What is the city code for Boise, Idaho?

The city code for Boise, Idaho, is BOI. This code is derived from the name of the city itself, making it intuitive and easy to remember for travelers who may be flying in or out of Boise. Each airport is assigned a three-letter code by the International Air Transport Association (IATA), and in this case, the letters BOI serve as a direct shorthand for Boise.

The other codes listed do not correspond to Boise. BOS is the code for Boston, Massachusetts, BHM represents Birmingham, Alabama, and BWI is the code for Baltimore/Washington International Airport. This helps travelers quickly identify their destination or departure location based on the IATA codes used by airlines and travel services.