Airport codes can be confusing; sometimes the code doesn’t even share any letters with the airport it refers to! The International Air Transport Association assigns these codes to airports, and they’re an important part of air travel. However, this alphabet soup can leave the average person’s head spinning. To help you out, we’ve put together this list of airport codes in the USA. The locations are listed alphabetically by city.

Airport Codes in the United States

City/State
Airport Name
Airport Code
Atlanta, Georgia Hartsfield-Jackson Atlanta International Airport ATL
Anchorage, Alaska Ted Stevens Anchorage International Airport ANC
Austin, Texas Austin-Bergstrom International Airport AUS
Baltimore, Maryland Baltimore/Washington International Airport BWI
Boston, Massachusetts Logan International Airport BOS
Charlotte, North Carolina Charlotte Douglas International Airport CLT
Chicago, Illinois Chicago Midway Airport MDW
Chicago, Illinois Chicago O’Hare International Airport ORD
Cincinnati, Ohio Cincinnati/Northern Kentucky International Airport CVG
Cleveland, Ohio Cleveland Hopkins International Airport CLE
Columbus, Ohio Port Columbus International Airport CMH
Dallas, Texas Dallas/Fort Worth International Airport (DFW Airport) DFW
Denver, Colorado Denver International Airport DEN
Detroit, Michigan Detroit Metropolitan Wayne County Airport DTW
Fort Lauderdale, Florida Fort Lauderdale/Hollywood International Airport FLL
Fort Myers, Florida Southwest Florida International Airport RSW
Hartford, Connecticut Bradley International Airport BDL
Honolulu, Hawaii Hawaii Honolulu International Airport HNL
Houston, Texas George Bush Intercontinental Airport IAH
Houston, Texas William P. Hobby Airport HOU
Indianapolis, Indiana Indianapolis International Airport IND
Kansas City, Missouri Kansas City International Airport MCI
Las Vegas, Nevada McCarran International Airport LAS
Los Angeles, California Los Angeles International Airport LAX
Memphis, Tennessee Memphis International Airport MEM
Miami, Florida Miami International Airport MIA
Minneapolis, Minnesota Minneapolis/St. Paul International Airport MSP
Nashville, Tennessee Nashville International Airport BNA
New Orleans, Louisiana Louis Armstrong International Airport MSY
New York, New York John F. Kennedy International Airport JFK
New York, New York LaGuardia International Airport LGA
Newark, New Jersey Newark Liberty International Airport EWR
Oakland, California Metropolitan Oakland International Airport OAK
Ontario, California Ontario International Airport ONT
Orlando, Florida Orlando International Airport MCO
Philadelphia, Pennsylvania Philadelphia International Airport PHL
Phoenix, Arizona Sky Harbor International Airport PHX
Pittsburgh, Pennsylvania Pittsburgh International Airport PIT
Portland, Oregon Portland International Airport PDX
Raleigh-Durham, North Carolina Raleigh-Durham International Airport RDU
Sacramento, California Sacramento International Airport SMF
Salt Lake City, Utah Salt Lake City International Airport SLC
San Antonio, Texas San Antonio International Airport SAT
San Diego, California Lindbergh Field International Airport SAN
San Francisco, California San Francisco International Airport SFO
San Jose, California Mineta San Jose International Airport SJC
Santa Ana, California John Wayne Airport, Orange County SNA
Seattle, Washington Seattle-Tacoma International Airport (Seatac Airport) SEA
St. Louis, Missouri Lambert-St. Louis International Airport STL
Tampa, Florida Tampa International Airport TPA
Washington, D.C. Dulles International Airport IAD
Washington, D.C. Ronald Reagan Washington National Airport DCA

Airport codes can bamboozle the unwary traveler. You don’t have to memorize the entire list of airport codes, but you should be familiar with the codes of airports you’ll be traveling to during your next vacation. It will be easier for you to understand the flight status boards at airports. Happy travels!