San Diego International Airport, formerly known as Lindbergh Field, is an international airport three miles northwest of downtown San Diego, California, United States. It is owned and operated by the San Diego County Regional Airport Authority. The airport covers 663 acres (268 ha) of land and is ranked the third busiest airport in California in terms of passenger traffic.

An IATA airport code, also known as an IATA location identifier, IATA station code, or simply a location identifier, is a three-letter geocode designating many airports and metropolitan areas around the world, defined by the International Air Transport Association (IATA). The characters prominently displayed on baggage tags attached at airport check-in desks are an example of a way these codes are used.