If you're flying with Southwest Airlines and wondering what terminal is Southwest Airlines at SFO, the answer is Terminal 1 at San Francisco International Airport (SFO). Specifically, Southwest operates out of Boarding Area B within Terminal 1, which is a modern and well-equipped section of the airport offering a range of traveler-friendly services. Classified under domestic flights, ... https://airlinesairportsterminals.com/southwest-airlines/sfo-terminal-san-francisco-airport/