San Francisco Airport AirTrain Guide: Red & Blue Lines
How to use SFO’s free AirTrain to move between terminals, reach BART, parking, rental cars and hotels, with practical step‑by‑step examples.
San Francisco International Airport
San Francisco International Airport is a major international airport serving San Francisco and the Bay Area, connecting travelers to destinations across the United States, Asia, Europe, and beyond through major airlines, passenger services, airport lounges, and convenient transport links to downtown San Francisco, Silicon Valley, and Northern California attractions.