| ABR | Aberdeen Regional Airport | — |
| ABI | Abilene Regional Airport | — |
| SPI | Abraham Lincoln Capital Airport | — |
| ARA | Acadiana Regional Airport | — |
| ADT | Ada Regional Airport | — |
| ADK | Adak Airport | — |
| SLK | Adirondack Regional Airport | — |
| CAK | Akron Canton Regional Airport | — |
| AKC | Akron Fulton International Airport | — |
| ALM | Alamogordo White Sands Regional Airport | — |
| ALB | Albany International Airport | — |
| OAJ | Albert J Ellis Airport | — |
| ABQ | Albuquerque International Sunport | — |
| WKK | Aleknagik / New Airport | — |
| AEX | Alexandria International Airport | — |
| ALI | Alice International Airport | — |
| AGC | Allegheny County Airport | — |
| BIG | Allen Army Airfield | — |
| AIA | Alliance Municipal Airport | — |
| APN | Alpena County Regional Airport | — |
| AOO | Altoona Blair County Airport | — |
| LTS | Altus Air Force Base | — |
| ABL | Ambler Airport | — |
| AKP | Anaktuvuk Pass Airport | — |
| AND | Anderson Regional Airport | — |
| LFK | Angelina County Airport | — |
| ANI | Aniak Airport | — |
| ANN | Annette Island Airport | — |
| ANB | Anniston Regional Airport | — |
| ANV | Anvik Airport | — |
| ATW | Appleton International Airport | — |
| ARC | Arctic Village Airport | — |
| BYH | Arkansas International Airport | — |
| LBE | Arnold Palmer Regional Airport | — |
| AVL | Asheville Regional Airport | — |
| ASE | Aspen-Pitkin County Airport (Sardy Field) | — |
| AST | Astoria Regional Airport | — |
| AHN | Athens Ben Epps Airport | — |
| ACY | Atlantic City International Airport | — |
| ATK | Atqasuk Edward Burnell Sr Memorial Airport | — |
| AGS | Augusta Regional At Bush Field | — |
| AUG | Augusta State Airport | — |
| AUS | Austin Bergstrom International Airport | — |
| GRB | Austin Straubel International Airport | — |
| BKE | Baker City Municipal Airport | — |
| BWI | Baltimore/Washington International Thurgood Marshall Airport | — |
| BGR | Bangor International Airport | — |
| BKH | Barking Sands Airport | — |
| PAH | Barkley Regional Airport | — |
| BAD | Barksdale Air Force Base | — |
| DAG | Barstow Daggett Airport | — |
| BTI | Barter Island Long Range Radar Station Airport | — |
| BTR | Baton Rouge Metropolitan Airport | — |
| BTL | Battle Creek Executive Airport at Kellogg Field | — |
| BDE | Baudette International Airport | — |
| BAB | Beale Air Force Base | — |
| DRI | Beauregard Regional Airport | — |
| BFP | Beaver County Airport | — |
| BLI | Bellingham International Airport | — |
| BJI | Bemidji Regional Airport | — |
| BTM | Bert Mooney Airport | — |
| BET | Bethel Airport | — |
| BVY | Beverly Regional Airport | — |
| BYS | Bicycle Lake Army Air Field | — |
| BIF | Biggs Army Air Field (Fort Bliss) | — |
| LIT | Bill & Hillary Clinton National Airport/Adams Field | — |
| BIL | Billings Logan International Airport | — |
| BHM | Birmingham-Shuttlesworth International Airport | — |
| DUG | Bisbee Douglas International Airport | — |
| FNT | Bishop International Airport | — |
| BIS | Bismarck Municipal Airport | — |
| LEX | Blue Grass Airport | — |
| BLH | Blythe Airport | — |
| IAN | Bob Baker Memorial Airport | — |
| CEW | Bob Sikes Airport | — |
| BCT | Boca Raton Airport | — |
| BOI | Boise Air Terminal/Gowen Field | — |
| HRO | Boone County Airport | — |
| BOS | Boston Logan International Airport | — |
| BLD | Boulder City Municipal Airport | — |
| HQM | Bowerman Airport | — |
| BWG | Bowling Green Warren County Regional Airport | — |
| LOU | Bowman Field | — |
| BZN | Bozeman Yellowstone International Airport | — |
| BFD | Bradford Regional Airport | — |
| BDL | Bradley International Airport | — |
| BRD | Brainerd Lakes Regional Airport | — |
| BKG | Branson Airport | — |
| PWT | Bremerton National Airport | — |
| SDM | Brown Field Municipal Airport | — |
| BRO | Brownsville South Padre Island International Airport | — |
| NHZ | Brunswick Executive Airport | — |
| BQK | Brunswick Golden Isles Airport | — |
| BCE | Bryce Canyon Airport | — |
| CCR | Buchanan Field | — |
| BFK | Buckley Space Force Base | — |
| BUF | Buffalo Niagara International Airport | — |
| BKL | Burke Lakefront Airport | — |
| BYI | Burley Municipal Airport | — |
| BNO | Burns Municipal Airport | — |
| FCS | Butts AAF (Fort Carson) Air Field | — |
| OZR | Cairns AAF (Fort Rucker) Air Field | — |
| ACV | California Redwood Coast-Humboldt County Airport | — |
| HOP | Campbell Army Airfield (Fort Campbell) | — |
| CVS | Cannon Air Force Base | — |
| CNY | Canyonlands Regional Airport | — |
| HYA | Cape Cod Gateway Airport | — |
| CGI | Cape Girardeau Regional Airport | — |
| LUR | Cape Lisburne LRRS Airport | — |
| WWD | Cape May County Airport | — |
| EHM | Cape Newenham LRRS Airport | — |
| CZF | Cape Romanzof LRRS Airport | — |
