United Airlines San Francisco Airport Terminal refers to the terminal at San Francisco International Airport (SFO) where United Airlines operates its flights. United Airlines primarily uses Terminal 3 at SFO for both domestic and international flights. The United Airlines San Francisco Airport Terminal is equipped with a wide range of amenities for passengers, including check-in counters, security, lounges, restaurants, and retail shops. This terminal is well-connected to the airport’s other terminals via a convenient AirTrain system, making it easy for travelers to move between gates. If you’re flying with United Airlines, the United Airlines San Francisco Airport Terminal (Terminal 3) will be your main point of departure or arrival.