Traveling through a busy airport like San Francisco International can be overwhelming, but if you’re flying with Southwest Airlines, you’re in for a smoother experience at the SFO Southwest Terminal. Located in Terminal 1—commonly known as the Harvey Milk Terminal—Southwest’s presence at SFO offers travelers a well-organized and welcoming environment designed for efficiency and comfort.

A Terminal Designed for the Modern Traveler

Terminal 1 at SFO has been thoughtfully renovated to provide a modern travel experience. From spacious waiting areas to natural lighting and eco-friendly design, the terminal reflects the spirit of San Francisco itself—progressive, efficient, and traveler-centric. Whether you’re arriving early for your flight or have time to kill during a layover, the terminal offers everything you need to stay comfortable.

Southwest Check-In and Security Process

At the , check-in is simple with both self-service kiosks and staffed counters. Southwest’s open seating policy means your boarding position depends on when you check in, so it’s a good idea to do it as early as possible—either online or at the airport.

Security lines here are generally well-managed, but it’s always wise to arrive at least 90 minutes before your departure, especially during peak travel hours. TSA PreCheck is available, which can speed things up for eligible travelers.