madison Municipal (FMS) | Fort Madison | IA | Arnprior Municipal to Fort Madison Municipal |
| Bishop International (FNT) | Flint | MI | Arnprior Municipal to Bishop International |
| Fort Dodge Regional (FOD) | Fort Dodge | IA | Arnprior Municipal to Fort Dodge Regional |
| Topeka Regional (FOE) | Topeka | KS | Arnprior Municipal to Topeka Regional |
| Francis S Gabreski (FOK) | Westhampton Beach | NY | Arnprior Municipal to Francis S Gabreski |
| Perry-Foley (FPY) | Perry | FL | Arnprior Municipal to Perry-Foley |
| Republic Long Island (FRG) | Farmingdale | NY | Arnprior Municipal to Republic Long Island |
| French Lick Municipal (FRH) | French Lick | IN | Arnprior Municipal to French Lick Municipal |
| Fairmont Municipal (FRM) | Fairmont | MN | Arnprior Municipal to Fairmont Municipal |
| Front Royal-Warren County (FRR) | Front Royal | VA | Arnprior Municipal to Front Royal-Warren County |
| Eastern Slopes Regional (FRY) | Fryeburg | ME | Arnprior Municipal to Eastern Slopes Regional |
| Sioux Falls Regional, Joe Foss Field (FSD) | Sioux Falls | SD | Arnprior Municipal to Sioux Falls Regional, Joe Foss Field |
| Fort Scott Municipal (FSK) | Fort Scott | KS | Arnprior Municipal to Fort Scott Municipal |
| Fulton County/Brown Field (FTY) | Atlanta | GA | Arnprior Municipal to Fulton County/Brown Field |
| Fort Wayne International (FWA) | Fort Wayne | IN | Arnprior Municipal to Fort Wayne International |
| Branson West Municipal - Emerson Field (FWB) | Branson West | MO | Arnprior Municipal to Branson West Municipal - Emerson Field |
| Forest City Municipal (FXY) | Forest City | IA | Arnprior Municipal to Forest City Municipal |
| Fayetteville Municipal (FYM) | Fayetteville | TN | Arnprior Municipal to Fayetteville Municipal |
| Drake Field (FYV) | Fayetteville | AR | Arnprior Municipal to Drake Field |
| Northeast Alabama Regional (GAD) | Gadsden | AL | Arnprior Municipal to Northeast Alabama Regional |
| Montgomery County Airpark (GAI) | Gaithersburg | MD | Arnprior Municipal to Montgomery County Airpark |
| Galesburg Municipal (GBG) | Galesburg | IL | Arnprior Municipal to Galesburg Municipal |
| Greeneville-Greene County Municipal (GCY) | Greeneville | TN | Arnprior Municipal to Greeneville-Greene County Municipal |
| Donaldson Field (GDC) | Greenville | SC | Arnprior Municipal to Donaldson Field |
| Gardner Municipal (GDM) | Gardner | MA | Arnprior Municipal to Gardner Municipal |
| Gladwin Zettel Memorial (GDW) | Gladwin | MI | Arnprior Municipal to Gladwin Zettel Memorial |
| Delaware Coastal (GED) | Georgetown | DE | Arnprior Municipal to Delaware Coastal |
| Grand Forks International (GFK) | Grand Forks | ND | Arnprior Municipal to Grand Forks International |
| Floyd Bennett Memorial (GFL) | Glens Falls | NY | Arnprior Municipal to Floyd Bennett Memorial |
| Georgetown County (GGE) | Georgetown | SC | Arnprior Municipal to Georgetown County |
| Centerville Municipal (GHM) | Centerville | TN | Arnprior Municipal to Centerville Municipal |
| Gatlinburg-Pigeon Forge (GKT) | Sevierville | TN | Arnprior Municipal to Gatlinburg-Pigeon Forge |
| Greenville Mid-Delta (GLH) | Greenville | MS | Arnprior Municipal to Greenville Mid-Delta |
| Gaylord Regional (GLR) | Gaylord | MI | Arnprior Municipal to Gaylord Regional |
| Glasgow Municipal (GLW) | Glasgow | KY | Arnprior Municipal to Glasgow Municipal |
| Greenville Downtown (GMU) | Greenville | SC | Arnprior Municipal to Greenville Downtown |
| Gainesville Regional (GNV) | Gainesville | FL | Arnprior Municipal to Gainesville Regional |
| Groton New London (GON) | Groton New London | CT | Arnprior Municipal to Groton New London |
| Grand Rapids/Itasca County-Gordon Newstrom Field (GPZ) | Grand Rapids | MN | Arnprior Municipal to Grand Rapids/Itasca County-Gordon Newstrom Field |
| Galion Municipal (GQQ) | Galion | OH | Arnprior Municipal to Galion Municipal |
| Austin Straubel International (GRB) | Green Bay | WI | Arnprior Municipal to Austin Straubel International |
| Greenwood County (GRD) | Greenwood | SC | Arnprior Municipal to Greenwood County |
| Greenville (GRE) | Greenville | IL | Arnprior Municipal to Greenville |
| Central Nebraska Regional (GRI) | Grand Island | NE | Arnprior Municipal to Central Nebraska Regional |
| Grand Marais/Cook County (GRM) | Grand Marais | MN | Arnprior Municipal to Grand Marais/Cook County |
| Gerald R Ford International (GRR) | Grand Rapids | MI | Arnprior Municipal to Gerald R Ford International |
| Goshen Municipal (GSH) | Goshen | IN | Arnprior Municipal to Goshen Municipal |
| Piedmont Triad International (GSO) | Greensboro | NC | Arnprior Municipal to Piedmont Triad International |
| Greenville Spartanburg International (GSP) | Greer | SC | Arnprior Municipal to Greenville Spartanburg International |
| Golden Triangle Regional (GTR) | Columbus | MS | Arnprior Municipal to Golden Triangle Regional |
| Gettysburg Regional (GTY) | Gettysburg | PA | Arnprior Municipal to Gettysburg Regional |
