British Airways LHR Terminal British Airways primarily operates out of Terminal 5 (T5) at London Heathrow Airport (LHR), which serves as its main hub. Terminal 5, exclusively used by British Airways and its partner airline Iberia, is known for its state-of-the-art facilities and efficient design. Passengers can enjoy a variety of check-in options, including online check-in, self-service kiosks, and traditional check-in desks. For those traveling in business or first class, Fast Track security lanes are available to expedite the security process. Terminal 5 also boasts several luxurious lounges, such as the Galleries Club Lounges, the Galleries First Lounge, and the Concorde Room for First Class passengers, ensuring a comfortable and premium pre-flight experience.