Which Terminal is Southwest Airlines at SFO Southwest Airlines operates out of Terminal 1 at San Francisco International Airport (SFO). This terminal is located on the southern side of the airport and is known for its modern amenities and convenient layout. If you're flying with Southwest, you'll find check-in counters, gates, and various dining and shopping options all within Terminal 1. The terminal is easily accessible and well-signed, making it straightforward to navigate through the airport for your flight.
The Wall