The Southwest Airlines section of San Francisco’s airport has really improved in recent years. The terminal offers plenty of natural lighting, friendly staff, and easy access to restaurants. I particularly loved that the restrooms and boarding gates were close to one another, saving time for passengers with tight connections. I found this helpful write-up about southwest terminal sfo ... https://terminalsworld.com/airlines/southwest-airlines/southwest-airlines-san-francisco-international-airport-sfo-terminal/