| ABE | Lehigh Valley International Airport | Allentown | PA |
| ABI | Abilene, TX | Abilene | TX |
| ABQ | Albuquerque International Sunport | Albuquerque | NM |
| ABY | Albany, GA | Albany | GA |
| ACK | Nantucket, MA | Nantucket | MA |
| ACT | Waco, TX | Waco | TX |
| ACY | Atlantic City, NJ | Atlantic City | NJ |
| AEX | Alexandria International Airport | Alexandria | LA |
| AGS | Augusta, GA | Augusta | GA |
| ALB | Albany International Airport | Albany | NY |
| ALO | Waterloo, IA | Waterloo | IA |
| AMA | Amarillo International Airport | Amarillo | TX |
| ANC | Anchorage International Airport | Anchorage | AK |
| ASE | Aspen, CO | Aspen | CO |
| ATL | Atlanta International Airport | Atlanta | GA |
| ATW | Appleton, WI | Appleton | WI |
| ATY | Watertown, SD | Watertown | SD |
| AUS | Austin-Bergstrom International Airport | Austin | TX |
| AUW | Wausau, WI | Wausau | WI |
| AVL | Asheville, NC | Asheville | NC |
| AVP | Wilkes-Barre/Scranton International Airport | Avoca | PA |
| AZA | Mesa, AZ | Mesa | AZ |
| AZO | Kalamazoo/Battle Creek International Airport | Kalamazoo | MI |
| BDL | Bradley International Airport | Hartford | CT |
| BFL | Bakersfield, CA | Bakersfield | CA |
| BGR | Bangor International Airport | Bangor | ME |
| BHM | Birmingham International Airport | Birmingham | AL |
| BIL | Billings Logan International Airport | Billings | MT |
| BIS | Bismarck, ND | Bismarck | ND |
| BLD | Boulder City, NV | Boulder City | NV |
| BLI | Bellingham International Airport | Bellingham | WA |
| BLV | Belleville, IL | Belleville | IL |
| BMI | Central Illinois Regional Airport | Bloomington | IL |
| BNA | Nashville International Airport | Nashville | TN |
| BOI | Boise Airport | Boise | ID |
| BOS | Boston Logan International Airport | Boston | MA |
| BPT | Beaumont, TX | Beaumont | TX |
| BRD | Brainerd, MN | Brainerd | MN |
| BRO | Brownsville, TX | Brownsville | TX |
| BTR | Baton Rouge International Airport | Baton Rouge | LA |
| BTV | Burlington International Airport | Burlington | VT |
| BUF | Buffalo Niagara International Airport | Buffalo | NY |
| BUR | Burbank Bob Hope Airport | Burbank | CA |
| BWI | Baltimore / Washington International Airport | Baltimore | MD |
| BZN | Bozeman Gallatin Field Airport | Bozeman | MT |
| CAE | Columbia Metropolitan Airport | Columbia | SC |
| CAK | Akron-Canton Airport | Akron | OH |
| CHA | Chattanooga Metropolitan Airport | Chattanooga | TN |
| CHO | Charlottesville, VA | Charlottesville | VA |
| CHS | Charleston International Airport | Charleston | SC |
| CID | Cedar Rapids Eastern Iowa Airport | Cedar Rapids | IA |
| CIU | Sault Ste. Marie, MI | Sault Ste. Marie | MI |
| CLE | Cleveland Hopkins International Airport | Cleveland | OH |
| CLL | College Station, TX | College Station | TX |
| CLT | Charlotte/Douglas International Airport | Charlotte | NC |
| CMH | Port Columbus International Airport | Columbus | OH |
| CMI | Champaign, IL | Champaign | IL |
| COD | Cody, WY | Cody | WY |
| COS | Colorado Springs, CO | Colorado Springs | CO |
| COU | Columbia, MO | Columbia | MO |
| CPR | Casper, WY | Casper | WY |
| CRP | Corpus Christi International Airport | Corpus Christi | TX |
