How to Navigate San Francisco International Airport Inside & Out

You’re about to step into one of Northern California’s busiest airports, known for its sweeping views of the bay and unique terminal design. Knowing how to navigate the San Francisco airport helps you move quickly between terminals—and maybe even enjoy the airport along the way.

1. The terminals form a loop: The San Francisco Airport layout places all terminals along a circular roadway. If you’re driving or getting dropped off, make sure you know your terminal before entering the loop.
2. Most international flights leave from the International Terminal: Boarding Areas A and G handle the majority of international departures, but confirm your flight details because a few international flights may use the regular terminals.
3. All terminals connect after security: Once you pass through TSA, you can walk between every terminal and gate at SFO.

Reaching San Francisco International Airport by car is straightforward once you’re on U.S. Highway 101. The 101 is the main freeway following the coastline between San Francisco and Silicon Valley. On the 101, take the exit for the San Francisco International Airport, which feeds into the airport’s circular terminal roadway.

If you’re dropping off a rental car, look for signs for rental cars. SFO car rental providers, including Avis, are housed in the Rental Car Center, which is located between the terminals and long-term parking. If you’re heading from a terminal to Avis, you’ll want to take the AirTrain Blue Line to the Rental Car Center.

If you’re picking up a passenger or being dropped off, follow signs pointing to the terminals. Each terminal has clearly marked curbside areas for departures and arrivals.

San Francisco International Airport has four terminals: Harvey Milk Terminal 1, Terminal 2, Terminal 3, and the International Terminal. Each terminal has its own ticketing, security, and baggage claim areas.

After passing through TSA security screening, travelers can move between terminals using indoor walkways. The San Francisco Airport layout allows passengers to reach any gate without leaving the secure area, though walking from one end of the airport to the other can take some time. Pre-security, travelers can also move between terminals using the AirTrain.

Baggage claim areas are located in each terminal near the exits for ground transportation.

Looking for things to do in San Francisco Airport? Here are some unique offerings that you won’t want to miss:

1. SkyTerrace: Located in Terminal 2 before security, SkyTerrace provides open-air views of the airfield—great for plane spotting, stretching your legs, or getting some fresh air.
2. SFO Museum: One of the standout things to do in the San Francisco Airport is visiting the Aviation Museum and Library, located before security on the Departures Level of the International Terminal Main Hall.
3. Yoga Rooms: SFO has dedicated yoga rooms in Harvey Milk Terminal 1, Terminal 2, and Terminal 3.

Need a car once you arrive at SFO? Renting with Avis makes it easy to head straight into San Francisco, cross the bay, or take a drive along the California coast. It’s a simple way to travel beyond the airport without relying on transit schedules. Book now.