United Airlines operates out of Terminal 3 and International Terminal G at SFO, providing passengers with modern conveniences and smooth travel flow. United Airlines SFO Terminal features a wide range of food options, retail stores, and redesigned seating areas for improved comfort. Self-service kiosks and efficient bag-drop counters simplify the check-in process. International Terminal G supports long-haul travel with spacious gates and quick customs procedures. The Air Train links the terminals for easy transfers. Together, these facilities offer United travelers a seamless and stress-free airport experience at San Francisco International Airport.