| LAN | Capital Region International Airport | — |
| CAR | Caribou Municipal Airport | — |
| CSN | Carson Airport | — |
| CPR | Casper-Natrona County International Airport | — |
| MER | Castle Airport | — |
| CNM | Cavern City Air Terminal | — |
| VQQ | Cecil Airport | — |
| CDC | Cedar City Regional Airport | — |
| APA | Centennial Airport | — |
| BMI | Central Illinois Regional Airport at Bloomington-Normal | — |
| GRI | Central Nebraska Regional Airport | — |
| CWA | Central Wisconsin Airport | — |
| RIW | Central Wyoming Regional Airport | — |
| CDR | Chadron Municipal Airport | — |
| YKN | Chan Gurney Municipal Airport | — |
| AXN | Chandler Field | — |
| CNU | Chanute Martin Johnson Airport | — |
| MKC | Charles B. Wheeler Downtown Airport | — |
| STS | Charles M. Schulz Sonoma County Airport | — |
| CHS | Charleston International Airport | — |
| CLT | Charlotte Douglas International Airport | — |
| CHO | Charlottesville Albemarle Airport | — |
| CHA | Chattanooga Metropolitan Airport (Lovell Field) | — |
| JHW | Chautauqua County-Jamestown Airport | — |
| TVC | Cherry Capital Airport | — |
| CYS | Cheyenne Regional Jerry Olson Field | — |
| PWK | Chicago Executive Airport | — |
| MDW | Chicago Midway International Airport | — |
| ORD | Chicago O'Hare International Airport | hub |
| RFD | Chicago Rockford International Airport | — |
| CDS | Childress Municipal Airport | — |
| CIU | Chippewa County International Airport | — |
| EAU | Chippewa Valley Regional Airport | — |
| LUK | Cincinnati Municipal Airport Lunken Field | — |
| CVG | Cincinnati Northern Kentucky International Airport | hub |
| COS | City of Colorado Springs Municipal Airport | — |
| CLE | Cleveland Hopkins International Airport | — |
| CVN | Clovis Municipal Airport | — |
| EWN | Coastal Carolina Regional Airport | — |
| COE | Coeur D'Alene Airport - Pappy Boyington Field | — |
| CDB | Cold Bay Airport | — |
| DET | Coleman A. Young Municipal Airport | — |
| DLS | Columbia Gorge Regional Airport | — |
| CAE | Columbia Metropolitan Airport | — |
| COU | Columbia Regional Airport | — |
| CBM | Columbus Air Force Base | — |
| CSG | Columbus Airport | — |
| CLU | Columbus Municipal Airport | — |
| OLU | Columbus Municipal Airport | — |
| CON | Concord Municipal Airport | — |
| USA | Concord-Padgett Regional Airport | — |
| CXO | Conroe-North Houston Regional Airport | — |
| CRP | Corpus Christi International Airport | — |
| CEZ | Cortez Municipal Airport | — |
| CVO | Corvallis Municipal Airport | — |
| PRX | Cox Field | — |
| LMT | Crater Lake-Klamath Regional Airport | — |
| CSV | Crossville Memorial Airport Whitson Field | — |
| BBD | Curtis Field | — |
| CTB | Cut Bank International Airport | — |
| CGF | Cuyahoga County Airport | — |
| DHT | Dalhart Municipal Airport | — |
| DFW | Dallas Fort Worth International Airport | hub |
| DAL | Dallas Love Field | — |
| DXR | Danbury Municipal Airport | — |
| MSN | Dane County Regional Truax Field | — |
| DNL | Daniel Field | — |
| HNL | Daniel K. Inouye International Airport | — |
| DAN | Danville Regional Airport | — |
| DMA | Davis Monthan Air Force Base | — |
| DAA | Davison Army Air Field | — |
| GDV | Dawson Community Airport | — |
| DAB | Daytona Beach International Airport | — |
| SCC | Deadhorse Airport | — |
| DEC | Decatur Airport | — |
| DRG | Deering Airport | — |
| PDK | DeKalb Peachtree Airport | — |
| DRT | Del Rio International Airport | — |
| MIE | Delaware County Johnson Field | — |
| ESC | Delta County Airport | — |
| DMN | Deming Municipal Airport | — |
| DEN | Denver International Airport | — |
| LOL | Derby Field | — |
| DSM | Des Moines International Airport | — |
| DRA | Desert Rock Airport | — |
| DSI | Destin Executive Airport | — |
| VPS | Destin-Fort Walton Beach Airport | — |
| DTW | Detroit Metropolitan Wayne County Airport | — |
| DVL | Devils Lake Regional Airport | — |
| DIK | Dickinson Theodore Roosevelt Regional Airport | — |
| EEN | Dillant Hopkins Airport | — |
| DLG | Dillingham Airport | — |
| MGE | Dobbins Air Reserve Base | — |
| DDC | Dodge City Regional Airport | — |
| DHN | Dothan Regional Airport | — |
| DOV | Dover Civil Air Terminal/Dover Air Force Base | — |
| FYV | Drake Field | — |
| TPL | Draughon Miller Central Texas Regional Airport | — |
| DUJ | DuBois Regional Airport | — |
| DBQ | Dubuque Regional Airport | — |
| EGI | Duke Field | — |
| DLH | Duluth International Airport | — |
| DPA | Dupage Airport | — |
| DRO | Durango La Plata County Airport | — |
| DUA | Durant Regional Airport - Eaker Field | — |
| POU | Dutchess County Airport | — |
| DYS | Dyess Air Force Base | — |
| EGE | Eagle County Regional Airport | — |
| SYA | Eareckson Air Station | — |
| GGG | East Texas Regional Airport | — |
| PDT | Eastern Oregon Regional Airport at Pendleton | — |
