Airport Codes
- ABE - Allentown, PA
- ABI - Abilene, TX
- ABL - Ambler, AK
- ABQ - Albuquerque, NM
- ABR - Aberdeen, SD
- ABY - Albany, GA
- ACK - Nantucket, MA
- ACT - Waco, TX
- ACV - Arcata, CA
- ACY - Atlantic City, NJ
- ADQ - Kodiak, AK
- AET - Allakaket, AK
- AEX - Alexandria, LA
- AGS - Augusta, GA
- AHN - Athens, GA
- AIA - Alliance, NE
- AIN - Wainwright, AK
- ALB - Albany, NY
- ALE - Alpine, TX
- ALM - Alamogordo, NM
- ALO - Waterloo, IA
- ALS - Alamosa, CO
- ALW - Walla Walla, WA
- AMA - Amarillo, TX
- ANB - Anniston, AL
- ANC - Anchorage, AK
- ANI - Aniak, AK
- ANV - Anvik, AK
- AOO - Altoona/Martinsburg, PA
- APF - Naples, FL
- APN - Alpena, MI
- ART - Watertown, NY
- ASE - Aspen, CO
- ATL - Atlanta, GA
- ATW - Appleton, WI
- ATY - Watertown, SD
- AUG - Augusta, ME
- AUS - Austin, TX
- AVL - Asheville/Hendersonville, NC
- AVP - Wilkes Barre/Scranton, PA
- AZO - Kalamazoo, MI
- BDL - Hartford, CT
- BDR - Bridgeport, CT
- BED - Bedford, MA
- BEH - Benton Harbor, MI
- BET - Bethel, AK
- BFD - Bradford, PA
- BFF - Scottsbluff, NE
- BFL - Bakersfield, CA
- BGM - Binghamton/Endicott/Johnson City, NY
- BGR - Bangor, ME
- BHB - Bar Harbor, ME
- BHM - Birmingham, AL
- BIL - Billings, MT
- BIS - Bismarck, ND
- BJI - Bemidji, MN
- BKG - Branson, MO
- BKW - Beckley, WV
- BKX - Brookings, SD
- BLF - Bluefield, WV
- BLI - Bellingham, WA
- BMG - Bloomington, IN
- BMI - Bloomington, IL
- BNA - Nashville, TN
- BOI - Boise, ID
- BOS - Boston, MA
- BPT - Beaumont, TX
- BQK - Brunswick, GA
- BRD - Brainerd, MN
- BRL - Burlington, IA
- BRO - Brownsville, TX
- BRW - Barrow, AK
- BTM - Butte, MT
- BTR - Baton Rouge, LA
- BTV - Burlington, VT
- BUF - Buffalo, NY
- BUR - Burbank, CA
- BWI - Baltimore, MD
- BZN - Bozeman, MT
- CAE - Columbia, SC
- CAK - Akron/Canton, OH
- CBE - Cumberland, MD
- CDC - Cedar City, UT
- CDH - Camden, AR
- CDR - Chadron, NE
- CDV - Cordova, AK
- CEC - Crescent City, CA
- CEZ - Cortez, CO
- CGA - Craig, AK
- CGI - Cape Girardeau, MO
- CHA - Chattanooga, TN
- CHO - Charlottesville, VA
- CHS - Charleston, SC
- CIC - Chico, CA
- CID - Cedar Rapids, IA
- CIU - Sault Ste Marie, MI
- CKB - Clarksburg, WV
- CLD - Carlsbad, CA
- CLE - Cleveland, OH
- CLL - College Station, TX
- CLM - Port Angeles, WA
- CLT - Charlotte, NC
- CMH - Columbus, OH
- CMI - Champaign, IL
- CMX - Hancock, MI
- CNM - Carlsbad, NM
- CNY - Moab, UT
- COS - Colorado Springs, CO
- COU - Columbia, MO
- CPR - Casper, WY
- CRP - Corpus Christi, TX
- CRW - Charleston, WV
- CSG - Columbus, GA
- CVG - Cincinnati, OH
- CVN - Clovis, NM
- CWA - Wausau, WI
- CYS - Cheyenne, WY
- DAB - Daytona Beach, FL
- DAL - Dallas, TX
- DAN - Danville, VA
- DAY - Dayton, OH
- DBQ - Dubuque, IA
- DCA - Washington, DC
- DDC - Dodge City, KS
- DEC - Decatur, IL
- DEN - Denver, CO
- DFW - Dallas/Fort Worth, TX
- DHN - Dothan, AL
- DIK - Dickinson, ND
- DLH - Duluth, MN
- DNV - Danville, IL
- DRO - Durango, CO
- DRT - Del Rio, TX
- DSI - Destin, FL
- DSM - Des Moines, IA
- DTW - Detroit, MI
- DUJ - Du Bois, PA
