What does the airport code SFO stand for?

The airport code SFO stands for San Francisco International Airport, which is located in California. This code is part of the International Civil Aviation Organization (ICAO) and International Air Transport Association (IATA) coding systems, which are used globally to identify airports. San Francisco is one of the major cities in California and is well-known for its iconic landmarks, such as the Golden Gate Bridge and Alcatraz Island, making the airport a significant hub for both domestic and international flights.

The other options represent different airport codes for other cities. San Jose, also in California, has the airport code SJC; Phoenix, Arizona, is represented by PHX; and Puerto Vallarta, Mexico, is referenced as PVR. Each of these cities corresponds to a unique identifier, ensuring clarity and accuracy in air travel operations.