| Brenham Municipal (K11) | Brenham | TX | Nut Tree to Brenham Municipal |
| Creve Coeur (K1H0) | St Louis | MO | Nut Tree to Creve Coeur |
| Effingham County Memorial (K1H2) | Effingham | IL | Nut Tree to Effingham County Memorial |
| Hurricane Municipal/General Dick Stout Field (K1L8) | Hurricane | UT | Nut Tree to Hurricane Municipal/General Dick Stout Field |
| Shelby County (K2H0) | Shelbyville | IL | Nut Tree to Shelby County |
| Heber City Municipal - Russ Mcdonald Field (K36U) | Heber | UT | Nut Tree to Heber City Municipal - Russ Mcdonald Field |
| Deer Lodge-City-County (K38S) | Deer Lodge | MT | Nut Tree to Deer Lodge-City-County |
| Mount Hawley Auxiliary (K3MY) | Peoria | IL | Nut Tree to Mount Hawley Auxiliary |
| Spanish Peaks Airfield (K4V1) | Walsenburg | CO | Nut Tree to Spanish Peaks Airfield |
| Bearce (K7M3) | Mount Ida | AR | Nut Tree to Bearce |
| Eureka (K88M) | Eureka | MT | Nut Tree to Eureka |
| Spicewood (K88R) | Spicewood | TX | Nut Tree to Spicewood |
| Wichita Col James Jabara (KAAO) | Wichita | KS | Nut Tree to Wichita Col James Jabara |
| Kake (KAE) | Kake | AK | Nut Tree to Kake |
| Anoka County-Blaine (Janes Field) (KANE) | Minneapolis | MN | Nut Tree to Anoka County-Blaine (Janes Field) |
| Bend Municipal (KBDN) | Bend | OR | Nut Tree to Bend Municipal |
| Burlington Municipal (KBUU) | Burlington | WI | Nut Tree to Burlington Municipal |
| Mineral County Memorial (KC24) | Creede | CO | Nut Tree to Mineral County Memorial |
| Front Range (KCFO) | Denver | CO | Nut Tree to Front Range |
| Chandler Municipal (KCHD) | Chandler | AZ | Nut Tree to Chandler Municipal |
| Camarillo (KCMA) | Camarillo | CA | Nut Tree to Camarillo |
| Custer County (KCUT) | Custer | SD | Nut Tree to Custer County |
| Dona Ana County At Santa Teresa (KDNA) | Santa Teresa | NM | Nut Tree to Dona Ana County At Santa Teresa |
| Horseshoe Bay Resort (KDZB) | Austin | TX | Nut Tree to Horseshoe Bay Resort |
| Unity (KE8) | Unity | SK | Nut Tree to Unity |
| Austin Executive (KEDC) | Austin | TX | Nut Tree to Austin Executive |
| Meeker Coulter Field (KEEO) | Meeker | CO | Nut Tree to Meeker Coulter Field |
| Kewanee Municipal (KEZI) | Kewanee | IL | Nut Tree to Kewanee Municipal |
| Hereford Municipal (KHRX) | Hereford | TX | Nut Tree to Hereford Municipal |
| Mesa Del Rey (KIC) | King City | CA | Nut Tree to Mesa Del Rey |
| Kickapoo Downtown (KIP) | Wichita Falls | TX | Nut Tree to Kickapoo Downtown |
| Kentland Municipal (KKT) | Kentland | IN | Nut Tree to Kentland Municipal |
| Yucca Valley (KL22) | Yucca Valley | CA | Nut Tree to Yucca Valley |
| Bakersfield Municipal (KL45) | Bakersfield | CA | Nut Tree to Bakersfield Municipal |
| Lancaster Regional (KLNC) | Lancaster | TX | Nut Tree to Lancaster Regional |
| Southwest Washington Regional (KLS) | Kelso | WA | Nut Tree to Southwest Washington Regional |
| Klawock (KLW) | Klawock | AK | Nut Tree to Klawock |
| Lee's Summit Municipal (KLXT) | Lee's Summit | MO | Nut Tree to Lee's Summit Municipal |
| Kanab Municipal (KNB) | Kanab | UT | Nut Tree to Kanab Municipal |
| Kennett Memorial (KNT) | Kennett | MO | Nut Tree to Kennett Memorial |
| Rogers Field (KO05) | Chester | CA | Nut Tree to Rogers Field |
| Lee Vining (KO24) | Lee Vining | CA | Nut Tree to Lee Vining |
| Lone Pine (KO26) | Lone Pine | CA | Nut Tree to Lone Pine |
| Reedley Municipal (KO32) | Reedley | CA | Nut Tree to Reedley Municipal |
| Cedarville (KO59) | Cedarville | CA | Nut Tree to Cedarville |
| Orr Regional (KORB) | Orr | MN | Nut Tree to Orr Regional |
| Avi Suquilla (KP20) | Parker | AZ | Nut Tree to Avi Suquilla |
| Price County (KPBH) | Phillips | WI | Nut Tree to Price County |
| Jackpot/Hayden Field (KPT) | Jackpot | NV | Nut Tree to Jackpot/Hayden Field |
| Platteville Municipal (KPVB) | Platteville | WI | Nut Tree to Platteville Municipal |
| Lucky Lake (KQ5) | Lucky Lake | SK | Nut Tree to Lucky Lake |
| Redlands Municipal (KREI) | Redlands | CA | Nut Tree to Redlands Municipal |
| Window Rock (KRQE) | Window Rock | AZ | Nut Tree to Window Rock |
| Reno Stead (KRTS) | Reno | NV | Nut Tree to Reno Stead |
| Methow Valley State (KS52) | Winthrop | WA | Nut Tree to Methow Valley State |
| Sonora Municipal (KSOA) | Sonora | TX | Nut Tree to Sonora Municipal |
| Saline County Regional (KSUZ) | Benton | AR | Nut Tree to Saline County Regional |
| Invermere (AA8) | Invermere | BC | Nut Tree to Invermere |
| Abilene Regional (ABI) | Abilene | TX | Nut Tree to Abilene Regional |
| Albuquerque/Sunport International (ABQ) | Albuquerque | NM | Nut Tree to Albuquerque/Sunport International |
| Aberdeen Regional (ABR) | Aberdeen | SD | Nut Tree to Aberdeen Regional |
| Ciudad Acuna International (ACN) | Ciudad Acuna | Coa | Nut Tree to Ciudad Acuna International |
| Waco Regional (ACT) | Waco | TX | Nut Tree to Waco Regional |
| California Redwood Coast-Humboldt County (ACV) | Arcata | CA | Nut Tree to California Redwood Coast-Humboldt County |
| Ardmore Municipal (ADM) | Ardmore | OK | Nut Tree to Ardmore Municipal |
| Addison/Dallas (ADS) | Dallas | TX | Nut Tree to Addison/Dallas |
| Ada Municipal (ADT) | Ada | OK | Nut Tree to Ada Municipal |
| Albert Lea Municipal (AEL) | Albert Lea | MN | Nut Tree to Albert Lea Municipal |
| Alexandria International (AEX) | Alexandria | LA | Nut Tree to Alexandria International |
| Afton Municipal (AFO) | Afton | WY | Nut Tree to Afton Municipal |
| Fort Worth Alliance (AFW) | Fort Worth | TX | Nut Tree to Fort Worth Alliance |
| Magnolia Municipal (AGO) | Magnolia | AR | Nut Tree to Magnolia Municipal |
| Aguascalientes/Jesus Teran Intl (AGU) | Aguascalientes | Agu | Nut Tree to Aguascalientes/Jesus Teran Intl |
| Valemount (AH4) | Valemount | BC | Nut Tree to Valemount |
| Ardmore Downtown Executive (AHD) | Ardmore | OK | Nut Tree to Ardmore Downtown Executive |
| Amery Municipal (AHH) | Amery | WI | Nut Tree to Amery Municipal |
| Ashland Municipal-Sumner Parker Field (AHM) | Ashland | OR | Nut Tree to Ashland Municipal-Sumner Parker Field |
| Alliance Municipal (AIA) | Alliance | NE | Nut Tree to Alliance Municipal |
| Atlantic Municipal (AIO) | Atlantic | IA | Nut Tree to Atlantic Municipal |
| Lee C Fine Memorial (AIZ) | KAISER/LAKE OZARK | MO | Nut Tree to Lee C Fine Memorial |
| Cayley/A J Flying Ranch (AJ7) | Cayley | AB | Nut Tree to Cayley/A J Flying Ranch |
| Colorado Plains Regional (AKO) | Akron | CO | Nut Tree to Colorado Plains Regional |
| Alpine-Casparis Municipal (ALE) | Alpine | TX | Nut Tree to Alpine-Casparis Municipal |
| Alice International (ALI) | Alice | TX | Nut Tree to Alice International |
| Alamogordo White Sands Regional (ALM) | Alamogordo | NM | Nut Tree to Alamogordo White Sands Regional |
| St Louis Regional (ALN) | Alton | IL | Nut Tree to St Louis Regional |
| Waterloo Regional (ALO) | Waterloo | IA | Nut Tree to Waterloo Regional |
| San Luis Valley Regional/Bergman Field (ALS) | Alamosa | CO | Nut Tree to San Luis Valley Regional/Bergman Field |