| Grissom Aeroplex/Arb (GUS) | Peru | IN | Arnprior Municipal to Grissom Aeroplex/Arb |
| Lee Gilmer Memorial (GVL) | Gainesville | GA | Arnprior Municipal to Lee Gilmer Memorial |
| Greenwood Leflore (GWO) | Greenwood | MS | Arnprior Municipal to Greenwood Leflore |
| Gary/Chicago International (GYY) | GARY | IN | Arnprior Municipal to Gary/Chicago International |
| Marion County-Rankin Fite (HAB) | Hamilton | AL | Arnprior Municipal to Marion County-Rankin Fite |
| Three Rivers Municipal Dr Haines (HAI) | Three Rivers | MI | Arnprior Municipal to Three Rivers Municipal Dr Haines |
| Butler County Regional-Hogan Field (HAO) | Hamilton | OH | Arnprior Municipal to Butler County Regional-Hogan Field |
| Capital City Harrisburg (HAR) | Harrisburg | PA | Arnprior Municipal to Capital City Harrisburg |
| Columbia County (HCC) | Hudson | NY | Arnprior Municipal to Columbia County |
| Cheraw Municipal/Lynch Bellinger Field (HCW) | Cheraw | SC | Arnprior Municipal to Cheraw Municipal/Lynch Bellinger Field |
| Thompson-Robbins (HEE) | Helena/West Helena | AR | Arnprior Municipal to Thompson-Robbins |
| Manassas Regional/Harry P Davis Field (HEF) | Manassas | VA | Arnprior Municipal to Manassas Regional/Harry P Davis Field |
| Hartford/Brainard (HFD) | Hartford | CT | Arnprior Municipal to Hartford/Brainard |
| Richard A Henson Field/Hagerstown Regional (HGR) | Hagerstown | MD | Arnprior Municipal to Richard A Henson Field/Hagerstown Regional |
| Hilton Head (HHH) | Hilton Head Island | SC | Arnprior Municipal to Hilton Head |
| Range Regional (HIB) | Hibbing | MN | Arnprior Municipal to Range Regional |
| Mount Washington Regional (HIE) | Whitefield | NH | Arnprior Municipal to Mount Washington Regional |
| Blytheville Municipal (HKA) | Blytheville | AR | Arnprior Municipal to Blytheville Municipal |
| Hickory Regional (HKY) | Hickory | NC | Arnprior Municipal to Hickory Regional |
| Wheeling Ohio County (HLG) | Wheeling | WV | Arnprior Municipal to Wheeling Ohio County |
| Huntingburg (HNB) | Huntingburg | IN | Arnprior Municipal to Huntingburg |
| Billy Mitchell (HNC) | Hatteras | NC | Arnprior Municipal to Billy Mitchell |
| Huron Regional (HON) | Huron | SD | Arnprior Municipal to Huron Regional |
| Westchester County (HPN) | White Plains | NY | Arnprior Municipal to Westchester County |
| Hampton Municipal (HPT) | Hampton | IA | Arnprior Municipal to Hampton Municipal |
| Boone County Regional (HRO) | Harrison | AR | Arnprior Municipal to Boone County Regional |
| Harrisburg-Raleigh (HSB) | Harrisburg | IL | Arnprior Municipal to Harrisburg-Raleigh |
| Ingalls Field (HSP) | Hot Springs | VA | Arnprior Municipal to Ingalls Field |
| Huntsville International/Carl T Jones Field (HSV) | Huntsville | AL | Arnprior Municipal to Huntsville International/Carl T Jones Field |
| Roscommon County - Blodgett Memorial (HTL) | Houghton Lake | MI | Arnprior Municipal to Roscommon County - Blodgett Memorial |
| East Hampton (JPX) | East Hampton | NY | Arnprior Municipal to East Hampton |
| Tri-State Milton J Ferguson Field (HTS) | Huntington | WV | Arnprior Municipal to Tri-State Milton J Ferguson Field |
| Humboldt Municipal (HUD) | Humboldt | IA | Arnprior Municipal to Humboldt Municipal |
| Terre Haute Regional (HUF) | Terre Haute | IN | Arnprior Municipal to Terre Haute Regional |
| Houlton International (HUL) | Houlton | ME | Arnprior Municipal to Houlton International |
| Tweed/New Haven (HVN) | New Haven | CT | Arnprior Municipal to Tweed/New Haven |
| Hartsville Regional (HVS) | Hartsville | SC | Arnprior Municipal to Hartsville Regional |
| Barnstable Municipal/Boardman-Polando Field (HYA) | Hyannis | MA | Arnprior Municipal to Barnstable Municipal/Boardman-Polando Field |
| Sawyer County (HYR) | Hayward | WI | Arnprior Municipal to Sawyer County |
| Hazleton Regional (HZL) | Hazleton | PA | Arnprior Municipal to Hazleton Regional |
| Washington Dulles International (IAD) | Washington | VA | Arnprior Municipal to Washington Dulles International |
| Niagara Falls International (IAG) | Niagara Falls | NY | Arnprior Municipal to Niagara Falls International |
| Schenck Field (ICL) | Clarinda | IA | Arnprior Municipal to Schenck Field |
| Ida Grove Municipal (IDG) | Ida Grove | IA | Arnprior Municipal to Ida Grove Municipal |
| Indiana County/Jimmy Stewart Field (IDI) | Indiana | PA | Arnprior Municipal to Indiana County/Jimmy Stewart Field |
| Iowa Falls Municipal (IFA) | Iowa Falls | IA | Arnprior Municipal to Iowa Falls Municipal |
| Jacksonville Municipal (IJX) | Jacksonville | IL | Arnprior Municipal to Jacksonville Municipal |
| Wilkes County (IKB) | N Wilkesboro | NC | Arnprior Municipal to Wilkes County |
| Greater Kankakee (IKK) | Kankakee | IL | Arnprior Municipal to Greater Kankakee |
| Wilmington/New Castle (ILG) | Wilmington | DE | Arnprior Municipal to Wilmington/New Castle |
| Willmar Municipal/John L Rice Field (ILL) | Willmar | MN | Arnprior Municipal to Willmar Municipal/John L Rice Field |
