The BART station is located in the International Terminal. The next step will show you how to find the station and get inside. If you arrive at a domestic terminal instead, it will only take a few minutes to get there.
A quick note: a few domestic flights actually arrive in the International Terminal, so don't assume that just because you came from somewhere else in the U.S. that you're arriving in a domestic terminal. Just ask someone if you're unsure.
Arriving in Domestic Terminal 3
If you arrive in Terminal 3, it's connected to the International Terminal by an interior walkway, which will be your quickest option. Just go up from the arrivals level to the departures level and look for signs that point to the International Terminal.
Arriving in Other Domestic Terminals
From the other domestic terminals, it may be easier to take the Air Train, which circles the airport, especially if you have a lot of luggage with you. Airport arrivals are on level 2 and Air Train is at level 4.
Go up one level to the departures area (where the ticket counters are) and look for signs like the one above. When you get to the Air Train station entrance, you'll go up one more level.
Air Train has two lines. The Red Line is the fastest way to get to the International Terminal, but the Blue Line will also get you where you want to go.
Get off Air Train at the International Terminal and Garage G. It’s clearly marked for BART, too.
Go down from the Air Train level to the Departures Level, then follow the directions in the next step to get to the BART station.