| Walla Walla Regional (ALW) | Walla Walla | WA | Nut Tree to Walla Walla Regional |
| Rick Husband Amarillo International (AMA) | Amarillo | TX | Nut Tree to Rick Husband Amarillo International |
| Animas Air Park (AMK) | Durango | CO | Nut Tree to Animas Air Park |
| Ames Municipal (AMW) | Ames | IA | Nut Tree to Ames Municipal |
| Ainsworth Regional (ANW) | Ainsworth | NE | Nut Tree to Ainsworth Regional |
| Centennial (APA) | Denver | CO | Nut Tree to Centennial |
| Apple Valley (APV) | Apple Valley | CA | Nut Tree to Apple Valley |
| New Iberia/Acadiana Regional (ARA) | New Iberia | LA | Nut Tree to New Iberia/Acadiana Regional |
| Walnut Ridge Regional (ARG) | Walnut Ridge | AR | Nut Tree to Walnut Ridge Regional |
| Lakeland/Noble F. Lee Memorial Field (ARV) | Minocqua | WI | Nut Tree to Lakeland/Noble F. Lee Memorial Field |
| Aspen-Pitkin County/Sardy Field (ASE) | Aspen | CO | Nut Tree to Aspen-Pitkin County/Sardy Field |
| Harrison County (ASL) | Marshall | TX | Nut Tree to Harrison County |
| Austin (ASQ) | Austin | NV | Nut Tree to Austin |
| Astoria Regional (AST) | Astoria | OR | Nut Tree to Astoria Regional |
| John F Kennedy Memorial (ASX) | Ashland | WI | Nut Tree to John F Kennedy Memorial |
| Ashley Municipal (ASY) | Ashley | ND | Nut Tree to Ashley Municipal |
| Antlers Municipal (ATE) | Antlers | OK | Nut Tree to Antlers Municipal |
| Artesia Municipal (ATS) | Artesia | NM | Nut Tree to Artesia Municipal |
| Appleton International (ATW) | Appleton | WI | Nut Tree to Appleton International |
| Watertown Regional (ATY) | Watertown | SD | Nut Tree to Watertown Regional |
| Oliver (AU3) | Oliver | BC | Nut Tree to Oliver |
| Vanderhoof (AU4) | Vanderhoof | BC | Nut Tree to Vanderhoof |
| Austin Municipal (AUM) | Austin | MN | Nut Tree to Austin Municipal |
| Austin Bergstrom International (AUS) | Austin | TX | Nut Tree to Austin Bergstrom International |
| Wausau Downtown (AUW) | Wausau | WI | Nut Tree to Wausau Downtown |
| Chicago/Aurora Municipal (AUZ) | Chicago | IL | Nut Tree to Chicago/Aurora Municipal |
| Marana Regional (AVW) | Tucson | AZ | Nut Tree to Marana Regional |
| Catalina (AVX) | Avalon | CA | Nut Tree to Catalina |
| West Memphis Municipal (AWM) | West Memphis | AR | Nut Tree to West Memphis Municipal |
| Chandler Field (AXN) | Alexandria | MN | Nut Tree to Chandler Field |
| Altus/Quartz Mountain Regional (AXS) | Altus | OK | Nut Tree to Altus/Quartz Mountain Regional |
| Angel Fire (Colfax County) (AXX) | Angel Fire | NM | Nut Tree to Angel Fire (Colfax County) |
| Cache Creek (AZ5) | Cache-Creek | BC | Nut Tree to Cache Creek |
| Phoenix-Mesa Gateway (AZA) | Phoenix | AZ | Nut Tree to Phoenix-Mesa Gateway |
| Battle Mountain (BAM) | Battle Mountain | NV | Nut Tree to Battle Mountain |
| Benson Municipal (BBB) | Benson | MN | Nut Tree to Benson Municipal |
| Bay City Regional (BBC) | Bay City | TX | Nut Tree to Bay City Regional |
| Curtis Field (BBD) | Brady | TX | Nut Tree to Curtis Field |
| Broken Bow Municipal/Keith Glaze Field (BBW) | Broken Bow | NE | Nut Tree to Broken Bow Municipal/Keith Glaze Field |
| Bryce Canyon (BCE) | Bryce Canyon | UT | Nut Tree to Bryce Canyon |
| Baudette International (BDE) | Baudette | MN | Nut Tree to Baudette International |
| Blanding Municipal (BDG) | Blanding | UT | Nut Tree to Blanding Municipal |
| Bandon State (BDY) | Bandon | OR | Nut Tree to Bandon State |
| Beech Factory (BEC) | Wichita | KS | Nut Tree to Beech Factory |
| Western Nebraska Regional/William B Heilig Field (BFF) | Scottsbluff | NE | Nut Tree to Western Nebraska Regional/William B Heilig Field |
| Bullfrog Basin (BFG) | Glen Canyon | UT | Nut Tree to Bullfrog Basin |
| King County International Boeing Field (BFI) | Seattle | WA | Nut Tree to King County International Boeing Field |
| Meadows Field (BFL) | Bakersfield | CA | Nut Tree to Meadows Field |
| Hutchinson County (BGD) | Borger | TX | Nut Tree to Hutchinson County |
| Bagdad (BGT) | Bagdad | AZ | Nut Tree to Bagdad |
| Beatrice Municipal (BIE) | Beatrice | NE | Nut Tree to Beatrice Municipal |
| Bishop Regional (BIH) | Bishop | CA | Nut Tree to Bishop Regional |
| Billings Logan International (BIL) | Billings | MT | Nut Tree to Billings Logan International |
| Bismarck Municipal (BIS) | Bismarck | ND | Nut Tree to Bismarck Municipal |
| Echo Valley (BJ4) | Echo Valley | BC | Nut Tree to Echo Valley |
| Rocky Mountain Metropolitan/Jeffco (BJC) | Denver | CO | Nut Tree to Rocky Mountain Metropolitan/Jeffco |
| Bemidji Regional (BJI) | Bemidji | MN | Nut Tree to Bemidji Regional |
| Leon/Bajio/Guanajuato International (BJX) | Leon | Gua | Nut Tree to Leon/Bajio/Guanajuato International |
| Stephens County (BKD) | Breckenridge | TX | Nut Tree to Stephens County |
| Baker City Municipal (BKE) | Baker City | OR | Nut Tree to Baker City Municipal |
| Branson (BKG) | Branson | MO | Nut Tree to Branson |
| Brookings Regional (BKX) | Brookings | SD | Nut Tree to Brookings Regional |
| Boulder City Municipal (BLD) | Boulder City | NV | Nut Tree to Boulder City Municipal |
| Blythe (BLH) | Blythe | CA | Nut Tree to Blythe |
| Bellingham International (BLI) | Bellingham | WA | Nut Tree to Bellingham International |
| MidAmerica St Louis Scott AFB (BLV) | Belleville | IL | Nut Tree to MidAmerica St Louis Scott AFB |
| Brigham City Regional (BMC) | Brigham City | UT | Nut Tree to Brigham City Regional |
| Central Illinois Regional at Bloomington Normal (BMI) | Bloomington | IL | Nut Tree to Central Illinois Regional at Bloomington Normal |
| Beaumont Municipal (BMT) | Beaumont | TX | Nut Tree to Beaumont Municipal |
| Banning Municipal (BNG) | Banning | CA | Nut Tree to Banning Municipal |
| Burns Municipal (BNO) | Burns | OR | Nut Tree to Burns Municipal |
| Boone Municipal (BNW) | Boone | IA | Nut Tree to Boone Municipal |
| Boise Air Terminal Gowen Field (BOI) | Boise | ID | Nut Tree to Boise Air Terminal Gowen Field |
| Brookings Airport (BOK) | Brookings | OR | Nut Tree to Brookings Airport |
| Miley Memorial Field (Big Piney) (BPI) | Big Piney | WY | Nut Tree to Miley Memorial Field (Big Piney) |
| Jack Brooks Regional (BPT) | Beaumont/Port Arthur | TX | Nut Tree to Jack Brooks Regional |
| Kaslo (BR2) | Kaslo | BC | Nut Tree to Kaslo |
| Brainerd Lakes Regional (BRD) | Brainerd | MN | Nut Tree to Brainerd Lakes Regional |
| Southeast Iowa Regional (BRL) | Burlington | IA | Nut Tree to Southeast Iowa Regional |
| Brownsville/South Padre Island International (BRO) | Brownsville | TX | Nut Tree to Brownsville/South Padre Island International |
| Bisbee Municipal (BSQ) | Bisbee | AZ | Nut Tree to Bisbee Municipal |
| Skypark (BTF) | Bountiful | UT | Nut Tree to Skypark |
| Bert Mooney (BTM) | Butte | MT | Nut Tree to Bert Mooney |
| Baton Rouge Metro Ryan Field (BTR) | Baton Rouge | LA | Nut Tree to Baton Rouge Metro Ryan Field |
| Beatty (BTY) | Beatty | NV | Nut Tree to Beatty |
| Butler Memorial (BUM) | Butler | MO | Nut Tree to Butler Memorial |
| Hollywood Burbank (BUR) | Burbank | CA | Nut Tree to Hollywood Burbank |