| Wilmington International (ILM) | Wilmington | NC | Arnprior Municipal to Wilmington International |
| Wilmington Airpark (ILN) | Wilmington | OH | Arnprior Municipal to Wilmington Airpark |
| Ford (IMT) | Iron Mountain | MI | Arnprior Municipal to Ford |
| Indianapolis International (IND) | Indianapolis | IN | Arnprior Municipal to Indianapolis International |
| Falls Intl-Einarson Field (INL) | International Falls | MN | Arnprior Municipal to Falls Intl-Einarson Field |
| Smith Reynolds (INT) | Winston-Salem | NC | Arnprior Municipal to Smith Reynolds |
| Iowa City Municipal (IOW) | Iowa City | IA | Arnprior Municipal to Iowa City Municipal |
| Williamsport Regional (IPT) | Williamsport | PA | Arnprior Municipal to Williamsport Regional |
| Kirksville Regional (IRK) | Kirksville | MO | Arnprior Municipal to Kirksville Regional |
| Kirsch Municipal (IRS) | Sturgis | MI | Arnprior Municipal to Kirsch Municipal |
| Kinston Regional Jetport Stallings Field (ISO) | Kinston | NC | Arnprior Municipal to Kinston Regional Jetport Stallings Field |
| Long Island Macarthur (ISP) | Islip | NY | Arnprior Municipal to Long Island Macarthur |
| Schoolcraft County (ISQ) | Manistique | MI | Arnprior Municipal to Schoolcraft County |
| Wiscasset (ISS) | Wiscasset | ME | Arnprior Municipal to Wiscasset |
| Alexander Field South Wood County (ISW) | Wisconsin Rapids | WI | Arnprior Municipal to Alexander Field South Wood County |
| Ithaca Tompkins Regional (ITH) | Ithaca | NY | Arnprior Municipal to Ithaca Tompkins Regional |
| Gogebic-Iron County (IWD) | Ironwood | MI | Arnprior Municipal to Gogebic-Iron County |
| Morden (JA3) | Morden | MB | Arnprior Municipal to Morden |
| Jacksonville International (JAX) | Jacksonville | FL | Arnprior Municipal to Jacksonville International |
| Steinbach (JB3) | Steinbach | MB | Arnprior Municipal to Steinbach |
| Jonesboro Municipal (JBR) | Jonesboro | AR | Arnprior Municipal to Jonesboro Municipal |
| New Century Aircenter (JCI) | Olathe | KS | Arnprior Municipal to New Century Aircenter |
| Jefferson City Memorial (JEF) | Jefferson City | MO | Arnprior Municipal to Jefferson City Memorial |
| New York/John F Kennedy International (JFK) | New York | NY | Arnprior Municipal to New York/John F Kennedy International |
| Northeast Ohio Regional (JFN) | Ashtabula | OH | Arnprior Municipal to Northeast Ohio Regional |
| Chautauqua County/Jamestown (JHW) | Jamestown | NY | Arnprior Municipal to Chautauqua County/Jamestown |
| Altona Municipal (JL6) | Altona | MB | Arnprior Municipal to Altona Municipal |
| Joplin Regional (JLN) | Joplin | MO | Arnprior Municipal to Joplin Regional |
| Jamestown Regional (JMS) | Jamestown | ND | Arnprior Municipal to Jamestown Regional |
| John Murtha Johnstown/Cambria County (JST) | Johnstown | PA | Arnprior Municipal to John Murtha Johnstown/Cambria County |
| Neepawa (JV5) | Neepawa | MB | Arnprior Municipal to Neepawa |
| Central Jersey Regional (JVI) | Manville | NJ | Arnprior Municipal to Central Jersey Regional |
| Souther Wisconsin Regional (JVL) | Janesville | WI | Arnprior Municipal to Souther Wisconsin Regional |
| Jackson County/Reynolds Field (JXN) | Jackson | MI | Arnprior Municipal to Jackson County/Reynolds Field |
| Williams County (K0G6) | Bryan | OH | Arnprior Municipal to Williams County |
| Finger Lakes Regional (K0G7) | Seneca Falls | NY | Arnprior Municipal to Finger Lakes Regional |
| Camden County (K19N) | Berlin | NJ | Arnprior Municipal to Camden County |
| Mansfield Municipal (K1B9) | Mansfield | MA | Arnprior Municipal to Mansfield Municipal |
| Wood County Regional (K1G0) | Bowling Green | OH | Arnprior Municipal to Wood County Regional |
| Kent State University (K1G3) | Kent | OH | Arnprior Municipal to Kent State University |
| Medina Municipal (K1G5) | Medina | OH | Arnprior Municipal to Medina Municipal |
| Creve Coeur (K1H0) | St Louis | MO | Arnprior Municipal to Creve Coeur |
| Effingham County Memorial (K1H2) | Effingham | IL | Arnprior Municipal to Effingham County Memorial |
| Kingston-Ulster (K20N) | Kingston | NY | Arnprior Municipal to Kingston-Ulster |
| Shelby County (K2H0) | Shelbyville | IL | Arnprior Municipal to Shelby County |
| Maryland (K2W5) | Indian Head | MD | Arnprior Municipal to Maryland |
| Eagles Nest (K31E) | West Creek | NJ | Arnprior Municipal to Eagles Nest |
| Delaware Airpark (K33N) | Dover/Cheswold | DE | Arnprior Municipal to Delaware Airpark |
| Lake In The Hills (K3CK) | Chicago | IL | Arnprior Municipal to Lake In The Hills |
| Greene County Regional (K3J7) | Greensboro | GA | Arnprior Municipal to Greene County Regional |
| Mount Hawley Auxiliary (K3MY) | Peoria | IL | Arnprior Municipal to Mount Hawley Auxiliary |
| Old Bridge (K3N6) | Old Bridge | NJ | Arnprior Municipal to Old Bridge |
| Scottsboro Municipal-Word Field (K4A6) | Scottsboro | AL | Arnprior Municipal to Scottsboro Municipal-Word Field |