| BIH | Eastern Sierra Regional Airport | — |
| MRB | Eastern WV Regional Airport/Shepherd Field | — |
| CLL | Easterwood Field | — |
| MPV | Edward F Knapp State Airport | — |
| GAL | Edward G. Pitka Sr Airport | — |
| EDW | Edwards Air Force Base | — |
| EGX | Egegik Airport | — |
| EIL | Eielson Air Force Base | — |
| NJK | El Centro NAF Airport (Vraciu Field) | — |
| ELP | El Paso International Airport | — |
| ECG | Elizabeth City Regional Airport & Coast Guard Air Station | — |
| EKN | Elkins-Randolph County Regional Airport | — |
| EKO | Elko Regional Airport | — |
| EFD | Ellington Airport | — |
| KOA | Ellison Onizuka Kona International Airport at Keāhole | — |
| RCA | Ellsworth Air Force Base | — |
| EDF | Elmendorf Air Force Base | — |
| ELM | Elmira Corning Regional Airport | — |
| ELY | Ely Airport Yelland Field | — |
| LYU | Ely Municipal Airport | — |
| EMK | Emmonak Airport | — |
| OMA | Eppley Airfield | — |
| ERI | Erie International Tom Ridge Field | — |
| ESF | Esler Army Airfield / Esler Regional Airport | — |
| EUG | Eugene Airport | — |
| TOL | Eugene F. Kranz Toledo Express Airport | — |
| EVW | Evanston-Uinta County Airport-Burns Field | — |
| EVV | Evansville Regional Airport | — |
| FAI | Fairbanks International Airport | — |
| SKA | Fairchild Air Force Base | — |
| NFL | Fallon Naval Air Station | — |
| INL | Falls International Airport | — |
| FAY | Fayetteville Regional Airport - Grannis Field | — |
| FAF | Felker Army Air Field | — |
| SFF | Felts Field | — |
| FDY | Findlay Airport | — |
| FLG | Flagstaff Pulliam Airport | — |
| FLO | Florence Regional Airport | — |
| MTH | Florida Keys Marathon International Airport | — |
| GFL | Floyd Bennett Memorial Airport | — |
| IMT | Ford Airport | — |
| FOD | Fort Dodge Regional Airport | — |
| FXE | Fort Lauderdale Executive Airport | — |
| FLL | Fort Lauderdale Hollywood International Airport | — |
| FME | Fort Meade Executive Airport | — |
| FSM | Fort Smith Regional Airport | — |
| FST | Fort Stockton Pecos County Airport | — |
| FWA | Fort Wayne International Airport | — |
| FTW | Fort Worth Meacham International Airport | — |
| FYU | Fort Yukon Airport | — |
| FMN | Four Corners Regional Airport | — |
| ROC | Frederick Douglass Greater Rochester International Airport | — |
| FAT | Fresno Yosemite International Airport | — |
| FRD | Friday Harbor Airport | — |
| SUN | Friedman Memorial Airport | — |
| FTY | Fulton County Airport Brown Field | — |
| GNV | Gainesville Regional Airport | — |
| GUP | Gallup Municipal Airport | — |
| GAM | Gambell Airport | — |
| GCK | Garden City Regional Airport | — |
| RIL | Garfield County Regional Airport | — |
| GYY | Gary/Chicago International Airport | — |
| MKE | General Mitchell International Airport | — |
| PIA | General Wayne A. Downing Peoria International Airport | — |
| WJF | General William J Fox Airfield | — |
| IAH | George Bush Intercontinental Airport | — |
| GRR | Gerald R. Ford International Airport | — |
| FCA | Glacier Park International Airport | — |
| GGW | Glasgow Valley County Airport Wokal Field | — |
| FTK | Godman Army Air Field | — |
| GTR | Golden Triangle Regional Airport | — |
| GLD | Goodland Municipal Airport | — |
| GCN | Grand Canyon National Park Airport | — |
| RDR | Grand Forks Air Force Base | — |
| GFK | Grand Forks International Airport | — |
| GJT | Grand Junction Regional Airport | — |
| CRE | Grand Strand Airport | — |
| SVC | Grant County Airport | — |
| MWH | Grant County International Airport | — |
| GRF | Gray Army Air Field | — |
| GTF | Great Falls International Airport | — |
| BGM | Greater Binghamton/Edwin A Link field | — |
| IKK | Greater Kankakee Airport | — |
| LWB | Greenbrier Valley Airport | — |
| GMU | Greenville Downtown Airport | — |
| GSP | Greenville-Spartanburg International Airport | — |
| GWO | Greenwood–Leflore Airport | — |
| RME | Griffiss International Airport | — |
| GUS | Grissom Air Reserve Base | — |
| GON | Groton New London Airport | — |
| GPT | Gulfport Biloxi International Airport | — |
| GKN | Gulkana Airport | — |
| GUC | Gunnison Crested Butte Regional Airport | — |
| GST | Gustavus Airport | — |
| GUY | Guymon Municipal Airport | — |
| HGR | Hagerstown Regional Richard A Henson Field | — |
| HNS | Haines Airport | — |
| HNM | Hana Airport | — |
| BHB | Hancock County-Bar Harbor Airport | — |
| MDT | Harrisburg International Airport | — |
| LAS | Harry Reid International Airport | — |
| HFD | Hartford Brainard Airport | — |
| ATL | Hartsfield Jackson Atlanta International Airport | hub |
| HBG | Hattiesburg Bobby L Chain Municipal Airport | — |
| PIB | Hattiesburg Laurel Regional Airport | — |
| HVR | Havre City County Airport | — |
| HYS | Hays Regional Airport | — |
| FAR | Hector International Airport | — |
