Which airport code is assigned to San Francisco?

The airport code assigned to San Francisco is SFO. This code follows the International Civil Aviation Organization (ICAO) and International Air Transport Association (IATA) standards for designating airports. Specifically, SFO is derived from the city name, making it easily recognizable for travelers and airline operations. Each airport code typically consists of three letters, and in the case of San Francisco International Airport, "S" stands for San, "F" represents Francisco, and "O" is an additional character used to complete the three-letter designator.

This naming convention enhances clarity and minimizes confusion between various airports, particularly in regions with similar or overlapping names. SFO is widely recognized among travelers and airline personnel, facilitating smoother transport management and communication.