What is the city code for San Diego, California?

The city code for San Diego, California, is SAN. This code is derived from the first three letters of the city's name, making it a straightforward and easily recognizable identifier for travelers and airlines. Each city served by airlines has unique codes assigned by the International Air Transport Association (IATA), which helps streamline ticketing, luggage handling, and in-flight services.

In the case of San Diego, utilizing SAN as the airport code reflects both the city's name and its well-known San Diego International Airport, which is the primary airport serving the area. This code aids passengers in quickly identifying their destination while navigating through booking systems and other travel-related services.