| HLN | Helena Regional Airport | — |
| FSI | Henry Post Army Air Field | — |
| HKY | Hickory Regional Airport | — |
| HIF | Hill Air Force Base | — |
| ITO | Hilo International Airport | — |
| HHH | Hilton Head Airport | — |
| HBR | Hobart Regional Airport | — |
| HMN | Holloman Air Force Base | — |
| BUR | Hollywood Burbank/Bob Hope Airport | — |
| HCR | Holy Cross Airport | — |
| HOM | Homer Airport | — |
| HST | Homestead Air Reserve Base | — |
| CMX | Houghton County Memorial Airport | — |
| HUL | Houlton International Airport | — |
| LND | Hunt Field | — |
| SVN | Hunter Army Air Field | — |
| HSV | Huntsville International Airport | — |
| HTV | Huntsville Regional Airport | — |
| HON | Huron Regional Airport | — |
| HSL | Huslia Airport | — |
| HUT | Hutchinson Municipal Airport | — |
| IDA | Idaho Falls Regional Airport | — |
| BDR | Igor I Sikorsky Memorial Airport | — |
| ILI | Iliamna Airport | — |
| IPL | Imperial County Airport | — |
| UTO | Indian Mountain LRRS Airport | — |
| IND | Indianapolis International Airport | — |
| ITH | Ithaca Tompkins Regional Airport | — |
| BPT | Jack Brooks Regional Airport | — |
| CEC | Jack Mc Namara Field Airport | — |
| HHR | Jack Northrop Field Hawthorne Municipal Airport | — |
| JXN | Jackson County Airport/Reynolds Field | — |
| JAC | Jackson Hole Airport | — |
| JAN | Jackson-Medgar Wiley Evers International Airport | — |
| CRG | Jacksonville Executive at Craig Airport | — |
| JAX | Jacksonville International Airport | — |
| NIP | Jacksonville Naval Air Station (Towers Field) | — |
| TRM | Jacqueline Cochran Regional Airport | — |
| DAY | James M. Cox Dayton International Airport | — |
| JMS | Jamestown Regional Airport | — |
| CUB | Jim Hamilton L.B. Owens Airport | — |
| JFK | John F. Kennedy International Airport | — |
| CMH | John Glenn Columbus International Airport | — |
| JST | John Murtha Johnstown Cambria County Airport | — |
| SNA | John Wayne Orange County International Airport | — |
| ADW | Joint Base Andrews | — |
| JBR | Jonesboro Municipal Airport | — |
| JLN | Joplin Regional Airport | — |
| TWF | Joslin Field Magic Valley Regional Airport | — |
| JNU | Juneau International Airport | — |
| OGG | Kahului International Airport | — |
| JRF | Kalaeloa Airport | — |
| AZO | Kalamazoo/Battle Creek International Airport | — |
| NGF | Kaneohe Bay MCAS (Marion E. Carl Field) Airport | — |
| MCI | Kansas City International Airport | — |
| JHM | Kapalua Airport | — |
| OFK | Karl Stefan Memorial Airport | — |
| EAR | Kearney Regional Airport | — |
| BIX | Keesler Air Force Base | — |
| ENA | Kenai Municipal Airport | — |
| ENW | Kenosha Regional Airport | — |
| KTN | Ketchikan International Airport | — |
| MEI | Key Field / Meridian Regional Airport | — |
| EYW | Key West International Airport | — |
| GRK | Killeen Regional Airport / Robert Gray Army Airfield | — |
| JCT | Kimble County Airport | — |
| BFI | King County International Airport - Boeing Field | — |
| AKN | King Salmon Airport | — |
| IGM | Kingman Airport | — |
| NQI | Kingsville Naval Air Station | — |
| ISO | Kinston Regional Jetport At Stallings Field | — |
| IRK | Kirksville Regional Airport | — |
| ISM | Kissimmee Gateway Airport | — |
| KLW | Klawock Airport | — |
| RKD | Knox County Regional Airport | — |
| ADQ | Kodiak Airport | — |
| OLF | L M Clayton Airport | — |
| LSE | La Crosse Regional Airport | — |
| SKF | Lackland Air Force Base | — |
| FBK | Ladd Army Airfield | — |
| LFT | Lafayette Regional Airport | — |
| LGA | LaGuardia Airport | — |
| LCH | Lake Charles Regional Airport | — |
| SME | Lake Cumberland Regional Airport | — |
| HII | Lake Havasu City Airport | — |
| TVL | Lake Tahoe Airport | — |
| NEW | Lakefront Airport | — |
| NEL | Lakehurst Maxfield Field Airport | — |
| LAL | Lakeland Linder International Airport | — |
| LNY | Lanai Airport | — |
| LNS | Lancaster Airport | — |
| LFI | Langley Air Force Base | — |
| LAR | Laramie Regional Airport | — |
| LRD | Laredo International Airport | — |
| LRU | Las Cruces International Airport | — |
| LVS | Las Vegas Municipal Airport | — |
| DLF | Laughlin Air Force Base | — |
| IFP | Laughlin Bullhead International Airport | — |
| BED | Laurence G Hanscom Field | — |
| LWM | Lawrence Municipal Airport | — |
| LSF | Lawson Army Air Field | — |
| LAW | Lawton Fort Sill Regional Airport | — |
| HOB | Lea County Regional Airport | — |
| LEB | Lebanon Municipal Airport | — |
| LEE | Leesburg International Airport | — |
| ABE | Lehigh Valley International Airport | — |
| SMN | Lemhi County Airport | — |
| NLC | Lemoore Naval Air Station (Reeves Field) Airport | — |
| LWS | Lewiston Nez Perce County Airport | — |
| LWT | Lewistown Municipal Airport | — |
| LBL | Liberal Mid-America Regional Airport | — |
| LIH | Lihue Airport | — |
