List of three-letter airport codes covering the United States. Listing of three-letter United States Airport Codes listed by State / City – United States Airport Code Abbreviations. United States Airport Codes : Three Letter US Airport Codes This list includes 40 of the busiest by passenger traffic airports in the United States. US airports are amongst the busiest airports in the world. List of Top 40 Airports in US – World Airport Codes Ronald Reagan Washington National Airport Minneapolis–Saint Paul International Airportįort Lauderdale–Hollywood International Airportīaltimore–Washington International Thurgood Marshall Airport General Edward Lawrence Logan International Airport Hartsfield–Jackson Atlanta International Airport Double-check to make sure that they match up, or you and your bags will head off in different directions. Remember, you’re bags should be tagged with the same airport codes as your ticket. With that kind of search capacity, you should never be at a loss for the correct city code. Your ticket will use these letters, and it is important to know the airport code for your city of arrival, as well as all places where you are making a connection.Īnd some are so very close that one letter could mean you and your bags wind up in a different part of the world:Ī good reference site is World Airport Codes, which allows you to search by country name or abbreviation, city name, airport name, or airport code. Those three little letters comprise what is known as an airport designator code. Three little letters determine whether you arrive where you’re supposed to, or if you go astray. Before beginning any travel planning, make sure you know that accurate airport code for your departure and arrival city. But not paying attention to the airport code can mean you’re traveling to Long Beach, California (LGB) instead of New York LaGuardia (LGA). Some of the airport codes are obvious, others are not. Knowing these codes make it quicker to search for flights and fares online, and make it easier for you to double-check that your checked bags are going to the same place that you are. Frequent travelers may already be familiar with the three-letter codes which are used as airport designators.

Airport city code list