Southwest Airlines at SFO Terminal Southwest Airlines operates out of Terminal 1 at San Francisco International Airport (SFO), offering convenient access for travelers flying with this popular carrier. Terminal 1 at SFO underwent recent renovations to enhance passenger comfort and efficiency, featuring modern amenities such as dining options, shops, and comfortable seating areas. Southwest Airlines' check-in counters and gates are easily accessible within the terminal, ensuring a smooth travel experience from check-in to boarding. Whether departing from or arriving at SFO, passengers flying Southwest can expect a well-organized terminal with clear signage and helpful staff, contributing to a pleasant journey overall.