| LNK | Lincoln Airport | — |
| LRF | Little Rock Air Force Base | — |
| LGU | Logan-Cache Airport | — |
| LOZ | London-Corbin Airport/Magee Field | — |
| LGB | Long Beach International Airport | — |
| ISP | Long Island MacArthur Airport | — |
| LAX | Los Angeles International Airport | — |
| MSY | Louis Armstrong New Orleans International Airport | — |
| SDF | Louisville Muhammad Ali International Airport | hub |
| LBB | Lubbock Preston Smith International Airport | — |
| LUF | Luke Air Force Base | — |
| LBT | Lumberton Regional Airport | — |
| LYH | Lynchburg Regional Airport - Preston Glenn Field | — |
| MCF | MacDill Air Force Base | — |
| MMH | Mammoth Yosemite Airport | — |
| MNZ | Manassas Regional Airport/Harry P. Davis Field | — |
| MHT | Manchester-Boston Regional Airport | — |
| MHK | Manhattan Regional Airport | — |
| MFD | Mansfield Lahm Regional Airport | — |
| RIV | March Air Reserve Base | — |
| MQT | Marquette/Sawyer International Airport | — |
| FRI | Marshall Army Air Field | — |
| MTN | Martin State Airport | — |
| MCW | Mason City Municipal Airport | — |
| MSS | Massena International Airport Richards Field | — |
| MXF | Maxwell Air Force Base | — |
| MBS | MBS International Airport | — |
| MLC | Mc Alester Regional Airport | — |
| MMT | Mc Entire Joint National Guard Base | — |
| WRI | Mc Guire Air Force Base | — |
| MFE | McAllen Miller International Airport | — |
| MYL | McCall Municipal Airport | — |
| TCM | McChord Air Force Base | — |
| MCC | McClellan Airfield | — |
| CLD | McClellan-Palomar Airport | — |
| MCB | McComb-Pike County Airport / John E Lewis Field | — |
| IAB | McConnell Air Force Base | — |
| MCK | McCook Ben Nelson Regional Airport | — |
| TYS | McGhee Tyson Airport | — |
| MCG | McGrath Airport | — |
| MKL | McKellar-Sipes Regional Airport | — |
| BFL | Meadows Field | — |
| MYU | Mekoryuk Airport | — |
| MLB | Melbourne Orlando International Airport | — |
| HOT | Memorial Field Airport | — |
| MEM | Memphis International Airport | hub |
| MCE | Merced Regional Macready Field | — |
| BLF | Mercer County Airport | — |
| CDV | Merle K (Mudhole) Smith Airport | — |
| MRI | Merrill Field | — |
| AZA | Mesa Gateway Airport | — |
| MFH | Mesquite Airport | — |
| TMB | Miami Executive Airport | — |
| MIA | Miami International Airport | — |
| OPF | Miami-Opa Locka Executive Airport | — |
| MGC | Michigan City Municipal Airport | — |
| GLH | Mid Delta Regional Airport | — |
| PKB | Mid Ohio Valley Regional Airport | — |
| MCN | Middle Georgia Regional Airport | — |
| MAF | Midland International Air and Space Port | — |
| MLS | Miles City Airport - Frank Wiley Field | — |
| BPI | Miley Memorial Field | — |
| VTN | Miller Field | — |
| NQA | Millington-Memphis Airport | — |
| MIV | Millville Municipal Airport | — |
| MWL | Mineral Wells Regional Airport | — |
| MSP | Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field | — |
| MIB | Minot Air Force Base | — |
| MOT | Minot International Airport | — |
| NKX | Miramar Marine Corps Air Station - Mitscher Field | — |
| LVM | Mission Field | — |
| MSO | Missoula Montana Airport | — |
| BFM | Mobile Downtown Airport | — |
| MOB | Mobile Regional Airport | — |
| MBG | Mobridge Municipal Airport | — |
| MOD | Modesto City Co-Harry Sham Field | — |
| NUQ | Moffett Federal Airfield | — |
| MHV | Mojave Air & Space Port | — |
| MKK | Molokai Airport | — |
| BMG | Monroe County Airport | — |
| MLU | Monroe Regional Airport | — |
| MRY | Monterey Regional Airport | — |
| MGM | Montgomery Regional (Dannelly Field) Airport | — |
| MTJ | Montrose Regional Airport | — |
| VAD | Moody Air Force Base | — |
| MGW | Morgantown Municipal Airport Walter L. (Bill) Hart Field | — |
| MMU | Morristown Municipal Airport | — |
| MUO | Mountain Home Air Force Base | — |
| MUI | Muir Army Air Field (Fort Indiantown Gap) Airport | — |
| EKA | Murray Field | — |
| MKG | Muskegon County Airport | — |
| MYR | Myrtle Beach International Airport | — |
| ACK | Nantucket Memorial Airport | — |
| APF | Naples Municipal Airport | — |
| FWH | NAS Fort Worth JRB / Carswell Field | — |
| BNA | Nashville International Airport | — |
| NGP | Naval Air Station Corpus Christi Truax Field | — |
| NQX | Naval Air Station Key West/Boca Chica Field | — |
| NPA | Naval Air Station Pensacola Forrest Sherman Field | — |
| NRB | Naval Station Mayport / Admiral David L McDonald Field | — |
| EED | Needles Airport | — |
| LSV | Nellis Air Force Base | — |
| ENN | Nenana Municipal Airport | — |
| EWB | New Bedford Regional Airport | — |
| NBG | New Orleans NAS JRB/Alvin Callender Field | — |
| RNH | New Richmond Regional Airport | — |
| SWF | New York Stewart International Airport | — |
| EWR | Newark Liberty International Airport | — |
| ONP | Newport Municipal Airport | — |