| Bartlesville Municipal (BVO) | Bartlesville | OK | Nut Tree to Bartlesville Municipal |
| Batesville Regional (BVX) | Batesville | AR | Nut Tree to Batesville Regional |
| Brawley Municipal (BWC) | Brawley | CA | Nut Tree to Brawley Municipal |
| Brownwood Regional (BWD) | Brownwood | TX | Nut Tree to Brownwood Regional |
| Bowman Municipal (BWM) | Bowman | ND | Nut Tree to Bowman Municipal |
| Buckeye Municipal (BXK) | Buckeye | AZ | Nut Tree to Buckeye Municipal |
| Borrego Valley (BXS) | Borrego Springs | CA | Nut Tree to Borrego Valley |
| Johnson County (BYG) | Buffalo | WY | Nut Tree to Johnson County |
| Arkansas International (BYH) | Blytheville | AR | Nut Tree to Arkansas International |
| Burley Municipal (BYI) | Burley | ID | Nut Tree to Burley Municipal |
| Fraser Lake (BZ9) | Fraser Lake | BC | Nut Tree to Fraser Lake |
| Bozeman Yellowstone International (BZN) | Bozeman | MT | Nut Tree to Bozeman Yellowstone International |
| Clayton Municipal Airpark (CAO) | Clayton | NM | Nut Tree to Clayton Municipal Airpark |
| Council Bluffs Municipal (CBF) | Council Bluffs | IA | Nut Tree to Council Bluffs Municipal |
| Shalz Field (CBK) | Colby | KS | Nut Tree to Shalz Field |
| Clinton Municipal (CCA) | Clinton | AR | Nut Tree to Clinton Municipal |
| Cable (CCB) | Upland | CA | Nut Tree to Cable |
| Crane County (CCG) | Crane | TX | Nut Tree to Crane County |
| Northeast Iowa Regional (CCY) | Charles City | IA | Nut Tree to Northeast Iowa Regional |
| Cedar City Regional (CDC) | Cedar City | UT | Nut Tree to Cedar City Regional |
| Harrell Field (CDH) | Camden | AR | Nut Tree to Harrell Field |
| Chadron Municipal (CDR) | Chadron | NE | Nut Tree to Chadron Municipal |
| Childress Municipal (CDS) | Childress | TX | Nut Tree to Childress Municipal |
| Merle K (Mudhole) Smith (CDV) | Cordova | AK | Nut Tree to Merle K (Mudhole) Smith |
| Del Norte Co Regional/Jack Mcnamara Field (CEC) | Crescent City | CA | Nut Tree to Del Norte Co Regional/Jack Mcnamara Field |
| Ciudad Obregon International (CEN) | Ciudad Obregon | Son | Nut Tree to Ciudad Obregon International |
| Kyle-Oakley Field (CEY) | Murray | KY | Nut Tree to Kyle-Oakley Field |
| Cortez Municipal (CEZ) | Cortez | CO | Nut Tree to Cortez Municipal |
| Coulter Field (CFD) | Bryan | TX | Nut Tree to Coulter Field |
| Creston Valley Regional (CFQ) | Creston | BC | Nut Tree to Creston Valley Regional |
| Greenlee County (CFT) | Clifton | AZ | Nut Tree to Greenlee County |
| Coffeyville Municipal (CFV) | Coffeyville | KS | Nut Tree to Coffeyville Municipal |
| Cape Girardeau Regional (CGI) | Cape Girardeau | MO | Nut Tree to Cape Girardeau Regional |
| Casa Grande Municipal (CGZ) | Casa Grande | AZ | Nut Tree to Casa Grande Municipal |
| Chickasha Municipal (CHK) | Chickasha | OK | Nut Tree to Chickasha Municipal |
| Challis (CHL) | Challis | ID | Nut Tree to Challis |
| Chiloquin State (CHZ) | Chiloquin | OR | Nut Tree to Chiloquin State |
| The Eastern Iowa (CID) | Cedar Rapids | IA | Nut Tree to The Eastern Iowa |
| Craig-Moffat (CIG) | Craig | CO | Nut Tree to Craig-Moffat |
| Arthur N Neu (CIN) | Carroll | IA | Nut Tree to Arthur N Neu |
| Cairo Regional (CIR) | Cairo | IL | Nut Tree to Cairo Regional |
| Ciudad Juarez/Abraham Gonzalez Intl (CJS) | Ciudad Juarez | Chi | Nut Tree to Ciudad Juarez/Abraham Gonzalez Intl |
| Fletcher Field (CKM) | Clarksdale | MS | Nut Tree to Fletcher Field |
| Crookston Municipal Kirkwood Field (CKN) | Crookston | MN | Nut Tree to Crookston Municipal Kirkwood Field |
| Carlsbad/McClellan-Palomar (CLD) | Carlsbad | CA | Nut Tree to Carlsbad/McClellan-Palomar |
| New Coalinga Municipal (CLG) | Coalinga | CA | Nut Tree to New Coalinga Municipal |
| Clintonville Municipal (CLI) | Clintonville | WI | Nut Tree to Clintonville Municipal |
| Clinton Regional (CLK) | Clinton | OK | Nut Tree to Clinton Regional |
| Easterwood Field (CLL) | College Station | TX | Nut Tree to Easterwood Field |
| William R Fairchild International (CLM) | Port Angeles | WA | Nut Tree to William R Fairchild International |
| Colima (CLQ) | Colima | Col | Nut Tree to Colima |
| Cliff Hatfield Memorial (CLR) | Calipatria | CA | Nut Tree to Cliff Hatfield Memorial |
| Chehalis-Centralia (CLS) | Chehalis | WA | Nut Tree to Chehalis-Centralia |
| University of Illinois-Willard (CMI) | Champaign/Urbana | IL | Nut Tree to University of Illinois-Willard |
| Houghton County Memorial (CMX) | Hancock | MI | Nut Tree to Houghton County Memorial |
| Sparta/Fort Mccoy (CMY) | Sparta | WI | Nut Tree to Sparta/Fort Mccoy |
| Fremont County (CNE) | Canon City | CO | Nut Tree to Fremont County |
| Cavern City Air Terminal (CNM) | Carlsbad | NM | Nut Tree to Cavern City Air Terminal |
| Chino (CNO) | Chino | CA | Nut Tree to Chino |
| Chanute Martin Johnson (CNU) | Chanute | KS | Nut Tree to Chanute Martin Johnson |
| Waco Texas State Techical College (CNW) | Waco | TX | Nut Tree to Waco Texas State Techical College |
| Canyonlands Field (CNY) | Moab | UT | Nut Tree to Canyonlands Field |
| Yellowstone Regional (COD) | Cody | WY | Nut Tree to Yellowstone Regional |
| Coeur D'alene/Pappy Boyington Field (COE) | Coeur D'Alene | ID | Nut Tree to Coeur D'alene/Pappy Boyington Field |
| Coleman Municipal (COM) | Coleman | TX | Nut Tree to Coleman Municipal |
| City of Colorado Springs Municipal (COS) | Colorado Springs | CO | Nut Tree to City of Colorado Springs Municipal |
| Cotulla-La Salle County (COT) | Cotulla | TX | Nut Tree to Cotulla-La Salle County |
| Columbia Regional (COU) | Columbia | MO | Nut Tree to Columbia Regional |
| Compton/Woodley (CPM) | Compton | CA | Nut Tree to Compton/Woodley |
| Casper/Natrona County International (CPR) | Casper | WY | Nut Tree to Casper/Natrona County International |
| St Louis Downtown (CPS) | Cahokia/St Louis | IL | Nut Tree to St Louis Downtown |
| Corpus Christi International (CRP) | Corpus Christi | TX | Nut Tree to Corpus Christi International |
| C David Campbell Field-Corsicana Municipal (CRS) | Corsicana | TX | Nut Tree to C David Campbell Field-Corsicana Municipal |
| Z M Jack Stell Field (CRT) | Crossett | AR | Nut Tree to Z M Jack Stell Field |
| Cabo San Lucas International (CSL) | Los Cabos | Baj | Nut Tree to Cabo San Lucas International |
| Clinton-Sherman (CSM) | Clinton | OK | Nut Tree to Clinton-Sherman |
| Carson City (CSN) | Carson City | NV | Nut Tree to Carson City |
| Creston Municipal (CSQ) | Creston | IA | Nut Tree to Creston Municipal |
| Cut Bank International (CTB) | Cut Bank | MT | Nut Tree to Cut Bank International |
| Cottonwood (CTW) | Cottonwood | AZ | Nut Tree to Cottonwood |
| Cushing Municipal (CUH) | Cushing | OK | Nut Tree to Cushing Municipal |
| Culiacan (CUL) | Culiacan | Sin | Nut Tree to Culiacan |
| Chihuahua/Gen R Fierro Villalobos (CUU) | Chihuahua | Chi | Nut Tree to Chihuahua/Gen R Fierro Villalobos |
| General Pedro J Mendez/Ciudad Victoria Intl (CVM) | Ciudad Victoria | Tam | Nut Tree to General Pedro J Mendez/Ciudad Victoria Intl |
