Explore Southwest Airlines SFO Terminal serves from Terminal 1 at San Francisco International Airport. The terminal is very accessible to passengers with check-in, dining options, baggage claim, and restrooms. The terminal is also well-equipped with seating areas, free Wi-Fi, and charging stations for a comfortable journey. Southwest Airlines offers numerous flights to destinations across the U.S. and beyond, making it one of the most popular airlines for passengers traveling from SFO.