| PHF | Newport News Williamsburg International Airport | — |
| NPT | Newport State Airport | — |
| IAG | Niagara Falls International Airport | — |
| OLS | Nogales International Airport | — |
| OME | Nome Airport | — |
| ORF | Norfolk International Airport | — |
| NGU | Norfolk Naval Station (Chambers Field) | — |
| SJC | Norman Y. Mineta San Jose International Airport | — |
| CKB | North Central West Virginia Airport | — |
| NZY | North Island Naval Air Station-Halsey Field | — |
| VGT | North Las Vegas Airport | — |
| HWO | North Perry Airport | — |
| LBF | North Platte Regional Airport Lee Bird Field | — |
| PNX | North Texas Regional Airport Perrin Field | — |
| UST | Northeast Florida Regional Airport | — |
| CCY | Northeast Iowa Regional Airport | — |
| JFN | Northeast Ohio Regional Airport | — |
| PNE | Northeast Philadelphia Airport | — |
| GCC | Northeast Wyoming Regional Airport | — |
| FNL | Northern Colorado Regional Airport | — |
| ORT | Northway Airport | — |
| MSL | Northwest Alabama Regional Airport | — |
| XNA | Northwest Arkansas National Airport | — |
| ECP | Northwest Florida Beaches International Airport | — |
| OWD | Norwood Memorial Airport | — |
| NUI | Nuiqsut Airport | — |
| PTK | Oakland County International Airport | — |
| OCE | Ocean City Municipal Airport | — |
| OCA | Ocean Reef Club Airport | — |
| NTU | Oceana Naval Air Station | — |
| OCN | Oceanside Municipal Airport | — |
| OFF | Offutt Air Force Base | — |
| OGD | Ogden Hinckley Airport | — |
| OGS | Ogdensburg International Airport | — |
| OKC | OKC Will Rogers World Airport | — |
| OLM | Olympia Regional Airport | — |
| ONT | Ontario International Airport | — |
| ONO | Ontario Municipal Airport | — |
| OGB | Orangeburg Municipal Airport | — |
| ESD | Orcas Island Airport | — |
| ORL | Orlando Executive Airport | — |
| MCO | Orlando International Airport | — |
| SFB | Orlando Sanford International Airport | — |
| OTM | Ottumwa Regional Airport | — |
| OWB | Owensboro Daviess County Airport | — |
| OXR | Oxnard Airport | — |
| WMH | Ozark Regional Airport | — |
| FMY | Page Field | — |
| PGA | Page Municipal Airport | — |
| PBI | Palm Beach International Airport | — |
| PSP | Palm Springs International Airport | — |
| PMD | Palmdale Regional Airport / USAF Plant 42 Airport | — |
| PAO | Palo Alto Airport | — |
| EAT | Pangborn Memorial Airport | — |
| PRB | Paso Robles Municipal Airport | — |
| BTV | Patrick Leahy Burlington International Airport | — |
| COF | Patrick Space Force Base | — |
| NHK | Patuxent River Naval Air Station (Trapnell Field) | — |
| PLN | Pellston Regional Airport of Emmet County Airport | — |
| PNS | Pensacola International Airport | — |
| AFW | Perot Field/Fort Worth Alliance Airport | — |
| PSG | Petersburg James A Johnson Airport | — |
| PHL | Philadelphia International Airport | — |
| TOP | Philip Billard Municipal Airport | — |
| APG | Phillips Army Air Field | — |
| PHX | Phoenix Sky Harbor International Airport | — |
| GSO | Piedmont Triad International Airport | — |
| PIR | Pierre Regional Airport | — |
| PBF | Pine Bluff Regional Airport, Grider Field | — |
| PGV | Pitt-Greenville Airport | — |
| PIT | Pittsburgh International Airport | — |
| PTU | Platinum Airport | — |
| PBG | Plattsburgh International Airport | — |
| PIH | Pocatello Regional Airport | — |
| PIZ | Point Lay LRRS Airport | — |
| NTD | Point Mugu Naval Air Station (Naval Base Ventura Co) | — |
| POE | Polk Army Air Field | — |
| PNC | Ponca City Regional Airport | — |
| POB | Pope Field | — |
| KPC | Port Clarence Coast Guard Station | — |
| PTH | Port Heiden Airport | — |
| VPZ | Porter County Municipal Airport | — |
| HIO | Portland Hillsboro Airport | — |
| PDX | Portland International Airport | — |
| PWM | Portland International Jetport | — |
| TTD | Portland Troutdale Airport | — |
| PSM | Portsmouth International Airport at Pease | — |
| PRC | Prescott Regional Airport - Ernest A. Love Field | — |
| PQI | Presque Isle International Airport | — |
| PVU | Provo Municipal Airport | — |
| PUB | Pueblo Memorial Airport | — |
| PUW | Pullman-Moscow Regional Airport | — |
| PGD | Punta Gorda Airport | — |
| LAF | Purdue University Airport | — |
| MLI | Quad City International Airport | — |
| NYG | Quantico Marine Corps Airfield / Turner Field | — |
| UIN | Quincy Regional Airport Baldwin Field | — |
| NCO | Quonset State Airport | — |
| BKW | Raleigh County Memorial Airport | — |
| RDU | Raleigh-Durham International Airport | — |
| PWY | Ralph Wenz Field | — |
| OTZ | Ralph Wien Memorial Airport | — |
| RND | Randolph Air Force Base | — |
| HIB | Range Regional Airport | — |
| RAP | Rapid City Regional Airport | — |
| RWL | Rawlins Municipal Airport/Harvey Field | — |
| RDG | Reading Regional Airport (Carl A Spaatz Field) | — |
