What Terminal is Gulf Air at LHR? Gulf Air operates from Terminal 4 at Heathrow Airport. This modern and efficient terminal provides a comfortable experience for both departing and arriving passengers. Terminal 4 features spacious check-in areas, fast-track security for eligible travelers, and a variety of shopping and dining options. Gulf Air’s premium passengers can also enjoy access to exclusive lounges, offering relaxation before their flight. The terminal is designed for convenience, with clear signage and helpful staff to ensure a smooth travel experience. If you’re flying with Gulf Air, head straight to Terminal 4 at Heathrow for a streamlined journey.