| Ticonderoga Municipal (K4B6) | Ticonderoga | NY | Arnprior Municipal to Ticonderoga Municipal |
| Youngstown Elser Metro (K4G4) | Youngstown | OH | Arnprior Municipal to Youngstown Elser Metro |
| Saratoga County (K5B2) | Saratoga Springs | NY | Arnprior Municipal to Saratoga County |
| Odell Williamson Municipal (K60J) | Ocean Isle Beach | NC | Arnprior Municipal to Odell Williamson Municipal |
| Skaneateles (K6B9) | Skaneateles | NY | Arnprior Municipal to Skaneateles |
| Northampton (K7B2) | Northampton | MA | Arnprior Municipal to Northampton |
| Skylark Airpark (K7B6) | Warehouse Point | CT | Arnprior Municipal to Skylark Airpark |
| Paul C. Miller-Sparta (K8D4) | Sparta | MI | Arnprior Municipal to Paul C. Miller-Sparta |
| Anoka County-Blaine (Janes Field) (KANE) | Minneapolis | MN | Arnprior Municipal to Anoka County-Blaine (Janes Field) |
| Biddeford Municipal (KB19) | Biddeford | ME | Arnprior Municipal to Biddeford Municipal |
| Huron County Memorial (KBAX) | Bad Axe | MI | Arnprior Municipal to Huron County Memorial |
| Buffalo-Lancaster Regional (KBQR) | Lancaster | NY | Arnprior Municipal to Buffalo-Lancaster Regional |
| Belfast Municipal (KBST) | Belfast | ME | Arnprior Municipal to Belfast Municipal |
| Burlington Municipal (KBUU) | Burlington | WI | Arnprior Municipal to Burlington Municipal |
| Burlington-Alamance Regional (KBUY) | Burlington | NC | Arnprior Municipal to Burlington-Alamance Regional |
| Newnan Coweta County (KCCO) | Atlanta | GA | Arnprior Municipal to Newnan Coweta County |
| Cambridge Municipal (KCDI) | Cambridge | OH | Arnprior Municipal to Cambridge Municipal |
| Pennridge (KCKZ) | Perkasie | PA | Arnprior Municipal to Pennridge |
| Cherokee County Regional (KCNI) | Canton | GA | Arnprior Municipal to Cherokee County Regional |
| Chesapeake Regional (KCPK) | Norfolk | VA | Arnprior Municipal to Chesapeake Regional |
| Chatham Municipal (KCQX) | Chatham | MA | Arnprior Municipal to Chatham Municipal |
| West Georgia Regional - O V Gray Field (KCTJ) | Carrollton | GA | Arnprior Municipal to West Georgia Regional - O V Gray Field |
| Charlevoix Municipal (KCVX) | Charlevoix | MI | Arnprior Municipal to Charlevoix Municipal |
| Manitowish Waters (KD25) | Manitowish Waters | WI | Arnprior Municipal to Manitowish Waters |
| Skyhaven (KDAW) | Rochester | NH | Arnprior Municipal to Skyhaven |
| Chester Catawba Regional (KDCM) | Chester | SC | Arnprior Municipal to Chester Catawba Regional |
| Bennington/William H. Morse State (KDDH) | Bennington | VT | Arnprior Municipal to Bennington/William H. Morse State |
| Knoxville Downtown Island (KDKX) | Knoxville | TN | Arnprior Municipal to Knoxville Downtown Island |
| Carroll County Regional/Jack B Poage Field (KDMW) | Westminster | MD | Arnprior Municipal to Carroll County Regional/Jack B Poage Field |
| Kenansville/Duplin County (KDPL) | Kenansville | NC | Arnprior Municipal to Kenansville/Duplin County |
| Toledo Suburban (KDUH) | Lambertville | MI | Arnprior Municipal to Toledo Suburban |
| Mitchell Field Bessemer (KEKY) | Bessemer | AL | Arnprior Municipal to Mitchell Field Bessemer |
| Davidson County (KEXX) | Lexington | NC | Arnprior Municipal to Davidson County |
| Eagle Creek Airpark (KEYE) | Indianapolis | IN | Arnprior Municipal to Eagle Creek Airpark |
| Kewanee Municipal (KEZI) | Kewanee | IL | Arnprior Municipal to Kewanee Municipal |
| Atlanta Regional/Falcon Field (KFFC) | Atlanta | GA | Arnprior Municipal to Atlanta Regional/Falcon Field |
| Fernandina Beach Municipal (KFHB) | Fernandina Beach | FL | Arnprior Municipal to Fernandina Beach Municipal |
| Genesee County (KGVQ) | Batavia | NY | Arnprior Municipal to Genesee County |
| Hornell Municipal (KHTF) | Hornell | NY | Arnprior Municipal to Hornell Municipal |
| Ortner (KI64) | Wakeman | OH | Arnprior Municipal to Ortner |
| Breckinridge County (KI93) | Hardinsburg | KY | Arnprior Municipal to Breckinridge County |
| Canandaigua (KIUA) | Canandaigua | NY | Arnprior Municipal to Canandaigua |
| Wabash Municipal (KIWH) | Wabash | IN | Arnprior Municipal to Wabash Municipal |
| Williamsburg-Jamestown (KJGG) | Williamsburg | VA | Arnprior Municipal to Williamsburg-Jamestown |
| John C Tune (KJWN) | Nashville | TN | Arnprior Municipal to John C Tune |
| Leesburg Executive (KJYO) | Leesburg | VA | Arnprior Municipal to Leesburg Executive |
| Charleston Executive (KJZI) | Charleston | SC | Arnprior Municipal to Charleston Executive |
| Gene Snyder (KK62) | Falmouth | KY | Arnprior Municipal to Gene Snyder |
| Kentland Municipal (KKT) | Kentland | IN | Arnprior Municipal to Kentland Municipal |
| Mt Pleasant Regional-Faison Field (KLRO) | Mount Pleasant | SC | Arnprior Municipal to Mt Pleasant Regional-Faison Field |
| South Haven Area Regional (KLWA) | South Haven | MI | Arnprior Municipal to South Haven Area Regional |
| Lee's Summit Municipal (KLXT) | Lee's Summit | MO | Arnprior Municipal to Lee's Summit Municipal |