| RBL | Red Bluff Municipal Airport | — |
| RDD | Redding Municipal Airport | — |
| HUA | Redstone Army Air Field | — |
| RWF | Redwood Falls Municipal Airport | — |
| RNO | Reno Tahoe International Airport | — |
| FRG | Republic Airport | — |
| RHI | Rhinelander Oneida County Airport | — |
| PVD | Rhode Island T. F. Green International Airport | — |
| RMG | Richard B Russell Airport | — |
| RIC | Richmond International Airport | — |
| AMA | Rick Husband Amarillo International Airport | — |
| LCK | Rickenbacker International Airport | — |
| RAL | Riverside Municipal Airport | — |
| ROA | Roanoke–Blacksburg Regional Airport | — |
| RDM | Roberts Field | — |
| WRB | Robins Air Force Base | — |
| RST | Rochester International Airport | — |
| RWI | Rocky Mount Wilson Regional Airport | — |
| BJC | Rocky Mountain Metropolitan Airport | — |
| MFR | Rogue Valley International-Medford Airport | — |
| DCA | Ronald Reagan Washington National Airport | — |
| STJ | Rosecrans Memorial Airport | — |
| ROW | Roswell Air Center Airport | — |
| RBY | Ruby Airport | — |
| RSL | Russell Municipal Airport | — |
| RUT | Rutland - Southern Vermont Regional Airport | — |
| SAC | Sacramento Executive Airport | — |
| SMF | Sacramento International Airport | — |
| MHR | Sacramento Mather Airport | — |
| STC | Saint Cloud Regional Airport | — |
| STP | Saint Paul Downtown Holman Field | — |
| SLE | Salem-Willamette Valley Airport/McNary Field | — |
| SLN | Salina Municipal Airport | — |
| SNS | Salinas Municipal Airport | — |
| SBY | Salisbury Ocean City Wicomico Regional Airport | — |
| SLC | Salt Lake City International Airport | — |
| SJT | San Angelo Regional Mathis Field | — |
| SAT | San Antonio International Airport | — |
| SBD | San Bernardino International Airport | — |
| SQL | San Carlos Airport | — |
| SAN | San Diego International Airport | — |
| OAK | San Francisco Bay Oakland International Airport | — |
| SFO | San Francisco International Airport | — |
| SBP | San Luis County Regional Airport | — |
| ALS | San Luis Valley Regional Airport/Bergman Field | — |
| SDP | Sand Point Airport | — |
| SBA | Santa Barbara Municipal Airport | — |
| SAF | Santa Fe Municipal Airport | — |
| SMX | Santa Maria Public Airport Captain G Allan Hancock Field | — |
| SMO | Santa Monica Municipal Airport | — |
| SRQ | Sarasota Bradenton International Airport | — |
| SAV | Savannah Hilton Head International Airport | — |
| SVA | Savoonga Airport | — |
| HYR | Sawyer County Airport | — |
| SCH | Schenectady County Airport | — |
| GLS | Scholes International At Galveston Airport | — |
| BLV | Scott AFB/Midamerica Airport | — |
| PAE | Seattle Paine Field International Airport | — |
| SEA | Seattle–Tacoma International Airport | — |
| MTC | Selfridge Air National Guard Base Airport | — |
| SWD | Seward Airport | — |
| GSB | Seymour Johnson Air Force Base | — |
| SSC | Shaw Air Force Base | — |
| SHD | Shenandoah Valley Regional Airport | — |
| SHR | Sheridan County Airport | — |
| SOW | Show Low Regional Airport | — |
| SHV | Shreveport Regional Airport | — |
| SDY | Sidney - Richland Regional Airport | — |
| SNY | Sidney Municipal Airport Lloyd W Carr Field | — |
| RUI | Sierra Blanca Regional Airport | — |
| FHU | Sierra Vista Municipal Airport / Libby Army Air Field | — |
| FBG | Simmons Army Air Field | — |
| FSD | Sioux Falls Regional Airport | — |
| SUX | Sioux Gateway Airport / Brigadier General Bud Day Field | — |
| SIT | Sitka Rocky Gutierrez Airport | — |
| INT | Smith Reynolds Airport | — |
| MQY | Smyrna Airport | — |
| SXQ | Soldotna Airport | — |
| ELD | South Arkansas Regional Airport at Goodwin Field | — |
| SBN | South Bend International Airport | — |
| LAA | Southeast Colorado Regional Airport | — |
| BRL | Southeast Iowa Regional Airport | — |
| MDH | Southern Illinois Airport | — |
| RSW | Southwest Florida International Airport | — |
| ABY | Southwest Georgia Regional Airport | — |
| OTH | Southwest Oregon Regional Airport | — |
| KLS | Southwest Washington Regional Airport | — |
| RKS | Southwest Wyoming Regional Airport | — |
| TIX | Space Coast Regional Airport | — |
| SVW | Sparrevohn LRRS Airport | — |
| SUS | Spirit of St Louis Airport | — |
| GEG | Spokane International Airport | — |
| SGF | Springfield Branson National Airport | — |
| SGH | Springfield-Beckley Municipal Airport | — |
| STG | St George Airport | — |
| SGU | St George Regional Airport | — |
| ALN | St Louis Regional Airport | — |
| SNP | St Paul Island Airport | — |
| SSI | St Simons Island Airport | — |
| STL | St. Louis Lambert International Airport | — |
| PIE | St. Petersburg Clearwater International Airport | — |
| SCE | State College Regional Airport | — |
| SWO | Stillwater Regional Airport | — |
| SSF | Stinson Municipal Airport | — |