- DUT - Dutch Harbor, AK
- EAR - Kearney, NE
- EAT - Wenatchee, WA
- EAU - Eau Claire, WI
- ECP - Panama City, FL
- EEN - Keene/Brattleboro, NH
- EFD - Houston, TX
- EGE - Vail/Eagle, CO
- EKO - Elko, NV
- ELD - El Dorado, AR
- ELM - Elmira/Corning, NY
- ELP - El Paso, TX
- ELY - Ely, NV
- ENA - Kenai, AK
- ERI - Erie, PA
- ESC - Escanaba, MI
- ESD - Eastsound, WA
- EUG - Eugene, OR
- EVV - Evansville, IN
- EWB - New Bedford/Fall River, MA
- EWN - New Bern, NC
- EWR - Newark, NJ
- EYW - Key West, FL
- FAI - Fairbanks, AK
- FAR - Fargo, ND
- FAT - Fresno, CA
- FAY - Fayetteville, NC
- FCA - Kalispell, MT
- FFM - Fergus Falls, MN
- FHU - Fort Huachuca/Sierra Vista, AZ
- FKL - Franklin, PA
- FLG - Flagstaff, AZ
- FLL - Fort Lauderdale, FL
- FLO - Florence, SC
- FMN - Farmington, NM
- FNL - Fort Collins/Loveland, CO
- FNT - Flint, MI
- FOD - Fort Dodge, IA
- FOE - Topeka, KS
- FRD - Friday Harbor, WA
- FRM - Fairmont, MN
- FSD - Sioux Falls, SD
- FSM - Fort Smith, AR
- FWA - Fort Wayne, IN
- FYV - Fayetteville, AR
- GAL - Galena, AK
- GBD - Great Bend, KS
- GBG - Galesburg, IL
- GCC - Gillette, WY
- GCK - Garden City, KS
- GCN - Grand Canyon, AZ
- GDV - Glendive, MT
- GEG - Spokane, WA
- GFK - Grand Forks, ND
- GGG - Longview/Gladewater/Kilgore, TX
- GGW - Glasgow, MT
- GJT - Grand Junction, CO
- GLD - Goodland, KS
- GLS - Galveston, TX
- GLV - Golovin, AK
- GNV - Gainesville, FL
- GON - Groton/New London, CT
- GPT - Gulfport, MS
- GRB - Green Bay, WI
- GRI - Grand Island, NE
- GRR - Grand Rapids, MI
- GSO - Greensboro/High Point, NC
- GSP - Greenville/Spartanburg, SC
- GTF - Great Falls, MT
- GTR - Columbus, MS
- GUC - Gunnison, CO
- GUP - Gallup, NM
- GYY - Gary, IN
- HDN - Hayden, CO
- HGR - Hagerstown, MD
- HHH - Hilton Head, SC
- HIB - Hibbing/Chisholm, MN
- HKY - Hickory, NC
- HLN - Helena, MT
- HNH - Hoonah, AK
- HNL - Honolulu, HI
- HNS - Haines, AK
- HOB - Hobbs, NM
- HOM - Homer, AK
- HON - Huron, SD
- HOT - Hot Springs, AR
- HOU - Houston, TX
- HPB - Hooper Bay, AK
- HPN - Westchester County, NY
- HPV - Kauai Island, HI
- HRL - Harlingen, TX
- HRO - Harrison, AR
- HSI - Hastings, NE
- HSV - Huntsville/Decatur, AL
- HTS - Huntington/Ashland, WV
- HUF - Terre Haute, IN
- HUM - Houma, LA
- HVN - New Haven, CT
- HVR - Havre, MT
- HYA - Hyannis, MA
- HYG - Hydaburg, AK
- HYS - Hays, KS
- IAD - Washington, DC
- IAH - Houston, TX
- ICT - Wichita, KS
- IDA - Idaho Falls, ID
- IFP - Bullhead City, AZ
- IGM - Kingman, AZ
- ILE - Killeen, TX
- ILI - Iliamna, AK
- ILM - Wilmington, NC
- IMT - Iron Mountain, MI
- IND - Indianapolis, IN
- INL - International Falls, MN
- INT - Winston-Salem, NC
- IPL - Imperial, CA
- IPT - Williamsport, PA
- ISN - Williston, ND
- ISO - Kinston, NC
- ISP - Islip, NY
- ITH - Ithaca, NY
- ITO - Hilo, HI
- IWD - Ironwood, MI
- IYK - Inyokern, CA
- JAC - Jackson Hole, WY
- JAN - Jackson, MS
- JAX - Jacksonville, FL
- JBR - Jonesboro, AR
- JFK - New York, NY
- JHM - Kapalua, HI
- JHW - Jamestown, NY
- JLN - Joplin, MO
- JMC - Sausalito, CA
- JMS - Jamestown, ND