| General Dewitt Spain (KM01) | Memphis | TN | Arnprior Municipal to General Dewitt Spain |
| Harbor Springs (KMGN) | Harbor Springs | MI | Arnprior Municipal to Harbor Springs |
| Metter Municipal (KMHP) | Metter | GA | Arnprior Municipal to Metter Municipal |
| Mountain Empire (KMKJ) | Marion-Wythevil | VA | Arnprior Municipal to Mountain Empire |
| Indianapolis Regional (KMQJ) | Indianapolis | IN | Arnprior Municipal to Indianapolis Regional |
| Michael J. Smith Field (KMRH) | Beaufort | NC | Arnprior Municipal to Michael J. Smith Field |
| Bradford County (KN27) | Towanda | PA | Arnprior Municipal to Bradford County |
| Stormville (KN69) | Stormville | NY | Arnprior Municipal to Stormville |
| Joseph Y Resnick (KN89) | Ellenville | NY | Arnprior Municipal to Joseph Y Resnick |
| Kennett Memorial (KNT) | Kennett | MO | Arnprior Municipal to Kennett Memorial |
| Hanover County Municipal (KOFP) | Richmond | VA | Arnprior Municipal to Hanover County Municipal |
| Currituck County Regional (KONX) | Currituck | NC | Arnprior Municipal to Currituck County Regional |
| Detroit Grosse Ile Municipal (KONZ) | Detroit Grosse Ile | MI | Arnprior Municipal to Detroit Grosse Ile Municipal |
| Brandywine (KOQN) | West Chester | PA | Arnprior Municipal to Brandywine |
| Orr Regional (KORB) | Orr | MN | Arnprior Municipal to Orr Regional |
| Price County (KPBH) | Phillips | WI | Arnprior Municipal to Price County |
| Pike County-Hatcher Field (KPBX) | Pikeville | KY | Arnprior Municipal to Pike County-Hatcher Field |
| Penn Yan (KPEO) | Penn Yan | NY | Arnprior Municipal to Penn Yan |
| Platteville Municipal (KPVB) | Platteville | WI | Arnprior Municipal to Platteville Municipal |
| Erickson Municipal (KQ6) | Erickson | MB | Arnprior Municipal to Erickson Municipal |
| Stafford Regional (KRMN) | Stafford | VA | Arnprior Municipal to Stafford Regional |
| Cobb County International-McCollum Field (KRYY) | Atlanta | GA | Arnprior Municipal to Cobb County International-McCollum Field |
| Saline County Regional (KSUZ) | Benton | AR | Arnprior Municipal to Saline County Regional |
| Mason Jewett Field (KTEW) | Mason | MI | Arnprior Municipal to Mason Jewett Field |
| Centerville Municipal (KTVK) | Centerville | IA | Arnprior Municipal to Centerville Municipal |
| Indianapolis Executive (KTYQ) | Indianapolis | IN | Arnprior Municipal to Indianapolis Executive |
| Indianapolis Metropolitan (KUMP) | Indianapolis | IN | Arnprior Municipal to Indianapolis Metropolitan |
| Bentonville Municipal/Louise M Thaden Field (KVBT) | Bentonville | AR | Arnprior Municipal to Bentonville Municipal/Louise M Thaden Field |
| Hamilton Municipal (KVGC) | Hamilton | NY | Arnprior Municipal to Hamilton Municipal |
| Oakland/Troy (KVLL) | Troy | MI | Arnprior Municipal to Oakland/Troy |
| Washington Executive/Hyde Field (KW32) | Clinton | MD | Arnprior Municipal to Washington Executive/Hyde Field |
| Allentown Queen City Municipal (KXLL) | Allentown | PA | Arnprior Municipal to Allentown Queen City Municipal |
| Purdue University (LAF) | Lafayette | IN | Arnprior Municipal to Purdue University |
| Capital Region International (LAN) | Lansing | MI | Arnprior Municipal to Capital Region International |
| Arnold Palmer Regional (LBE) | Latrobe | PA | Arnprior Municipal to Arnold Palmer Regional |
| Lumberton Regional (LBT) | Lumberton | NC | Arnprior Municipal to Lumberton Regional |
| Laconia Municipal (LCI) | Laconia | NH | Arnprior Municipal to Laconia Municipal |
| Rickenbacker International (LCK) | Columbus | OH | Arnprior Municipal to Rickenbacker International |
| Linden (LDJ) | Linden | NJ | Arnprior Municipal to Linden |
| Mason County (LDM) | Ludington | MI | Arnprior Municipal to Mason County |
| Lebanon Municipal (LEB) | Lebanon | NH | Arnprior Municipal to Lebanon Municipal |
| Auburn/Lewiston Municipal (LEW) | Auburn/Lewiston | ME | Arnprior Municipal to Auburn/Lewiston Municipal |
| Blue Grass (LEX) | Lexington | KY | Arnprior Municipal to Blue Grass |
| Triangle North Executive (LFN) | Louisburg | NC | Arnprior Municipal to Triangle North Executive |
| La Guardia (LGA) | New York | NY | Arnprior Municipal to La Guardia |
| Lagrange-Callaway (LGC) | Lagrange | GA | Arnprior Municipal to Lagrange-Callaway |
| William T. Piper Memorial (LHV) | Lock Haven | PA | Arnprior Municipal to William T. Piper Memorial |
| Bill & Hillary Clinton National/Adams Field (LIT) | Little Rock | AR | Arnprior Municipal to Bill & Hillary Clinton National/Adams Field |
| Midcoast Regional at Wright Army (LIY) | Hinesville | GA | Arnprior Municipal to Midcoast Regional at Wright Army |
| Lake Placid (LKP) | Lake Placid | NY | Arnprior Municipal to Lake Placid |
| Caledonia County (LLX) | Lyndonville | VT | Arnprior Municipal to Caledonia County |
| South Jersey Regional (LLY) | Mount Holly | NJ | Arnprior Municipal to South Jersey Regional |
| Leamington (LM2) | Leamington | ON | Arnprior Municipal to Leamington |
