United Airlines operates mainly from Terminal 3 at San Francisco International Airport (SFO) for domestic flights.
International flights use the International Terminal G, which is connected airside to Terminal 3.
1 How to Reach the Terminal
Follow these steps to reach United's SFO operations:
- Enter Terminal 3 for domestic United flights - Use International Terminal entrance for international departures - Locate United check-in counters in the appropriate terminal - Complete check-in and baggage procedures - Proceed through security checkpoints to gate areas
2 Check-In & Security
United check-in counters are prominently located in Terminal 3's ticketing hall.
International check-in facilities are available in the International Terminal.
TSA security checkpoints serve passengers heading to all United gate areas.
3 Departures
Domestic United flights depart from gates throughout Terminal 3's concourses.
International departures use gates in Terminal G's various boarding areas.
4 Arrivals & Baggage Claim
Domestic arrivals collect baggage in Terminal 3's baggage claim hall.
International passengers arrive through Terminal G and clear customs there.
5 Airside Connections
Terminal 3 and Terminal G are connected airside, making connections between domestic and international flights convenient.
United passengers can easily transfer between terminals without having to re-clear security.
6 Lounges
United Club lounges operate in both Terminal 3 and Terminal G.
Polaris lounges serve international business class passengers in Terminal G.
7 Ground Transportation
BART rail service provides direct connections from SFO to San Francisco and the Bay Area.
Rental car facilities are accessible via AirTrain from all terminals.