| CRW | Charleston Yeager Airport | Charleston | WV |
| CSG | Columbus, GA | Columbus | GA |
| CVG | Cincinnati/North Kentucky International Airport | Cincinnati | OH |
| CWA | Mosinee, WI | Mosinee | WI |
| DAB | Daytona Beach International Airport | Daytona Beach | FL |
| DAL | Dallas Love Field | Dallas | TX |
| DAY | Dayton International Airport | Dayton | OH |
| DCA | Ronald Reagan Washington National Airport | Arlington | VA |
| DEN | Denver International Airport | Denver | CO |
| DFW | Dallas/Fort Worth International Airport | Dallas | TX |
| DLH | Duluth International Airport | Duluth | MN |
| DRO | Durango, CO | Durango | CO |
| DSM | Des Moines International Airport | Des Moines | IA |
| DTW | Detroit Metro Airport | Detroit | MI |
| ECP | Panama City, FL | Panama City | FL |
| EGE | Vail, CO | Vail | CO |
| EKO | Elko, NV | Elko | NV |
| ELM | Elmira, NY | Elmira | NY |
| ELP | El Paso International Airport | El Paso | TX |
| ERI | Erie International Airport | Erie | PA |
| EUG | Eugene Airport | Eugene | OR |
| EVV | Evansville, IN | Evansville | IN |
| EWN | New Bern, NC | New Bern | NC |
| EWR | Newark Liberty International Airport | Newark | NJ |
| EYW | Key West, FL | Key West | FL |
| FAI | Fairbanks, AK | Fairbanks | AK |
| FAR | Hector International Airport | Fargo | ND |
| FAT | Fresno Air Terminal | Fresno | CA |
| FAY | Fayetteville, NC | Fayetteville | NC |
| FCA | Kalispell, MT | Kalispell | MT |
| FLL | Fort Lauderdale Hollywood International Airport | Fort Lauderdale | FL |
| FNT | Bishop International Airport | Flint | MI |
| FSD | Sioux Falls Regional Airport | Sioux Falls | SD |
| FSM | Fort Smith, AR | Fort Smith | AR |
| FWA | Fort Wayne International Airport | Fort Wayne | IN |
| GEG | Spokane International Airport | Spokane | WA |
| GFK | Grand Forks International Airport | Grand Forks | ND |
| GJT | Grand Junction, CO | Grand Junction | CO |
| GLH | Greenville, MS | Greenville | MS |
| GNV | Gainesville, FL | Gainesville | FL |
| GPT | Gulfport-Biloxi International Airport | Gulfport | MS |
| GRB | Austin Straubel International Airport | Green Bay | WI |
| GRR | Gerald R. Ford International Airport | Grand Rapids | MI |
| GSO | Piedmont Triad International Airport | Greensboro | NC |
| GSP | Greenville / Spartanburg Airport | Greenville | SC |
| GTF | Great Falls International Airport | Great Falls | MT |
| GTR | Columbus, MS | Columbus | MS |
| GUC | Gunnison, CO | Gunnison | CO |
| HIB | Hibbing, MN | Hibbing | MN |
| HLN | Helena Regional Airport | Helena | MT |
| HOU | Hobby Airport | Houston | TX |
| HPN | White Plains, NY | White Plains | NY |
| HRL | Harlingen, TX | Harlingen | TX |
| HSV | Huntsville International Airport | Huntsville | AL |
| HTS | Huntington, WV | Huntington | WV |
| IAD | Washington Dulles International Airport | Washington | DC |
| IAG | Niagara Falls, NY | Niagara Falls | NY |
| IAH | Bush Intercontinental Airport | Houston | TX |
| ICT | Wichita Mid-Continent Airport | Wichita | KS |
| IDA | Idaho Falls Regional Airport | Idaho Falls | ID |
| IFP | Bullhead City, AZ | Bullhead City | AZ |
| ILM | Wilmington, NC | Wilmington | NC |
| IND | Indianapolis International Airport | Indianapolis | IN |