| Clovis Municipal (CVN) | Clovis | NM | Nut Tree to Clovis Municipal |
| Corvallis Municipal (CVO) | Corvallis | OR | Nut Tree to Corvallis Municipal |
| Central Wisconsin (CWA) | Mosinee | WI | Nut Tree to Central Wisconsin |
| Chennault International (CWF) | Lake Charles | LA | Nut Tree to Chennault International |
| Clinton Municipal (CWI) | Clinton | IA | Nut Tree to Clinton Municipal |
| Cochise County (CWX) | Willcox | AZ | Nut Tree to Cochise County |
| Calexico International (CXL) | Calexico | CA | Nut Tree to Calexico International |
| Conroe North Houston Regional (CXO) | Houston | TX | Nut Tree to Conroe North Houston Regional |
| Cheyenne Regional/Jerry Olson Field (CYS) | Cheyenne | WY | Nut Tree to Cheyenne Regional/Jerry Olson Field |
| Celaya (CYW) | Celaya | Gua | Nut Tree to Celaya |
| Boundary Bay (CZBB) | Vancouver | BC | Nut Tree to Boundary Bay |
| Dimmit County (CZT) | Carrizo Springs | TX | Nut Tree to Dimmit County |
| Barstow-Daggett (DAG) | Daggett | CA | Nut Tree to Barstow-Daggett |
| Dallas Love Field (DAL) | Dallas | TX | Nut Tree to Dallas Love Field |
| Dubuque Regional (DBQ) | Dubuque | IA | Nut Tree to Dubuque Regional |
| Dodge City Regional (DDC) | Dodge City | KS | Nut Tree to Dodge City Regional |
| Decatur (DEC) | Decatur | IL | Nut Tree to Decatur |
| Decorah Municipal (DEH) | Decorah | IA | Nut Tree to Decorah Municipal |
| Denver International (DEN) | Denver | CO | Nut Tree to Denver International |
| Dallas-Fort Worth International (DFW) | Dallas | TX | Nut Tree to Dallas-Fort Worth International |
| Douglas Lake (DGF) | Douglas Lake | BC | Nut Tree to Douglas Lake |
| Douglas Municipal (DGL) | Douglas | AZ | Nut Tree to Douglas Municipal |
| Durango (DGO) | Durango | Dur | Nut Tree to Durango |
| Converse County (DGW) | Douglas | WY | Nut Tree to Converse County |
| Dalhart Municipal (DHT) | Dalhart | TX | Nut Tree to Dalhart Municipal |
| Dickinson Theodore Roosevelt Regional (DIK) | Dickinson | ND | Nut Tree to Dickinson Theodore Roosevelt Regional |
| Duluth International (DLH) | Duluth | MN | Nut Tree to Duluth International |
| Dillon (DLN) | Dillon | MT | Nut Tree to Dillon |
| The Dalles Municipal/Columbia Gorge Regional (DLS) | The Dalles | OR | Nut Tree to The Dalles Municipal/Columbia Gorge Regional |
| Deming Municipal (DMN) | Deming | NM | Nut Tree to Deming Municipal |
| Sedalia Regional (DMO) | Sedalia | MO | Nut Tree to Sedalia Regional |
| Denison Municipal (DNS) | Denison | IA | Nut Tree to Denison Municipal |
| Vermilion Regional (DNV) | Danville | IL | Nut Tree to Vermilion Regional |
| Dupage (DPA) | Chicago | IL | Nut Tree to Dupage |
| Beauregard Regional (DRI) | De Ridder | LA | Nut Tree to Beauregard Regional |
| Durango/La Plata County (DRO) | Durango | CO | Nut Tree to Durango/La Plata County |
| Del Rio International (DRT) | Del Rio | TX | Nut Tree to Del Rio International |
| Des Moines International (DSM) | Des Moines | IA | Nut Tree to Des Moines International |
| Delta Municipal (DTA) | Delta | UT | Nut Tree to Delta Municipal |
| Detroit Lakes-Wething Field (DTL) | Detroit Lakes | MN | Nut Tree to Detroit Lakes-Wething Field |
| Shreveport Downtown (DTN) | Shreveport | LA | Nut Tree to Shreveport Downtown |
| Durant Regional - Eaker Field (DUA) | Durant | OK | Nut Tree to Durant Regional - Eaker Field |
| Halliburton Field (DUC) | Duncan | OK | Nut Tree to Halliburton Field |
| Bisbee Douglas International (DUG) | Douglas/Bisbee | AZ | Nut Tree to Bisbee Douglas International |
| Devils Lake Regional (DVL) | Devils Lake | ND | Nut Tree to Devils Lake Regional |
| Davenport Municipal (DVN) | Davenport | IA | Nut Tree to Davenport Municipal |
| Phoenix Deer Valley (DVT) | Phoenix | AZ | Nut Tree to Phoenix Deer Valley |
| David Wayne Hooks Memorial (DWH) | Houston | TX | Nut Tree to David Wayne Hooks Memorial |
| Olds-Didsbury (EA3) | Olds-Didsbury | AB | Nut Tree to Olds-Didsbury |
| Hardisty (EA5) | Hardisty | AB | Nut Tree to Hardisty |
| Cardston (EA6) | Cardston | AB | Nut Tree to Cardston |
| Phifer Airfield (EAN) | Wheatland | WY | Nut Tree to Phifer Airfield |
| Kearney Regional (EAR) | Kearney | NE | Nut Tree to Kearney Regional |
| Pangborn Memorial (EAT) | Wenatchee | WA | Nut Tree to Pangborn Memorial |
| Chippewa Valley Regional (EAU) | Eau Claire | WI | Nut Tree to Chippewa Valley Regional |
| Mondell Field (ECS) | Newcastle | WY | Nut Tree to Mondell Field |
| Oyen Municipal (ED3) | Oyen | AB | Nut Tree to Oyen Municipal |
| Taber (ED5) | Taber | AB | Nut Tree to Taber |
| El Dorado/Captain Jack Thomas Memorial (EDK) | El Dorado | KS | Nut Tree to El Dorado/Captain Jack Thomas Memorial |
| Needles (EED) | Needles | CA | Nut Tree to Needles |
| Bow Island (EF3) | Bow Island | AB | Nut Tree to Bow Island |
| Airdrie (EF4) | Airdrie | AB | Nut Tree to Airdrie |
| Ellington (EFD) | Houston | TX | Nut Tree to Ellington |
| Lacombe (EG3) | Lacombe | AB | Nut Tree to Lacombe |
| Drumheller Municipal (EG4) | Drumheller | AB | Nut Tree to Drumheller Municipal |
| Eagle County Regional (EGE) | Eagle | CO | Nut Tree to Eagle County Regional |
| Maverick County Memorial International (EGP) | Eagle Pass | TX | Nut Tree to Maverick County Memorial International |
| Eagle River Union (EGV) | Eagle River | WI | Nut Tree to Eagle River Union |
| Ponoka Industrial (EH3) | Ponoka | AB | Nut Tree to Ponoka Industrial |
| South Calgary (EH4) | De Winton | AB | Nut Tree to South Calgary |
| Provost (EH6) | Provost | AB | Nut Tree to Provost |
| Stettler (EJ3) | Stettler | AB | Nut Tree to Stettler |
| Claresholm Industrial (EJ4) | Claresholm | AB | Nut Tree to Claresholm Industrial |
| Eureka/Murray Field (EKA) | Eureka | CA | Nut Tree to Eureka/Murray Field |
| Elko Regional/Harris Field (EKO) | Elko | NV | Nut Tree to Elko Regional/Harris Field |
| Hanna (EL4) | Hanna | AB | Nut Tree to Hanna |
| Eagle Lake (ELA) | Eagle Lake | TX | Nut Tree to Eagle Lake |
| South Arkansas Regional at Goodwin Field (ELD) | El Dorado | AR | Nut Tree to South Arkansas Regional at Goodwin Field |
| Elk City Regional Business (ELK) | Elk City | OK | Nut Tree to Elk City Regional Business |
| Bowers Field (ELN) | Ellensburg | WA | Nut Tree to Bowers Field |
| El Paso International (ELP) | El Paso | TX | Nut Tree to El Paso International |
| Ely/Yelland Field (ELY) | Ely | NV | Nut Tree to Ely/Yelland Field |
| Innisfail (EM4) | Innisfail | AB | Nut Tree to Innisfail |
| Kemmerer Municipal (EMM) | Kemmerer | WY | Nut Tree to Kemmerer Municipal |
| Emporia Municipal (EMP) | Emporia | KS | Nut Tree to Emporia Municipal |
| San Gabriel Valley (EMT) | El Monte | CA | Nut Tree to San Gabriel Valley |
| Three Hills (EN3) | Three Hills | AB | Nut Tree to Three Hills |
| High River (EN4) | High River | AB | Nut Tree to High River |
| Centralia Municipal (ENL) | Centralia | IL | Nut Tree to Centralia Municipal |
| Wendover (ENV) | Wendover | UT | Nut Tree to Wendover |
| Kenosha Regional (ENW) | Kenosha | WI | Nut Tree to Kenosha Regional |
