It's Peter Alex. About Southwest Airlines SFO Terminal services, I'll tell you about them here. San Francisco International Airport's (SFO) Terminal 1 is home to Southwest Airlines. This terminal is up to date and tastefully furnished with eateries, retail stores, and cozy places for passengers to sit. It's simple to find your gate because security checks and boarding go smoothly. From SFO, Southwest provides domestic service to a number of American cities. The airport staff is quite polite and available to assist you if you need it. For travelers using Southwest Airlines, it's a handy terminal.