| ITH | Ithaca, NY | Ithaca | NY |
| JAC | Jackson, WY | Jackson | WY |
| JAN | Jackson-Evers International Airport | Jackson | MS |
| JAX | Jacksonville International Airport | Jacksonville | FL |
| JFK | John F. Kennedy International Airport | Queens | NY |
| JLN | Joplin Regional Airport | Joplin | MO |
| JMS | Jamestown, ND | Jamestown | ND |
| JNU | Juneau, AK | Juneau | AK |
| KTN | Ketchikan, AK | Ketchikan | AK |
| LAN | Lansing, MI | Lansing | MI |
| LAS | Mccarran International Airport | Las Vegas | NV |
| LAX | Los Angeles International Airport | Los Angeles | CA |
| LBB | Lubbock, TX | Lubbock | TX |
| LCK | Columbus, OH | Columbus | OH |
| LEX | Blue Grass Airport | Lexington | KY |
| LFT | Lafayette Regional Airport | Lafayette | LA |
| LGA | La Guardia Airport | Queens | NY |
| LGB | Long Beach, CA | Long Beach | CA |
| LIT | Little Rock National Airport | Little Rock | AR |
| LNK | Lincoln, NE | Lincoln | NE |
| LRD | Laredo, TX | Laredo | TX |
| LSE | La Crosse, WI | La Crosse | WI |
| LWS | Lewiston, ID | Lewiston | ID |
| MAF | Midland International Airport | Midland | TX |
| MBS | Freeland, MI | Freeland | MI |
| MCI | Kansas City International Airport | Kansas City | MO |
| MCO | Orlando International Airport | Orlando | FL |
| MDT | Harrisburg International Airport | Harrisburg | PA |
| MDW | Chicago Midway Airport | Chicago | IL |
| MEM | Memphis Airport | Memphis | TN |
| MFE | Mcallen-Miller International Airport | McAllen | TX |
| MFR | Medford Rogue Valley International Airport | Medford | OR |
| MGM | Montgomery Regional Airport | Montgomery | AL |
| MHT | Manchester Airport | Manchester | NH |
| MIA | Miami International Airport | Miami | FL |
| MKE | General Mitchell International Airport | Milwaukee | WI |
| MLB | Melbourne International Airport | Melbourne | FL |
| MLI | Quad City International Airport | Moline | IL |
| MLU | Monroe, LA | Monroe | LA |
| MOB | Mobile Regional Airport | Mobile | AL |
| MOT | Minot International Airport | Minot | ND |
| MRY | Monterey, CA | Monterey | CA |
| MSN | Dane County Regional Airport | Madison | WI |
| MSO | Missoula International Airport | Missoula | MT |
| MSP | Minneapolis/St. Paul International Airport | Minneapolis | MN |
| MSY | New Orleans International Airport | New Orleans | LA |
| MTJ | Montrose, CO | Montrose | CO |
| MYR | Myrtle Beach Airport | Myrtle Beach | SC |
| OAJ | Jacksonville, NC | Jacksonville | NC |
| OAK | Oakland International Airport | Oakland | CA |
| OKC | Will Rogers World Airport | Oklahoma City | OK |
| OMA | Eppley Airfield | Omaha | NE |
| ONT | Ontario International Airport | Ontario | CA |
| ORD | Chicago O’hare International Airport | Chicago | IL |
| ORF | Norfolk International Airport | Norfolk | VA |
| PBG | Plattsburgh, NY | Plattsburgh | NY |
| PBI | Palm Beach International Airport | West Palm Beach | FL |
| PDX | Portland International Airport | Portland | OR |
| PHF | Newport News, VA | Newport News | VA |
| PHL | Philadelphia International Airport | Philadelphia | PA |
| PHX | Phoenix Sky Harbor International Airport | Phoenix | AZ |
| PIA | Peoria, IL | Peoria | IL |
| PIE | St. Petersburg, FL | St. Petersburg | FL |