| Keokuk Municipal (EOK) | Keokuk | IA | Nut Tree to Keokuk Municipal |
| Neosho Hugh Robinson (EOS) | Neosho | MO | Nut Tree to Neosho Hugh Robinson |
| Barrhead (EP3) | Barrhead | AB | Nut Tree to Barrhead |
| Ephrata Municipal (EPH) | Ephrata | WA | Nut Tree to Ephrata Municipal |
| Camrose (EQ3) | Camrose | AB | Nut Tree to Camrose |
| Castor (ER2) | Castor | AB | Nut Tree to Castor |
| Kerrville Municipal/Louis Schreiner Field (ERV) | Kerrville | TX | Nut Tree to Kerrville Municipal/Louis Schreiner Field |
| Orcas Island Airport (ESD) | Eastsound | WA | Nut Tree to Orcas Island Airport |
| Ensenada/Gen Alberto Salinas (ESE) | Ensenada | Baj | Nut Tree to Ensenada/Gen Alberto Salinas |
| Esler Regional (ESF) | Alexandria | LA | Nut Tree to Esler Regional |
| Ohkay Owingeh (ESO) | Espanola | NM | Nut Tree to Ohkay Owingeh |
| Estherville Municipal (EST) | Estherville | IA | Nut Tree to Estherville Municipal |
| West Bend Municipal (ETB) | West Bend | WI | Nut Tree to West Bend Municipal |
| Eastland Municipal (ETN) | Eastland | TX | Nut Tree to Eastland Municipal |
| Eureka (EUE) | Eureka | NV | Nut Tree to Eureka |
| Mahlon Sweet Field (EUG) | Eugene | OR | Nut Tree to Mahlon Sweet Field |
| Vegreville (EV3) | Vegreville | AB | Nut Tree to Vegreville |
| Tofield (EV7) | Tofield | AB | Nut Tree to Tofield |
| Eveleth-Virginia Municipal (EVM) | Eveleth | MN | Nut Tree to Eveleth-Virginia Municipal |
| Evanston-Uinta County Burns Field (EVW) | Evanston | WY | Nut Tree to Evanston-Uinta County Burns Field |
| Newton City County (EWK) | Newton | KS | Nut Tree to Newton City County |
| Wetaskiwin Regional (EX3) | Wetaskiwin | AB | Nut Tree to Wetaskiwin Regional |
| Fort Macleod (EY3) | Fort Macleod | AB | Nut Tree to Fort Macleod |
| Yerington Municipal (EYR) | Yerington | NV | Nut Tree to Yerington Municipal |
| Farmington Regional (FAM) | Farmington | MO | Nut Tree to Farmington Regional |
| Hector International Fargo (FAR) | Fargo | ND | Nut Tree to Hector International Fargo |
| Fresno Yosemite International (FAT) | Fresno | CA | Nut Tree to Fresno Yosemite International |
| Warren Thomas Josephburg (FB6) | Edmonton | AB | Nut Tree to Warren Thomas Josephburg |
| Faribault Municipal (FBL) | Faribault | MN | Nut Tree to Faribault Municipal |
| Fort Bridger Airport (FBR) | Fort Bridger | WY | Nut Tree to Fort Bridger Airport |
| Glacier Park International (FCA) | Kalispell | MT | Nut Tree to Glacier Park International |
| Fresno Chandler Executive (FCH) | Fresno | CA | Nut Tree to Fresno Chandler Executive |
| Flying Cloud (FCM) | Minneapolis | MN | Nut Tree to Flying Cloud |
| Foremost (FD4) | Foremost | AB | Nut Tree to Foremost |
| Frederick Regional (FDR) | Frederick | OK | Nut Tree to Frederick Regional |
| Albertus (FEP) | Freeport | IL | Nut Tree to Albertus |
| Fremont Municipal (FET) | Fremont | NE | Nut Tree to Fremont Municipal |
| Fairfield Municipal (FFL) | Fairfield | IA | Nut Tree to Fairfield Municipal |
| Fergus Falls Municipal-Einar Mickelson Field (FFM) | Fergus Falls | MN | Nut Tree to Fergus Falls Municipal-Einar Mickelson Field |
| Consort (FG3) | Consort | AB | Nut Tree to Consort |
| Sierra Vista Municipal/Libby AAF (FHU) | Fort Huachuca | AZ | Nut Tree to Sierra Vista Municipal/Libby AAF |
| Fillmore Municipal (FIL) | Fillmore | UT | Nut Tree to Fillmore Municipal |
| Empress (FL2) | Empress | AB | Nut Tree to Empress |
| Fond Du Lac County (FLD) | Fond Du Lac | WI | Nut Tree to Fond Du Lac County |
| Flagstaff Pulliam (FLG) | Flagstaff | AZ | Nut Tree to Flagstaff Pulliam |
| Marion County Regional (FLP) | Flippin | AR | Nut Tree to Marion County Regional |
| Sherman Army Airfield (FLV) | Fort Leavenworth | KS | Nut Tree to Sherman Army Airfield |
| Fallon Municipal (FLX) | Fallon | NV | Nut Tree to Fallon Municipal |
| Four Corners Regional (FMN) | Farmington | NM | Nut Tree to Four Corners Regional |
| Fort Madison Municipal (FMS) | Fort Madison | IA | Nut Tree to Fort Madison Municipal |
| Northern Colorado Regional (FNL) | Ft Collins/Loveland | CO | Nut Tree to Northern Colorado Regional |
| Fort Dodge Regional (FOD) | Fort Dodge | IA | Nut Tree to Fort Dodge Regional |
| Topeka Regional (FOE) | Topeka | KS | Nut Tree to Topeka Regional |
| Friday Harbor (FRD) | Friday Harbor | WA | Nut Tree to Friday Harbor |
| Fairmont Municipal (FRM) | Fairmont | MN | Nut Tree to Fairmont Municipal |
| Sioux Falls Regional, Joe Foss Field (FSD) | Sioux Falls | SD | Nut Tree to Sioux Falls Regional, Joe Foss Field |
| Fort Scott Municipal (FSK) | Fort Scott | KS | Nut Tree to Fort Scott Municipal |
| Fort Smith Regional (FSM) | Fort Smith | AR | Nut Tree to Fort Smith Regional |
| Fort Stockton-Pecos County (FST) | Fort Stockton | TX | Nut Tree to Fort Stockton-Pecos County |
| Fort Sumner Municipal (FSU) | Fort Sumner | NM | Nut Tree to Fort Sumner Municipal |
| Fort Worth Meacham International (FTW) | Fort Worth | TX | Nut Tree to Fort Worth Meacham International |
| Fullerton Municipal (FUL) | Fullerton | CA | Nut Tree to Fullerton Municipal |
| Branson West Municipal - Emerson Field (FWB) | Branson West | MO | Nut Tree to Branson West Municipal - Emerson Field |
| Okotoks Air Ranch (FX2) | Calgary | AB | Nut Tree to Okotoks Air Ranch |
| Forest City Municipal (FXY) | Forest City | IA | Nut Tree to Forest City Municipal |
| Drake Field (FYV) | Fayetteville | AR | Nut Tree to Drake Field |
| Gage (GAG) | Gage | OK | Nut Tree to Gage |
| Great Bend Municipal (GBD) | Great Bend | KS | Nut Tree to Great Bend Municipal |
| Galesburg Municipal (GBG) | Galesburg | IL | Nut Tree to Galesburg Municipal |
| Gillette-Campbell County (GCC) | Gillette | WY | Nut Tree to Gillette-Campbell County |
| Grand Coulee Dam (GCD) | Electric City | WA | Nut Tree to Grand Coulee Dam |
| Garden City Regional (GCK) | Garden City | KS | Nut Tree to Garden City Regional |
| Grand Canyon National Park (GCN) | Grand Canyon | AZ | Nut Tree to Grand Canyon National Park |
| Guadalajara/Don Miguel Hidalgo y Costilla (GDL) | Guadalajara | Jal | Nut Tree to Guadalajara/Don Miguel Hidalgo y Costilla |
| Dawson Community (GDV) | Glendive | MT | Nut Tree to Dawson Community |
| Spokane International (GEG) | Spokane | WA | Nut Tree to Spokane International |
| South Big Horn County (GEY) | Greybull | WY | Nut Tree to South Big Horn County |
| Grand Forks International (GFK) | Grand Forks | ND | Nut Tree to Grand Forks International |
| East Texas Regional (GGG) | Longview | TX | Nut Tree to East Texas Regional |
| Wokal Field/Glasgow International (GGW) | Glasgow | MT | Nut Tree to Wokal Field/Glasgow International |
| Grand Junction Regional Walker Field (GJT) | Grand Junction | CO | Nut Tree to Grand Junction Regional Walker Field |
| San Carlos Apache (GLB) | Globe | AZ | Nut Tree to San Carlos Apache |
| Renner Field/Goodland Municipal (GLD) | Goodland | KS | Nut Tree to Renner Field/Goodland Municipal |
| Gainesville Municipal (GLE) | Gainesville | TX | Nut Tree to Gainesville Municipal |