- JNU - Juneau, AK
- JRA - New York City, NY
- JST - Johnstown, PA
- KAE - Kake, AK
- KAL - Kaltag, AK
- KCG - Chignik, AK
- KCL - Chignik, AK
- KEH - Kenmore Air Harbor, WA
- KLW - Klawock, AK
- KOA - Kona, HI
- KPN - Kipnuk, AK
- KTN - Ketchikan, AK
- LAF - Lafayette, IN
- LAN - Lansing, MI
- LAR - Laramie, WY
- LAS - Las Vegas, NV
- LAW - Lawton, OK
- LAX - Los Angeles, CA
- LBB - Lubbock, TX
- LBE - Latrobe, PA
- LBF - North Platte, NE
- LBL - Liberal, KS
- LCH - Lake Charles, LA
- LEB - Lebanon/Hanover/White River, NH
- LEX - Lexington, KY
- LFT - Lafayette/New Iberia, LA
- LGA - New York, NY
- LGB - Long Beach, CA
- LIH - Kauai Island, HI
- LIT - Little Rock, AR
- LKE - Seattle, WA
- LLY - Mount Holly, NJ
- LMT - Klamath Falls, OR
- LNK - Lincoln, NE
- LNS - Lancaster, PA
- LNY - Lanai City, HI
- LRD - Laredo, TX
- LRU - Las Cruces, NM
- LSE - La Crosse, WI
- LWB - Greenbrier, WV
- LWS - Lewiston, ID
- LWT - Lewistown, MT
- LYH - Lynchburg, VA
- MAF - Midland/Odessa, TX
- MBL - Manistee, MI
- MBS - Midland/Bay City/Saginaw, MI
- MCE - Merced, CA
- MCG - Mc Grath, AK
- MCI - Kansas City, MO
- MCK - Mc Cook, NE
- MCN - Macon, GA
- MCO - Orlando, FL
- MCW - Mason City, IA
- MDH - Carbondale, IL
- MDT - Harrisburg, PA
- MDW - Chicago, IL
- MEI - Meridian, MS
- MEM - Memphis, TN
- MFE - Mc Allen, TX
- MFR - Medford, OR
- MGM - Montgomery, AL
- MGW - Morgantown, WV
- MHK - Manhattan, KS
- MHT - Manchester, NH
- MIA - Miami, FL
- MIE - Muncie, IN
- MKC - Kansas City, MO
- MKE - Milwaukee, WI
- MKG - Muskegon, MI
- MKK - Hoolehua, HI
- MKL - Jackson, TN
- MLB - Melbourne, FL
- MLI - Moline, IL
- MLS - Miles City, MT
- MLU - Monroe, LA
- MMH - Mammoth Lakes, CA
- MMU - Morristown, NJ
- MNM - Menominee, MI
- MOB - Mobile, AL
- MOD - Modesto, CA
- MOT - Minot, ND
- MPB - Miami, FL
- MQT - Marquette, MI
- MRK - Marco Island, FL
- MRY - Monterey, CA
- MSL - Muscle Shoals, AL
- MSN - Madison, WI
- MSO - Missoula, MT
- MSP - Minneapolis, MN
- MSS - Massena, NY
- MSY - New Orleans, LA
- MTH - Marathon, FL
- MTJ - Montrose, CO
- MVN - Mount Vernon, IL
- MVY - Marthas Vineyard, MA
- MWA - Marion, IL
- MYR - Myrtle Beach, SC
- OAJ - Jacksonville, NC
- OAK - Oakland, CA
- OFK - Norfolk, NE
- OGG - Kahului, HI
- OGS - Ogdensburg, NY
- OKC - Oklahoma City, OK
- OLF - Wolf Point, MT
- OMA - Omaha, NE
- OME - Nome, AK
- ONT - Ontario, CA
- OOK - Toksook Bay, AK
- OPF - Miami, FL
- ORD - Chicago, IL
- ORF - Norfolk, VA
- ORH - Worcester, MA
- ORL - Orlando, FL
- OSH - Oshkosh, WI
- OTH - North Bend, OR
- OTM - Ottumwa, IA
- OTZ - Kotzebue, AK
- OWB - Owensboro, KY
- OWD - Norwood, MA
- OXR - Oxnard/Ventura, CA
- PAH - Paducah, KY
- PBI - West Palm Beach, FL
- PDT - Pendleton, OR
- PDX - Portland, OR
- PFN - Panama City, FL
- PGA - Page, AZ
- PGV - Greenville, NC
- PHF - Newport News/Williamsburg/Hampton, VA
- PHL - Philadelphia, PA
- PHO - Point Hope, AK
- PHX - Phoenix, AZ
- PIA - Peoria, IL
- PIB - Laurel, MS
- PIE - St Petersburg/Clearwater, FL
- PIH - Pocatello, ID
- PIR - Pierre, SD