| Louisville Winston County (LMS) | Louisville | MS | Arnprior Municipal to Louisville Winston County |
| Lincoln Municipal (LNK) | Lincoln | NE | Arnprior Municipal to Lincoln Municipal |
| Willoughby Lost Nation Municipal (LNN) | Willoughby | OH | Arnprior Municipal to Willoughby Lost Nation Municipal |
| Lonesome Pine (LNP) | Wise | VA | Arnprior Municipal to Lonesome Pine |
| Tri-County Regional (LNR) | Lone Rock | WI | Arnprior Municipal to Tri-County Regional |
| Lancaster (LNS) | Lancaster | PA | Arnprior Municipal to Lancaster |
| Lewis University Chicago Romeoville (LOT) | Chicago/Romeoville | IL | Arnprior Municipal to Lewis University Chicago Romeoville |
| Bowman Field (LOU) | Louisville | KY | Arnprior Municipal to Bowman Field |
| Louisa County/Freeman Field (LOW) | Louisa | VA | Arnprior Municipal to Louisa County/Freeman Field |
| London Corbin Magee Field (LOZ) | London | KY | Arnprior Municipal to London Corbin Magee Field |
| La Porte Municipal (LPO) | La Porte | IN | Arnprior Municipal to La Porte Municipal |
| Pickens County (LQK) | Pickens | SC | Arnprior Municipal to Pickens County |
| Le Mars Municipal (LRJ) | Le Mars | IA | Arnprior Municipal to Le Mars Municipal |
| La Crosse Regional (LSE) | La Crosse | WI | Arnprior Municipal to La Crosse Regional |
| St. Mary's County Regional (LTW) | Leonardtown | MD | Arnprior Municipal to St. Mary's County Regional |
| Cincinnati Municipal Lunken (LUK) | Cincinnati | OH | Arnprior Municipal to Cincinnati Municipal Lunken |
| Lawrenceville/Brunswick Municipal (LVL) | Lawrenceville | VA | Arnprior Municipal to Lawrenceville/Brunswick Municipal |
| Greenbrier Valley (LWB) | Lewisburg | WV | Arnprior Municipal to Greenbrier Valley |
| Lawrence Municipal (LWC) | Lawrence | KS | Arnprior Municipal to Lawrence Municipal |
| Lawrence Municipal (LWM) | Lawrence | MA | Arnprior Municipal to Lawrence Municipal |
| Lawrenceville-Vincennes International (LWV) | Lawrenceville | IL | Arnprior Municipal to Lawrenceville-Vincennes International |
| Lynchburg Regional/Preston Glenn Field (LYH) | Lynchburg | VA | Arnprior Municipal to Lynchburg Regional/Preston Glenn Field |
| Ely Municipal (LYU) | Ely | MN | Arnprior Municipal to Ely Municipal |
| Quentin Aanenson Field (LYV) | Luverne | MN | Arnprior Municipal to Quentin Aanenson Field |
| Briscoe Field/Gwinnett County (LZU) | Lawrenceville | GA | Arnprior Municipal to Briscoe Field/Gwinnett County |
| Macon Downtown (MAC) | Macon | GA | Arnprior Municipal to Macon Downtown |
| Malden Regional (MAW) | Malden | MO | Arnprior Municipal to Malden Regional |
| Manistee County-Blacker (MBL) | Manistee | MI | Arnprior Municipal to Manistee County-Blacker |
| Mbs International (MBS) | Saginaw | MI | Arnprior Municipal to Mbs International |
| Omar N Bradley (MBY) | Moberly | MO | Arnprior Municipal to Omar N Bradley |
| Mackinac Island (MCD) | Mackinac Island | MI | Arnprior Municipal to Mackinac Island |
| Kansas City International (MCI) | Kansas City | MO | Arnprior Municipal to Kansas City International |
| Middle Georgia Regional (MCN) | Macon | GA | Arnprior Municipal to Middle Georgia Regional |
| Mason City Municipal (MCW) | Mason City | IA | Arnprior Municipal to Mason City Municipal |
| Taylor County (MDF) | Medford | WI | Arnprior Municipal to Taylor County |
| Southern Illinois (MDH) | Carbondale/Murphysboro | IL | Arnprior Municipal to Southern Illinois |
| Madison Municipal (MDN) | Madison | IN | Arnprior Municipal to Madison Municipal |
| Harrisburg International (MDT) | Harrisburg | PA | Arnprior Municipal to Harrisburg International |
| Chicago Midway International (MDW) | Chicago | IL | Arnprior Municipal to Chicago Midway International |
| Meridian/Key Field (MEI) | Meridian | MS | Arnprior Municipal to Meridian/Key Field |
| Port Meadville (MEJ) | Meadville | PA | Arnprior Municipal to Port Meadville |
| Memphis International (MEM) | Memphis | TN | Arnprior Municipal to Memphis International |
| Dare County Regional (MEO) | Manteo | NC | Arnprior Municipal to Dare County Regional |
| Mansfield Lahm Regional (MFD) | Mansfield | OH | Arnprior Municipal to Mansfield Lahm Regional |
| Marshfield Municipal (MFI) | Marshfield | WI | Arnprior Municipal to Marshfield Municipal |
| Accomack County (MFV) | Melfa | VA | Arnprior Municipal to Accomack County |
| Michigan City Municipal-Phillips Field (MGC) | Michigan City | IN | Arnprior Municipal to Michigan City Municipal-Phillips Field |
| Orange County (MGJ) | Montgomery | NY | Arnprior Municipal to Orange County |
| Montgomery Regional/Dannelly Field (MGM) | Montgomery | AL | Arnprior Municipal to Montgomery Regional/Dannelly Field |
| Moultrie Municipal (MGR) | Moultrie | GA | Arnprior Municipal to Moultrie Municipal |
| Morgantown Municipal Walter L Bill Hart Field (MGW) | Morgantown | WV | Arnprior Municipal to Morgantown Municipal Walter L Bill Hart Field |
