San Francisco International Airport SFOKSFO

San Francisco International Airport (SFO) is the Bay Area’s main international gateway and a major United Airlines hub, especially for West Coast and trans-Pacific flying; Alaska also has a significant hub presence. Star Alliance is the strongest alliance footprint because of United, but oneworld and SkyTeam are well represented across Terminal 1, Terminal 2 and International Terminal A. The airport handles both long-haul international services to Asia, Europe and beyond, and a dense domestic/regional network along the U.S. West Coast and across the country. For frequent flyers, the key practical point is that SFO now has post-security walkways linking all terminals, so domestic-to-international and many same-ticket transfers can usually be done on foot without reclearing security. BART is generally the cleanest city-center option: trains leave from the International Terminal/G Gates side and take about 30 minutes to downtown San Francisco, avoiding U.S. 101 traffic.

Timezone: America/Los_Angeles

Nonstop from here

Carrier network (who flies) — not availability or price; tap an airport for its awards.

Airport lounges

Lounge access is reference info; commission never ranks.

Official info

Official site

https://www.flysfo.com/

General

800.435.9736 or 650.821.8211

Lost & found

650.821.7014

As of 2026-06-20 — confirm with the airport.

Airport facts

ICAO

KSFO

Elevation

13 ft

Scheduled service

Yes

Runways

4

Longest runway

11870 ft

Terminals

To the city

• BART rapid rail → downtown San Francisco · BART operates directly from SFO to San Francisco and the East Bay; SFO BART Station is on the Departures/Ticketing Level of the International Terminal, G Gates side, and is reachable from all terminals via free AirTrain.
• SamTrans bus → San Francisco and Daly City · SamTrans Route 292 stops directly at airport terminals; SFO states SamTrans operates 24/7 from SFO with limited late-night service on ECR Owl and 397.
• Caltrain commuter rail → San Francisco via Millbrae transfer · Transfer between SFO and Caltrain at Millbrae using BART; check each system for schedules and timed transfers.

Bus / coach

SamTrans Route 292 stops directly at terminals; Routes EPX and 142 stop at the Rental Car Center; airporter buses depart from center island transportation zones.

Taxi

Taxis depart from designated taxi zones on roadway center islands at Arrivals/Baggage Claim Level of all terminals; taxi coordinators are stationed 7:00 a.m.-2:00 a.m.

Train / metro

BART rapid rail serves SFO directly from the International Terminal; Caltrain is available by transfer at Millbrae using BART.

Rideshare

Lyft/Uber domestic pickups are on Level 5 of the Domestic Garage; International Terminal pickups are at Departures/Ticketing Level roadway center island zones 14-17; Wingz domestic pickups are at Arrivals Level.

Airport services

Cities served

Hotels near the airport