The SFO Southwest terminal is located in Terminal 1, also known as the Harvey Milk Terminal. This terminal has recently undergone major renovations, making it one of the most modern and passenger-friendly areas of the airport. Its design combines open spaces, natural lighting, and sustainable features, ensuring a pleasant experience for travelers. https://terminalsworld.com/airlines/southwest-airlines/southwest-airlines-san-francisco-international-airport-sfo-terminal/