| Dayton-Wright Brothers (MGY) | Dayton | OH | Arnprior Municipal to Dayton-Wright Brothers |
| Mitchell Municipal (MHE) | Mitchell | SD | Arnprior Municipal to Mitchell Municipal |
| Manhattan Regional (MHK) | Manhattan | KS | Arnprior Municipal to Manhattan Regional |
| Marshall Memorial Municipal (MHL) | Marshall | MO | Arnprior Municipal to Marshall Memorial Municipal |
| Manchester (MHT) | Manchester | NH | Arnprior Municipal to Manchester |
| Crystal (MIC) | Minneapolis | MN | Arnprior Municipal to Crystal |
| Delaware County Regional (MIE) | Muncie | IN | Arnprior Municipal to Delaware County Regional |
| Miami Regional (MIO) | Miami | OK | Arnprior Municipal to Miami Regional |
| Omaha Millard (MIQ) | Omaha | NE | Arnprior Municipal to Omaha Millard |
| Millville Municipal (MIV) | Millville | NJ | Arnprior Municipal to Millville Municipal |
| Marshalltown Municipal (MIW) | Marshalltown | IA | Arnprior Municipal to Marshalltown Municipal |
| Jackson Municipal (MJQ) | Jackson | MN | Arnprior Municipal to Jackson Municipal |
| Ocean County (MJX) | Toms River | NJ | Arnprior Municipal to Ocean County |
| Charles B Wheeler Downtown (MKC) | Kansas City | MO | Arnprior Municipal to Charles B Wheeler Downtown |
| Milwaukee Mitchell International (MKE) | Milwaukee | WI | Arnprior Municipal to Milwaukee Mitchell International |
| Muskegon County (MKG) | Muskegon | MI | Arnprior Municipal to Muskegon County |
| Mckellar Sipes Regional (MKL) | Jackson | TN | Arnprior Municipal to Mckellar Sipes Regional |
| Mankato Regional (MKT) | Mankato | MN | Arnprior Municipal to Mankato Regional |
| Quad City International (MLI) | Moline | IL | Arnprior Municipal to Quad City International |
| Baldwin County Regional (MLJ) | Milledgeville | GA | Arnprior Municipal to Baldwin County Regional |
| Millinocket Municipal (MLT) | Millinocket | ME | Arnprior Municipal to Millinocket Municipal |
| Mcminn County (MMI) | Athens | TN | Arnprior Municipal to Mcminn County |
| Southwest Minnesota Regional Marshall/Ryan Field (MML) | Marshall | MN | Arnprior Municipal to Southwest Minnesota Regional Marshall/Ryan Field |
| Marks/Selfs (MMS) | Marks | MS | Arnprior Municipal to Marks/Selfs |
| Morristown Municipal (MMU) | Morristown | NJ | Arnprior Municipal to Morristown Municipal |
| Menominee-Marinette Twin County (MNM) | Menominee | MI | Arnprior Municipal to Menominee-Marinette Twin County |
| Marion Municipal (MNN) | Marion | OH | Arnprior Municipal to Marion Municipal |
| Mount Pleasant Municipal (MOP) | Mount Pleasant | MI | Arnprior Municipal to Mount Pleasant Municipal |
| Moore-Murrell (MOR) | Morristown | TN | Arnprior Municipal to Moore-Murrell |
| Morris Municipal/Charlie Schmidt Field (MOX) | Morris | MN | Arnprior Municipal to Morris Municipal/Charlie Schmidt Field |
| Petit Jean Park (MPJ) | Morrilton | AR | Arnprior Municipal to Petit Jean Park |
| Pocono Mountains Municipal (MPO) | Mount Pocono | PA | Arnprior Municipal to Pocono Mountains Municipal |
| Edward F Knapp State (MPV) | Barre-Montpelier | VT | Arnprior Municipal to Edward F Knapp State |
| Mount Pleasant Municipal (MPZ) | Mount Pleasant | IA | Arnprior Municipal to Mount Pleasant Municipal |
| Macomb Municipal (MQB) | Macomb | IL | Arnprior Municipal to Macomb Municipal |
| Sawyer International (MQT) | Marquette | MI | Arnprior Municipal to Sawyer International |
| Telfair-Wheeler (MQW) | Mc Rae | GA | Arnprior Municipal to Telfair-Wheeler |
| Smyrna (MQY) | Smyrna | TN | Arnprior Municipal to Smyrna |
| Eastern West Virginia Regional/Shepherd Field (MRB) | Martinsburg | WV | Arnprior Municipal to Eastern West Virginia Regional/Shepherd Field |
| Maury County (MRC) | Columbia | TN | Arnprior Municipal to Maury County |
| Foothills Regional (MRN) | Morganton | NC | Arnprior Municipal to Foothills Regional |
| Northwest Alabama Regional (MSL) | Muscle Shoals | AL | Arnprior Municipal to Northwest Alabama Regional |
| Truax Field/Dane County Regional (MSN) | Madison | WI | Arnprior Municipal to Truax Field/Dane County Regional |
| Minneapolis St Paul International/Wold-Chamberlain (MSP) | Minneapolis | MN | Arnprior Municipal to Minneapolis St Paul International/Wold-Chamberlain |
| Sullivan County International (MSV) | Monticello | NY | Arnprior Municipal to Sullivan County International |
| Martin State (MTN) | Baltimore | MD | Arnprior Municipal to Martin State |
| Coles County Memorial (MTO) | Mattoon/Charleston | IL | Arnprior Municipal to Coles County Memorial |
| Montauk (MTP) | Montauk | NY | Arnprior Municipal to Montauk |
| Manitowoc County (MTW) | Manitowoc | WI | Arnprior Municipal to Manitowoc County |
| Spence (MUL) | Moultrie | GA | Arnprior Municipal to Spence |
| Muscatine Municipal (MUT) | Muscatine | IA | Arnprior Municipal to Muscatine Municipal |
| Monroe County Aeroplex (MVC) | Monroeville | AL | Arnprior Municipal to Monroe County Aeroplex |
| Montevideo-Chippewa County (MVE) | Montevideo | MN | Arnprior Municipal to Montevideo-Chippewa County |