- PIT - Pittsburgh, PA
- PKB - Parkersburg/Marietta, WV
- PLB - Plattsburgh, NY
- PLN - Pellston, MI
- PMD - Palmdale, CA
- PNC - Ponca City, OK
- PNS - Pensacola, FL
- POU - Poughkeepsie, NY
- PQI - Presque Isle, ME
- PRC - Prescott, AZ
- PSC - Pasco, WA
- PSG - Petersburg, AK
- PSM - Portsmouth, NH
- PSP - Palm Springs, CA
- PUB - Pueblo, CO
- PUW - Pullman, WA
- PVC - Provincetown, MA
- PVD - Providence, RI
- PVU - Provo, UT
- PWK - Chicago, IL
- PWM - Portland, ME
- PWT - Bremerton, WA
- QBF - Vail/Eagle, CO
- QKB - Breckenridge, CO
- RAP - Rapid City, SD
- RCE - Roche Harbor, WA
- RDD - Redding, CA
- RDG - Reading, PA
- RDM - Redmond, OR
- RDU - Raleigh/Durham, NC
- RFD - Rockford, IL
- RHI - Rhinelander, WI
- RIC - Richmond, VA
- RIW - Riverton, WY
- RKD - Rockland, ME
- RKS - Rock Springs, WY
- RNO - Reno, NV
- ROA - Roanoke, VA
- ROC - Rochester, NY
- ROW - Roswell, NM
- RST - Rochester, MN
- RSW - Fort Myers, FL
- RUI - Ruidoso, NM
- RUT - Rutland, VT
- RWI - Rocky Mount, NC
- SAF - Santa Fe, NM
- SAN - San Diego, CA
- SAT - San Antonio, TX
- SAV - Savannah, GA
- SBA - Santa Barbara, CA
- SBN - South Bend, IN
- SBP - San Luis Obispo, CA
- SBY - Salisbury, MD
- SCE - State College, PA
- SDF - Louisville, KY
- SDX - Sedona, AZ
- SDY - Sidney, MT
- SEA - Seattle, WA
- SFO - San Francisco, CA
- SGF - Springfield, MO
- SGU - Saint George, UT
- SGY - Skagway, AK
- SHD - Staunton, VA
- SHR - Sheridan, WY
- SHV - Shreveport, LA
- SIT - Sitka, AK
- SJC - San Jose, CA
- SJT - San Angelo, TX
- SLC - Salt Lake City, UT
- SLE - Salem, OR
- SLK - Saranac Lake, NY
- SLN - Salina, KS
- SMF - Sacramento, CA
- SMX - Santa Maria, CA
- SNA - Santa Ana, CA
- SOP - Southern Pines, NC
- SOW - Show Low, AZ
- SPI - Springfield, IL
- SPS - Wichita Falls, TX
- SPW - Spencer, IA
- SRQ - Sarasota/Bradenton, FL
- STC - Saint Cloud, MN
- STL - St Louis, MO
- STS - Santa Rosa, CA
- SUE - Sturgeon Bay, WI
- SUN - Sun Valley/Hailey, ID
- SVC - Silver City, NM
- SWF - Newburgh/Poughkeepsie, NY
- SYR - Syracuse, NY
- TBN - Fort Leonard Wood, MO
- TCL - Tuscaloosa, AL
- TEX - Telluride, CO
- TLH - Tallahassee, FL
- TOL - Toledo, OH
- TPA - Tampa, FL
- TPL - Temple, TX
- TRI - Bristol/Johnson City/Kingsport, TN
- TTN - Trenton, NJ
- TUL - Tulsa, OK
- TUP - Tupelo, MS
- TUS - Tucson, AZ
- TVC - Traverse City, MI
- TVF - Thief River Falls, MN
- TVL - South Lake Tahoe, CA
- TWF - Twin Falls, ID
- TXK - Texarkana, AR
- TYR - Tyler, TX
- TYS - Knoxville, TN
- UCA - Utica, NY
- UIN - Quincy, IL
- VCT - Victoria, TX
- VDZ - Valdez, AK
- VEL - Vernal, UT
- VGT - Las Vegas, NV
- VIS - Visalia, CA
- VLD - Valdosta, GA
- VPS - Valparaiso, FL
- VRB - Vero Beach, FL (No scheduled service, 7/2010)
- WBU - Boulder, CO (No scheduled service, 7/2010)
- WDG - Enid, OK (No scheduled service, 7/2010)
- WMH - Mountain Home, AR (No scheduled service, 7/2010)
- WNA - Napakiak, AK (No scheduled service, 7/2010)
- WRL - Worland, WY
- YKM - Yakima, WA
- YNG - Youngstown, OH (No scheduled service, 7/2010)
- YUM - Yuma, AZ