| SCK | Stockton Metropolitan Airport | — |
| SGR | Sugar Land Regional Airport | — |
| SYR | Syracuse Hancock International Airport | — |
| TIW | Tacoma Narrows Airport | — |
| TKA | Talkeetna Airport | — |
| TLH | Tallahassee International Airport | — |
| TPA | Tampa International Airport | — |
| TSM | Taos Regional Airport | — |
| TLJ | Tatalina LRRS Airport | — |
| ANC | Ted Stevens Anchorage International Airport | — |
| TEX | Telluride Regional Airport | — |
| HUF | Terre Haute Regional Airport, Hulman Field | — |
| TEB | Teterboro Airport | — |
| TXK | Texarkana Regional Airport (Webb Field) | — |
| LJN | Texas Gulf Coast Regional Airport | — |
| CID | The Eastern Iowa Airport | — |
| OSU | The Ohio State University Airport - Don Scott Field | — |
| TVF | Thief River Falls Regional Airport | — |
| TIK | Tinker Air Force Base | — |
| DUT | Tom Madsen (Dutch Harbor) Airport | — |
| TPH | Tonopah Airport | — |
| FOE | Topeka Regional Airport | — |
| SUU | Travis Air Force Base | — |
| FPR | Treasure Coast International Airport | — |
| TTN | Trenton Mercer Airport | — |
| PSC | Tri Cities Airport | — |
| TRI | Tri-Cities Regional TN/VA Airport | — |
| HTS | Tri-State Airport / Milton J. Ferguson Field | — |
| TOI | Troy Municipal Airport at N Kenneth Campbell Field | — |
| TKF | Truckee Tahoe Airport | — |
| TCS | Truth or Consequences Municipal Airport | — |
| TUS | Tucson International Airport | — |
| TCC | Tucumcari Municipal Airport | — |
| TUL | Tulsa International Airport | — |
| RVS | Tulsa Riverside Airport | — |
| TUP | Tupelo Regional Airport | — |
| TCL | Tuscaloosa National Airport | — |
| HVN | Tweed New Haven Airport | — |
| TYR | Tyler Pounds Regional Airport | — |
| PAM | Tyndall Air Force Base | — |
| UKI | Ukiah Municipal Airport | — |
| UNK | Unalakleet Airport | — |
| CMI | University of Illinois Willard Airport | — |
| UOX | University Oxford Airport | — |
| VDZ | Valdez Pioneer Field | — |
| VLD | Valdosta Regional Airport | — |
| HRL | Valley International Airport | — |
| VNY | Van Nuys Airport | — |
| END | Vance Air Force Base | — |
| VBG | Vandenberg Space Force Base | — |
| FKL | Venango Regional Airport | — |
| VEL | Vernal Regional Airport | — |
| VRB | Vero Beach Regional Airport | — |
| MWA | Veterans Airport of Southern Illinois | — |
| VCT | Victoria Regional Airport | — |
| VIS | Visalia Municipal Airport | — |
| VOK | Volk Field | — |
| ACT | Waco Regional Airport | — |
| MUE | Waimea Kohala Airport | — |
| AIN | Wainwright Airport | — |
| ALW | Walla Walla Regional Airport | — |
| PAQ | Warren Bud Woods Palmer Municipal Airport | — |
| IAD | Washington Dulles International Airport | — |
| WWA | Wasilla Airport | — |
| ALO | Waterloo Regional Airport | — |
| ART | Watertown International Airport | — |
| ATY | Watertown Regional Airport | — |
| AUW | Wausau Downtown Airport | — |
| TBN | Waynesville-St. Robert Regional Airport-Forney Field | — |
| ENV | Wendover Airport | — |
| WWR | West Woodward Airport | — |
| HPN | Westchester County Airport | — |
| WST | Westerly State Airport | — |
| BFF | Western Neb. Rgnl/William B. Heilig Airport | — |
| BAF | Westfield-Barnes Regional Airport | — |
| CEF | Westover Metropolitan Airport / Westover Air Reserve Base | — |
| HLG | Wheeling Ohio County Airport | — |
| NUW | Whidbey Island Naval Air Station (Ault Field) | — |
| SZL | Whiteman Air Force Base | — |
| NSE | Whiting Field Naval Air Station - North | — |
| ICT | Wichita Dwight D. Eisenhower National Airport | — |
| SPS | Wichita Falls Municipal Airport / Sheppard Air Force Base | — |
| BRW | Wiley Post Will Rogers Memorial Airport | — |
| AVP | Wilkes-Barre/Scranton International Airport | — |
| HOU | William P. Hobby Airport | — |
| CLM | William R Fairchild International Airport | — |
| IPT | Williamsport Regional Airport | — |
| XWA | Williston Basin International Airport | — |
| YIP | Willow Run Airport | — |
| ILN | Wilmington Airpark | — |
| ILG | Wilmington Airport | — |
| ILM | Wilmington International Airport | — |
| INK | Winkler County Airport | — |
| WMC | Winnemucca Municipal Airport | — |
| INW | Winslow Lindbergh Regional Airport | — |
| OSH | Wittman Regional Airport | — |
| ORH | Worcester Regional Airport | — |
| WRL | Worland Municipal Airport | — |
| WRG | Wrangell Airport | — |
| FFO | Wright-Patterson Air Force Base | — |
| YKM | Yakima Air Terminal McAllister Field | — |
| YAK | Yakutat Airport | — |
| HDN | Yampa Valley Airport | — |
| CRW | Yeager Airport | — |
| WYS | Yellowstone Airport | — |
| COD | Yellowstone Regional Airport | — |
| YNG | Youngstown Warren Regional Airport | — |
| MYV | Yuba County Airport | — |
| YUM | Yuma International Airport / Marine Corps Air Station Yuma | — |
| ZZV | Zanesville Municipal Airport | — |