What to know
United's SFO footprint is changing during Terminal 3 construction, making the flight-specific gate especially important.

Airport layout
SFO has Harvey Milk Terminal 1, Terminals 2 and 3, plus International A and G. Airside connectors now link the terminal complex after security.
Getting to the gate
Domestic and international portions of the same airline can use different terminals. Check the operating flight, not only the marketing airline.
Connections
Most terminals connect after security, but walking distances can be significant during Terminal 3 construction.