| Greenville Mid-Delta (GLH) | Greenville | MS | Nut Tree to Greenville Mid-Delta |
| Scholes International at Galveston (GLS) | Galveston | TX | Nut Tree to Scholes International at Galveston |
| Gansner Field (GNF) | Quincy | CA | Nut Tree to Gansner Field |
| Gooding Municipal (GNG) | Gooding | ID | Nut Tree to Gooding Municipal |
| Grants-Milan Municipal (GNT) | Grants | NM | Nut Tree to Grants-Milan Municipal |
| Guthrie-Edmond Regional (GOK) | Guthrie | OK | Nut Tree to Guthrie-Edmond Regional |
| Gold Beach Municipal (GOL) | Gold Beach | OR | Nut Tree to Gold Beach Municipal |
| Grand Rapids/Itasca County-Gordon Newstrom Field (GPZ) | Grand Rapids | MN | Nut Tree to Grand Rapids/Itasca County-Gordon Newstrom Field |
| Austin Straubel International (GRB) | Green Bay | WI | Nut Tree to Austin Straubel International |
| Greenville (GRE) | Greenville | IL | Nut Tree to Greenville |
| Central Nebraska Regional (GRI) | Grand Island | NE | Nut Tree to Central Nebraska Regional |
| Killeen/Fort Hood Regional/Robert Gray AAF (GRK) | Killeen | TX | Nut Tree to Killeen/Fort Hood Regional/Robert Gray AAF |
| Grand Marais/Cook County (GRM) | Grand Marais | MN | Nut Tree to Grand Marais/Cook County |
| Gordon Municipal (GRN) | Gordon | NE | Nut Tree to Gordon Municipal |
| Gustavus (GST) | Gustavus | AK | Nut Tree to Gustavus |
| Great Falls International (GTF) | Great Falls | MT | Nut Tree to Great Falls International |
| Grants Pass (GTP) | Grants Pass | OR | Nut Tree to Grants Pass |
| Gunnison/Crested Butte Regional (GUC) | Gunnison | CO | Nut Tree to Gunnison/Crested Butte Regional |
| Gallup Municipal (GUP) | Gallup | NM | Nut Tree to Gallup Municipal |
| Guymon Municipal (GUY) | Guymon | OK | Nut Tree to Guymon Municipal |
| Majors (GVT) | Greenville | TX | Nut Tree to Majors |
| Greenwood Leflore (GWO) | Greenwood | MS | Nut Tree to Greenwood Leflore |
| Glenwood Springs Municipal (GWS) | Glenwood Springs | CO | Nut Tree to Glenwood Springs Municipal |
| Greeley-Weld County (GXY) | Greeley | CO | Nut Tree to Greeley-Weld County |
| Guaymas/Gen Jose Maria Yanez International (GYM) | Guaymas | Son | Nut Tree to Guaymas/Gen Jose Maria Yanez International |
| Phoenix Goodyear (GYR) | Goodyear | AZ | Nut Tree to Phoenix Goodyear |
| Gary/Chicago International (GYY) | GARY | IN | Nut Tree to Gary/Chicago International |
| Holbrook Municipal (HBK) | Holbrook | AZ | Nut Tree to Holbrook Municipal |
| Hobart Regional (HBR) | Hobart | OK | Nut Tree to Hobart Regional |
| Big Spring Mc Mahon-Wrinkle (HCA) | Big Spring | TX | Nut Tree to Big Spring Mc Mahon-Wrinkle |
| Brewster Field (HDE) | Holdrege | NE | Nut Tree to Brewster Field |
| Hayden Yampa Valley Regional (HDN) | Hayden | CO | Nut Tree to Hayden Yampa Valley Regional |
| Thompson-Robbins (HEE) | Helena/West Helena | AR | Nut Tree to Thompson-Robbins |
| Hermiston Municipal (HES) | Hermiston | OR | Nut Tree to Hermiston Municipal |
| Natchez-Adams County (Hardy-Anders Field) (HEZ) | Natchez | MS | Nut Tree to Natchez-Adams County (Hardy-Anders Field) |
| Hawthorne Municipal/Jack Northrop Field (HHR) | Hawthorne | CA | Nut Tree to Hawthorne Municipal/Jack Northrop Field |
| Range Regional (HIB) | Hibbing | MN | Nut Tree to Range Regional |
| Lake Havasu City (HII) | Lake Havasu City | AZ | Nut Tree to Lake Havasu City |
| Portland/Hillsboro (HIO) | Portland | OR | Nut Tree to Portland/Hillsboro |
| Blytheville Municipal (HKA) | Blytheville | AR | Nut Tree to Blytheville Municipal |
| Hawkins Field (HKS) | Jackson | MS | Nut Tree to Hawkins Field |
| Hill City Municipal (HLC) | Hill City | KS | Nut Tree to Hill City Municipal |
| Hollister Municipal (HLI) | Hollister | CA | Nut Tree to Hollister Municipal |
| Helena Regional (HLN) | Helena | MT | Nut Tree to Helena Regional |
| Hermosillo/Gen Ignacio P Garcia (HMO) | Hermosillo | Son | Nut Tree to Hermosillo/Gen Ignacio P Garcia |
| Hemet-Ryan (HMT) | Hemet | CA | Nut Tree to Hemet-Ryan |
| Haines (HNS) | Haines | AK | Nut Tree to Haines |
| Hobbs/Lea County Regional (HOB) | Hobbs | NM | Nut Tree to Hobbs/Lea County Regional |
| Huron Regional (HON) | Huron | SD | Nut Tree to Huron Regional |
| Memorial Field (HOT) | Hot Springs | AR | Nut Tree to Memorial Field |
| William P Hobby (HOU) | Houston | TX | Nut Tree to William P Hobby |
| Hampton Municipal (HPT) | Hampton | IA | Nut Tree to Hampton Municipal |
| Baytown (HPY) | Houston | TX | Nut Tree to Baytown |
| Bowerman (HQM) | Hoquiam | WA | Nut Tree to Bowerman |
| Valley International (HRL) | Harlingen | TX | Nut Tree to Valley International |
| Boone County Regional (HRO) | Harrison | AR | Nut Tree to Boone County Regional |
| Harrisburg-Raleigh (HSB) | Harrisburg | IL | Nut Tree to Harrisburg-Raleigh |
| Henderson Executive (HSH) | Las Vegas | NV | Nut Tree to Henderson Executive |
| Hastings Municipal (HSI) | Hastings | NE | Nut Tree to Hastings Municipal |
| Hawthorne Industrial (HTH) | Hawthorne | NV | Nut Tree to Hawthorne Industrial |
| Huntsville Municipal (HTV) | Huntsville | TX | Nut Tree to Huntsville Municipal |
| Stan Stamper Municipal (HUJ) | Hugo | OK | Nut Tree to Stan Stamper Municipal |
| Hutchinson Regional (HUT) | Hutchinson | KS | Nut Tree to Hutchinson Regional |
| Hanksville (HVE) | Hanksville | UT | Nut Tree to Hanksville |
| Havre City-County (HVR) | Havre | MT | Nut Tree to Havre City-County |
| San Marcos Regional (HYI) | San Marcos | TX | Nut Tree to San Marcos Regional |
| Sawyer County (HYR) | Hayward | WI | Nut Tree to Sawyer County |
| Hays Regional (HYS) | Hays | KS | Nut Tree to Hays Regional |
| George Bush Intercontinental Houston (IAH) | Houston | TX | Nut Tree to George Bush Intercontinental Houston |
| Schenck Field (ICL) | Clarinda | IA | Nut Tree to Schenck Field |
| Cascade (ICS) | Cascade | ID | Nut Tree to Cascade |
| Wichita Eisenhower National (ICT) | Wichita | KS | Nut Tree to Wichita Eisenhower National |
| Idaho Falls Regional (IDA) | Idaho Falls | ID | Nut Tree to Idaho Falls Regional |
| Independence Municipal (IDP) | Independence | KS | Nut Tree to Independence Municipal |
| Iowa Falls Municipal (IFA) | Iowa Falls | IA | Nut Tree to Iowa Falls Municipal |
| Laughlin/Bullhead International (IFP) | Bullhead City | AZ | Nut Tree to Laughlin/Bullhead International |
| Kingman (IGM) | Kingman | AZ | Nut Tree to Kingman |
| Jacksonville Municipal (IJX) | Jacksonville | IL | Nut Tree to Jacksonville Municipal |
| Greater Kankakee (IKK) | Kankakee | IL | Nut Tree to Greater Kankakee |
| Skylark Field Killeen (ILE) | Killeen | TX | Nut Tree to Skylark Field Killeen |
| Willmar Municipal/John L Rice Field (ILL) | Willmar | MN | Nut Tree to Willmar Municipal/John L Rice Field |
| Imperial Municipal (IML) | Imperial | NE | Nut Tree to Imperial Municipal |
| Ford (IMT) | Iron Mountain | MI | Nut Tree to Ford |
| Winkler County (INK) | Wink | TX | Nut Tree to Winkler County |
| Falls Intl-Einarson Field (INL) | International Falls | MN | Nut Tree to Falls Intl-Einarson Field |