| PIT | Pittsburgh International Airport | Pittsburgh | PA |
| PLN | Pellston, MI | Pellston | MI |
| PNS | Pensacola Regional Airport | Pensacola | FL |
| PSC | Tri-Cities Airport | Pasco | WA |
| PSM | Portsmouth, NH | Portsmouth | NH |
| PSP | Palm Springs, CA | Palm Springs | CA |
| PVD | T.F. Green Airport | Warwick | RI |
| PVU | Provo, UT | Provo | UT |
| PWM | Portland International Jetport | Portland | ME |
| RAP | Rapid City Regional Airport | Rapid City | SD |
| RDM | Roberts Field | Redmond | OR |
| RDU | Raleigh-Durham International Airport | Raleigh | NC |
| RFD | Greater Rockford Airport | Rockford | IL |
| RIC | Richmond International Airport | Richmond | VA |
| RNO | Reno-Tahoe International Airport | Reno | NV |
| ROA | Roanoke, VA | Roanoke | VA |
| ROC | Greater Rochester International Airport | Rochester | NY |
| RST | Rochester International Airport | Rochester | MN |
| RSW | Southwest Florida International Airport | Fort Myers | FL |
| SAF | Santa Fe, NM | Santa Fe | NM |
| SAN | San Diego International Airport | San Diego | CA |
| SAT | San Antonio International Airport | San Antonio | TX |
| SAV | Savannah/Hilton Head International Airport | Savannah | GA |
| SBA | Santa Barbara, CA | Santa Barbara | CA |
| SBN | South Bend Regional Airport | South Bend | IN |
| SBP | San Luis Obispo, CA | San Luis Obispo | CA |
| SCE | State College, PA | State College | PA |
| SCK | Stockton, CA | Stockton | CA |
| SDF | Louisville International Airport | Louisville | KY |
| SEA | Seattle/Tacoma International Airport | Seattle | WA |
| SFB | Orlando Sanford International Airport | Sanford | FL |
| SFO | San Francisco International Airport | San Francisco | CA |
| SGF | Springfield Branson Regional Airport | Springfield | MO |
| SGU | St. George, UT | St. George | UT |
| SHR | Sheridan, WY | Sheridan | WY |
| SHV | Shreveport Regional Airport | Shreveport | LA |
| SJC | San Jose International Airport | San Jose | CA |
| SJT | San Angelo, TX | San Angelo | TX |
| SLC | Salt Lake City International Airport | Salt Lake City | UT |
| SMF | Sacramento International Airport | Sacramento | CA |
| SNA | John Wayne Airport | Santa Ana | CA |
| SPI | Springfield, IL | Springfield | IL |
| SPS | Wichita Falls, TX | Wichita Falls | TX |
| SRQ | Sarasota, FL | Sarasota | FL |
| STL | Lambert-St. Louis International Airport | St. Louis | MO |
| STS | Santa Rosa, CA | Santa Rosa | CA |
| SUN | Hailey, ID | Hailey | ID |
| SWF | New Windsor, NY | New Windsor | NY |
| SYR | Syracuse Hancock International Airport | Syracuse | NY |
| TLH | Tallahassee Regional Airport | Tallahassee | FL |
| TOL | Swanton, OH | Swanton | OH |
| TOR | Torrington, WY | Torrington | WY |
| TPA | Tampa International Airport | Tampa | FL |
| TRI | Blountville, TN | Blountville | TN |
| TTN | Township, NJ | Township | NJ |
| TUL | Tulsa International Airport | Tulsa | OK |
| TUS | Tucson International Airport | Tucson | AZ |
| TVC | Traverse City, MI | Traverse City | MI |
| TXK | Texarkana, AR | Texarkana | AR |
| TYS | Mcghee Tyson Airport | Knoxville | TN |
| VPS | Fort Walton Beach Airport | Fort Walton Beach | FL |
| XNA | Northwest Arkansas Regional Airport | Bentonville | AR |
| YUM | Yuma, AZ | Yuma | AZ |