What Terminal Is British Airways at SFO? is a common question among travelers. Travelers can check in, go through security, and use a number of amenities at International Terminal A, where the airline operates. Before takeoff, passengers can unwind in the terminal's duty-free shops, restaurants, and lounges. A premium pre-flight experience is offered by the British Airways Lounge, which is only accessible to business and first class guests. The terminal's excellent access to transit services guarantees a simple arrival and departure procedure. The British Airways Terminal at SFO guarantees a comfortable and easy travel experience whether you're flying domestically or abroad.