| Winslow-Lindbergh Regional (INW) | Winslow | AZ | Nut Tree to Winslow-Lindbergh Regional |
| Iowa City Municipal (IOW) | Iowa City | IA | Nut Tree to Iowa City Municipal |
| Imperial County (IPL) | Imperial | CA | Nut Tree to Imperial County |
| Iraan Municipal (IRB) | Iraan | TX | Nut Tree to Iraan Municipal |
| Kirksville Regional (IRK) | Kirksville | MO | Nut Tree to Kirksville Regional |
| Williston/Sloulin Field International (ISN) | Williston | ND | Nut Tree to Williston/Sloulin Field International |
| Alexander Field South Wood County (ISW) | Wisconsin Rapids | WI | Nut Tree to Alexander Field South Wood County |
| Gogebic-Iron County (IWD) | Ironwood | MI | Nut Tree to Gogebic-Iron County |
| Inyokern (IYK) | Inyokern | CA | Nut Tree to Inyokern |
| Jackson Hole (JAC) | Jackson | WY | Nut Tree to Jackson Hole |
| Jackson/Evers International (JAN) | Jackson | MS | Nut Tree to Jackson/Evers International |
| Jasper County-Bell Field (JAS) | Jasper | TX | Nut Tree to Jasper County-Bell Field |
| Kyle (JB8) | Kyle | SK | Nut Tree to Kyle |
| Jonesboro Municipal (JBR) | Jonesboro | AR | Nut Tree to Jonesboro Municipal |
| New Century Aircenter (JCI) | Olathe | KS | Nut Tree to New Century Aircenter |
| Kimble County (JCT) | Junction | TX | Nut Tree to Kimble County |
| Leader (JD5) | Leader | SK | Nut Tree to Leader |
| Grant County Regional/Ogilvie Field (JDA) | John Day | OR | Nut Tree to Grant County Regional/Ogilvie Field |
| Jordan (JDN) | Jordan | MT | Nut Tree to Jordan |
| Jefferson City Memorial (JEF) | Jefferson City | MO | Nut Tree to Jefferson City Memorial |
| Macklin (JJ8) | Macklin | SK | Nut Tree to Macklin |
| Cherokee County (JKV) | Jacksonville | TX | Nut Tree to Cherokee County |
| Joplin Regional (JLN) | Joplin | MO | Nut Tree to Joplin Regional |
| Frontier (JM5) | Frontier | SK | Nut Tree to Frontier |
| Jamestown Regional (JMS) | Jamestown | ND | Nut Tree to Jamestown Regional |
| Juneau International (JNU) | Juneau | AK | Nut Tree to Juneau International |
| Maple Creek (JQ4) | Maple Creek | SK | Nut Tree to Maple Creek |
| Luseland (JR2) | Luseland | SK | Nut Tree to Luseland |
| Eston (JR4) | Eston | SK | Nut Tree to Eston |
| Souther Wisconsin Regional (JVL) | Janesville | WI | Nut Tree to Souther Wisconsin Regional |
| Gillespie County (KT82) | Fredericksburg | TX | Nut Tree to Gillespie County |
| Mckinney National (KTKI) | McKinney | TX | Nut Tree to Mckinney National |
| Houston Executive (KTME) | Houston | TX | Nut Tree to Houston Executive |
| Ketchikan International (KTN) | Ketchikan | AK | Nut Tree to Ketchikan International |
| Centerville Municipal (KTVK) | Centerville | IA | Nut Tree to Centerville Municipal |
| South Valley Regional (KU42) | Salt Lake City | UT | Nut Tree to South Valley Regional |
| Aurora State (KUAO) | Aurora | OR | Nut Tree to Aurora State |
| Bentonville Municipal/Louise M Thaden Field (KVBT) | Bentonville | AR | Nut Tree to Bentonville Municipal/Louise M Thaden Field |
| Pearson Field (KVUO) | Vancouver | WA | Nut Tree to Pearson Field |
| Lamar Municipal (LAA) | Lamar | CO | Nut Tree to Lamar Municipal |
| Los Alamos (LAM) | Los Alamos | NM | Nut Tree to Los Alamos |
| La Paz/Gen Manuel Marquez de Leon (LAP) | La Paz | Baj | Nut Tree to La Paz/Gen Manuel Marquez de Leon |
| Laramie Regional (LAR) | Laramie | WY | Nut Tree to Laramie Regional |
| Las Vegas/McCarran International (LAS) | Las Vegas | NV | Nut Tree to Las Vegas/McCarran International |
| Fort Sill Regional Lawton (LAW) | Lawton | OK | Nut Tree to Fort Sill Regional Lawton |
| Los Angeles International (LAX) | Los Angeles | CA | Nut Tree to Los Angeles International |
| Lubbock Preston Smith International (LBB) | Lubbock | TX | Nut Tree to Lubbock Preston Smith International |
| North Platte Regional/Lee Bird Field (LBF) | North Platte | NE | Nut Tree to North Platte Regional/Lee Bird Field |
| Liberal Mid-America Regional (LBL) | Liberal | KS | Nut Tree to Liberal Mid-America Regional |
| Lake Charles Regional (LCH) | Lake Charles | LA | Nut Tree to Lake Charles Regional |
| Lemmon Municipal (LEM) | Lemmon | SD | Nut Tree to Lemmon Municipal |
| Angelina County (LFK) | Lufkin | TX | Nut Tree to Angelina County |
| Lafayette Regional (LFT) | Lafayette | LA | Nut Tree to Lafayette Regional |
| Long Beach/Daugherty Field (LGB) | Long Beach | CA | Nut Tree to Long Beach/Daugherty Field |
| La Grande/Union County (LGD) | La Grande | OR | Nut Tree to La Grande/Union County |
| Logan-Cache (LGU) | Logan | UT | Nut Tree to Logan-Cache |
| Limon Municipal (LIC) | Limon | CO | Nut Tree to Limon Municipal |
| Bill & Hillary Clinton National/Adams Field (LIT) | Little Rock | AR | Nut Tree to Bill & Hillary Clinton National/Adams Field |
| Texas Gulf Coast Regional (LJN) | Angleton Lake Jackson | TX | Nut Tree to Texas Gulf Coast Regional |
| Lake County (LKV) | Lakeview | OR | Nut Tree to Lake County |
| Los Mochis/Valle Del Fuerte (LMM) | Los Mochis | Sin | Nut Tree to Los Mochis/Valle Del Fuerte |
| Crater Lake-Klamath Regional (LMT) | Klamath Falls | OR | Nut Tree to Crater Lake-Klamath Regional |
| Hunt Field (LND) | Lander | WY | Nut Tree to Hunt Field |
| Lincoln Municipal (LNK) | Lincoln | NE | Nut Tree to Lincoln Municipal |
| Tri-County Regional (LNR) | Lone Rock | WI | Nut Tree to Tri-County Regional |
| Derby Field (LOL) | Lovelock | NV | Nut Tree to Derby Field |
| Lewis University Chicago Romeoville (LOT) | Chicago/Romeoville | IL | Nut Tree to Lewis University Chicago Romeoville |
| Monclova/Venustiano Carranza (LOV) | Monclova | Coa | Nut Tree to Monclova/Venustiano Carranza |
| Lompoc (LPC) | Lompoc | CA | Nut Tree to Lompoc |
| Lopez Island Airport (LPS) | Lopez | WA | Nut Tree to Lopez Island Airport |
| Laredo International (LRD) | Laredo | TX | Nut Tree to Laredo International |
| Le Mars Municipal (LRJ) | Le Mars | IA | Nut Tree to Le Mars Municipal |
| Las Cruces International (LRU) | Las Cruces | NM | Nut Tree to Las Cruces International |
| Lordsburg Municipal (LSB) | Lordsburg | NM | Nut Tree to Lordsburg Municipal |
| La Crosse Regional (LSE) | La Crosse | WI | Nut Tree to La Crosse Regional |
| Lusk Municipal (LSK) | Lusk | WY | Nut Tree to Lusk Municipal |
| Los Banos Municipal (LSN) | Los Banos | CA | Nut Tree to Los Banos Municipal |
| Loreto (LTO) | Loreto | Baj | Nut Tree to Loreto |
| Mission Field (LVM) | Livingston | MT | Nut Tree to Mission Field |
| Las Vegas Municipal (LVS) | Las Vegas | NM | Nut Tree to Las Vegas Municipal |
| Lawrence Municipal (LWC) | Lawrence | KS | Nut Tree to Lawrence Municipal |
| Wells Municipal/Harriet Field (LWL) | Wells | NV | Nut Tree to Wells Municipal/Harriet Field |
| Lewiston-Nez Perce County (LWS) | Lewiston | ID | Nut Tree to Lewiston-Nez Perce County |
| Lewistown Municipal (LWT) | Lewistown | MT | Nut Tree to Lewistown Municipal |
| Jim Kelly Field (LXN) | Lexington | NE | Nut Tree to Jim Kelly Field |
| Lake County (LXV) | Leadville | CO | Nut Tree to Lake County |