| Morrisville-Stowe State (MVL) | Morrisville | VT | Arnprior Municipal to Morrisville-Stowe State |
| Mount Vernon (MVN) | Mount Vernon | IL | Arnprior Municipal to Mount Vernon |
| Martha's Vineyard (MVY) | Vineyard Haven | MA | Arnprior Municipal to Martha's Vineyard |
| Williamson County Rgnl (MWA) | Marion | IL | Arnprior Municipal to Williamson County Rgnl |
| Lawrence J Timmerman (MWC) | Milwaukee | WI | Arnprior Municipal to Lawrence J Timmerman |
| Windom Municipal (MWM) | Windom | MN | Arnprior Municipal to Windom Municipal |
| Middletown Regional - Hook Field (MWO) | Middletown | OH | Arnprior Municipal to Middletown Regional - Hook Field |
| Manila Municipal (MXA) | Manila | AR | Arnprior Municipal to Manila Municipal |
| Laurinburg-Maxton (MXE) | Maxton | NC | Arnprior Municipal to Laurinburg-Maxton |
| Monticello Regional (MXO) | Monticello | IA | Arnprior Municipal to Monticello Regional |
| Myrtle Beach International (MYR) | Myrtle Beach | SC | Arnprior Municipal to Myrtle Beach International |
| Marion Municipal (MZZ) | Marion | IN | Arnprior Municipal to Marion Municipal |
| Quonset State (NCO) | North Kingstown | RI | Arnprior Municipal to Quonset State |
| Lindsay (NF4) | Lindsay | ON | Arnprior Municipal to Lindsay |
| Brunswick Executive (NHZ) | Brunswick | ME | Arnprior Municipal to Brunswick Executive |
| Jerry Tyler Memorial (NLE) | Niles | MI | Arnprior Municipal to Jerry Tyler Memorial |
| Niagara Central (NQ3) | Welland | ON | Arnprior Municipal to Niagara Central |
| Millington Regional Jetport (NQA) | Millington | TN | Arnprior Municipal to Millington Regional Jetport |
| Tobermory (NR4) | Tobermory | ON | Arnprior Municipal to Tobermory |
| Slayton Municipal (NSL) | Slayton | MN | Arnprior Municipal to Slayton Municipal |
| Nevada Municipal (NVD) | Nevada | MO | Arnprior Municipal to Nevada Municipal |
| Parlin Field (NWH) | Newport | NH | Arnprior Municipal to Parlin Field |
| Collingwood Regional (NY3) | Collingwood | ON | Arnprior Municipal to Collingwood Regional |
| Albert J Ellis (OAJ) | Jacksonville | NC | Arnprior Municipal to Albert J Ellis |
| Ocean City Municipal (OCE) | Ocean City | MD | Arnprior Municipal to Ocean City Municipal |
| Washington-Warren (OCW) | Washington | NC | Arnprior Municipal to Washington-Warren |
| Garrett County (ODM) | Oakland | MD | Arnprior Municipal to Garrett County |
| L O Simenstad Municipal (OEO) | Osceola | WI | Arnprior Municipal to L O Simenstad Municipal |
| Norfolk Regional/Karl Stefan Memorial Field (OFK) | Norfolk | NE | Arnprior Municipal to Norfolk Regional/Karl Stefan Memorial Field |
| Orangeburg Municipal (OGB) | Orangeburg | SC | Arnprior Municipal to Orangeburg Municipal |
| Lt Warren Eaton (OIC) | Norwich | NY | Arnprior Municipal to Lt Warren Eaton |
| Johnson County Executive (OJC) | Olathe | KS | Arnprior Municipal to Johnson County Executive |
| Kokomo Municipal (OKK) | Kokomo | IN | Arnprior Municipal to Kokomo Municipal |
| Dewitt Field/Old Town Municipal (OLD) | Old Town | ME | Arnprior Municipal to Dewitt Field/Old Town Municipal |
| Cattaraugus County-Olean Municipal (OLE) | Olean | NY | Arnprior Municipal to Cattaraugus County-Olean Municipal |
| Columbus Municipal (OLU) | Columbus | NE | Arnprior Municipal to Columbus Municipal |
| Olive Branch (OLV) | Olive Branch | MS | Arnprior Municipal to Olive Branch |
| Olney-Noble (OLY) | Olney-Noble | IL | Arnprior Municipal to Olney-Noble |
| Eppley Airfield (OMA) | Omaha | NE | Arnprior Municipal to Eppley Airfield |
| Winona Municipal-Max Conrad Field (ONA) | Winona | MN | Arnprior Municipal to Winona Municipal-Max Conrad Field |
| Oneonta Municipal (ONH) | Oneonta | NY | Arnprior Municipal to Oneonta Municipal |
| The O'neill Municipal-John L Baker Field (ONL) | O'neill | NE | Arnprior Municipal to The O'neill Municipal-John L Baker Field |
| Oskaloosa Municipal (OOA) | Oskaloosa | IA | Arnprior Municipal to Oskaloosa Municipal |
| Chicago O'hare International (ORD) | Chicago | IL | Arnprior Municipal to Chicago O'hare International |
| Norfolk International (ORF) | Norfolk | VA | Arnprior Municipal to Norfolk International |
| Worcester Regional (ORH) | Worcester | MA | Arnprior Municipal to Worcester Regional |
| Grand Glaize Osage Beach (OSB) | Osage Beach | MO | Arnprior Municipal to Grand Glaize Osage Beach |
| Oscoda-Wurtsmith (OSC) | Oscoda | MI | Arnprior Municipal to Oscoda-Wurtsmith |
| Wittman Regional (OSH) | Oshkosh | WI | Arnprior Municipal to Wittman Regional |
| Ohio State University (OSU) | Columbus | OH | Arnprior Municipal to Ohio State University |
| Kosciusko-Attala County (OSX) | Kosciusko | MS | Arnprior Municipal to Kosciusko-Attala County |
| Worthington Municipal (OTG) | Worthington | MN | Arnprior Municipal to Worthington Municipal |
| Ottumwa Regional (OTM) | Ottumwa | IA | Arnprior Municipal to Ottumwa Regional |
| Owatonna Degner Regional (OWA) | Owatonna |
