What to know
Older travel guides may place Southwest in Terminal 1; SFO's current directory lists Terminal 2.
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.