| Lyons-Rice County Muni (LYO) | Lyons | KS | Nut Tree to Lyons-Rice County Muni |
| Ely Municipal (LYU) | Ely | MN | Nut Tree to Ely Municipal |
| Quentin Aanenson Field (LYV) | Luverne | MN | Nut Tree to Quentin Aanenson Field |
| Madera Municipal (MAE) | Madera | CA | Nut Tree to Madera Municipal |
| Midland International Air and Space Port (MAF) | Midland | TX | Nut Tree to Midland International Air and Space Port |
| Matamoros/Gen Servando Canales (MAM) | Matamoros | Tam | Nut Tree to Matamoros/Gen Servando Canales |
| Malden Regional (MAW) | Malden | MO | Nut Tree to Malden Regional |
| Mobridge Municipal (MBG) | Mobridge | SD | Nut Tree to Mobridge Municipal |
| Omar N Bradley (MBY) | Moberly | MO | Nut Tree to Omar N Bradley |
| Merced Regional/ Macready Field (MCE) | Merced | CA | Nut Tree to Merced Regional/ Macready Field |
| Kansas City International (MCI) | Kansas City | MO | Nut Tree to Kansas City International |
| Mccook Ben Nelson Regional (MCK) | Mc Cook | NE | Nut Tree to Mccook Ben Nelson Regional |
| Mason City Municipal (MCW) | Mason City | IA | Nut Tree to Mason City Municipal |
| Midland Airpark (MDD) | Midland | TX | Nut Tree to Midland Airpark |
| Taylor County (MDF) | Medford | WI | Nut Tree to Taylor County |
| Southern Illinois (MDH) | Carbondale/Murphysboro | IL | Nut Tree to Southern Illinois |
| Madras Municipal (MDJ) | Madras | OR | Nut Tree to Madras Municipal |
| Chicago Midway International (MDW) | Chicago | IL | Nut Tree to Chicago Midway International |
| Memphis International (MEM) | Memphis | TN | Nut Tree to Memphis International |
| Castle (MER) | Merced | CA | Nut Tree to Castle |
| Minden-Tahoe (MEV) | Minden | NV | Nut Tree to Minden-Tahoe |
| Mcallen Miller International (MFE) | McAllen | TX | Nut Tree to Mcallen Miller International |
| Mesquite (MFH) | Mesquite | NV | Nut Tree to Mesquite |
| Marshfield Municipal (MFI) | Marshfield | WI | Nut Tree to Marshfield Municipal |
| Medford/Rogue Valley International (MFR) | Medford | OR | Nut Tree to Medford/Rogue Valley International |
| Mitchell Municipal (MHE) | Mitchell | SD | Nut Tree to Mitchell Municipal |
| Manhattan Regional (MHK) | Manhattan | KS | Nut Tree to Manhattan Regional |
| Marshall Memorial Municipal (MHL) | Marshall | MO | Nut Tree to Marshall Memorial Municipal |
| Mojave Air And Space Port (MHV) | Mojave | CA | Nut Tree to Mojave Air And Space Port |
| Roy Hurd Memorial (MIF) | Monahans | TX | Nut Tree to Roy Hurd Memorial |
| Miami Regional (MIO) | Miami | OK | Nut Tree to Miami Regional |
| Shafter-Minter Field (MIT) | Shafter | CA | Nut Tree to Shafter-Minter Field |
| Marshalltown Municipal (MIW) | Marshalltown | IA | Nut Tree to Marshalltown Municipal |
| Charles B Wheeler Downtown (MKC) | Kansas City | MO | Nut Tree to Charles B Wheeler Downtown |
| Milwaukee Mitchell International (MKE) | Milwaukee | WI | Nut Tree to Milwaukee Mitchell International |
| Mckellar Sipes Regional (MKL) | Jackson | TN | Nut Tree to Mckellar Sipes Regional |
| Muskogee-Davis Regional (MKO) | Muskogee | OK | Nut Tree to Muskogee-Davis Regional |
| Mankato Regional (MKT) | Mankato | MN | Nut Tree to Mankato Regional |
| Mcalester Regional (MLC) | Mc Alester | OK | Nut Tree to Mcalester Regional |
| Malad City (MLD) | Malad City | ID | Nut Tree to Malad City |
| Milford Municipal/Ben And Judy Briscoe Field (MLF) | Milford | UT | Nut Tree to Milford Municipal/Ben And Judy Briscoe Field |
| Quad City International (MLI) | Moline | IL | Nut Tree to Quad City International |
| Malta (MLK) | Malta | MT | Nut Tree to Malta |
| Morelia/Gen Francisco Mujica (MLM) | Morelia | Mic | Nut Tree to Morelia/Gen Francisco Mujica |
| Frank Wiley Field (MLS) | Miles City | MT | Nut Tree to Frank Wiley Field |
| Monroe Regional (MLU) | Monroe | LA | Nut Tree to Monroe Regional |
| Mammoth Yosemite (MMH) | Mammoth Lakes | CA | Nut Tree to Mammoth Yosemite |
| Southwest Minnesota Regional Marshall/Ryan Field (MML) | Marshall | MN | Nut Tree to Southwest Minnesota Regional Marshall/Ryan Field |
| Menominee-Marinette Twin County (MNM) | Menominee | MI | Nut Tree to Menominee-Marinette Twin County |
| Minot International (MOT) | Minot | ND | Nut Tree to Minot International |
| Morris Municipal/Charlie Schmidt Field (MOX) | Morris | MN | Nut Tree to Morris Municipal/Charlie Schmidt Field |
| Petit Jean Park (MPJ) | Morrilton | AR | Nut Tree to Petit Jean Park |
| Mcpherson (MPR) | McPherson | KS | Nut Tree to Mcpherson |
| Mount Pleasant Regional (MPS) | Mount Pleasant | TX | Nut Tree to Mount Pleasant Regional |
| Mount Pleasant Municipal (MPZ) | Mount Pleasant | IA | Nut Tree to Mount Pleasant Municipal |
| Macomb Municipal (MQB) | Macomb | IL | Nut Tree to Macomb Municipal |
| Sawyer International (MQT) | Marquette | MI | Nut Tree to Sawyer International |
| Marfa Municipal (MRF) | Marfa | TX | Nut Tree to Marfa Municipal |
| Monterey Regional (MRY) | Monterey | CA | Nut Tree to Monterey Regional |
| Falcon Field (MSC) | Mesa | AZ | Nut Tree to Falcon Field |
| Mount Pleasant (MSD) | Mount Pleasant | UT | Nut Tree to Mount Pleasant |
| Truax Field/Dane County Regional (MSN) | Madison | WI | Nut Tree to Truax Field/Dane County Regional |
| Missoula International (MSO) | Missoula | MT | Nut Tree to Missoula International |
| Minneapolis St Paul International/Wold-Chamberlain (MSP) | Minneapolis | MN | Nut Tree to Minneapolis St Paul International/Wold-Chamberlain |
| Montrose Regional (MTJ) | Montrose | CO | Nut Tree to Montrose Regional |
| Coles County Memorial (MTO) | Mattoon/Charleston | IL | Nut Tree to Coles County Memorial |
| Manitowoc County (MTW) | Manitowoc | WI | Nut Tree to Manitowoc County |
| Monterrey/Gen Mariano Escobedo (MTY) | Monterrey | Nue | Nut Tree to Monterrey/Gen Mariano Escobedo |
| Muscatine Municipal (MUT) | Muscatine | IA | Nut Tree to Muscatine Municipal |
| Montevideo-Chippewa County (MVE) | Montevideo | MN | Nut Tree to Montevideo-Chippewa County |
| Kayenta (MVM) | Kayenta | AZ | Nut Tree to Kayenta |
| Mount Vernon (MVN) | Mount Vernon | IL | Nut Tree to Mount Vernon |
| Skagit Regional (MVW) | Burlington | WA | Nut Tree to Skagit Regional |
| Williamson County Rgnl (MWA) | Marion | IL | Nut Tree to Williamson County Rgnl |
| Lawrence J Timmerman (MWC) | Milwaukee | WI | Nut Tree to Lawrence J Timmerman |
| Grant County International (MWH) | Moses Lake | WA | Nut Tree to Grant County International |
| Mineral Wells (MWL) | Mineral Wells | TX | Nut Tree to Mineral Wells |
| Manila Municipal (MXA) | Manila | AR | Nut Tree to Manila Municipal |
| Gen Rodolfo Sanchez Taboada/Mexicali International (MXL) | Mexicali | Baj | Nut Tree to Gen Rodolfo Sanchez Taboada/Mexicali International |
| Monticello Regional (MXO) | Monticello | IA | Nut Tree to Monticello Regional |
| Montgomery-Gibbs Executive (MYF) | San Diego | CA | Nut Tree to Montgomery-Gibbs Executive |
| Marble Canyon (MYH) | Marble Canyon | AZ | Nut Tree to Marble Canyon |
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