British Airways operates out of Terminal S at Seattle-Tacoma International Airport. The British Airways SEA Terminal is easily reached using the airport’s underground transit system. Travelers will find a variety of amenities, including dining, shopping, and relaxing seating areas. Eligible passengers can access the British Airways Lounge, which offers complimentary food, drinks, and Wi-Fi. The terminal provides efficient check-in, security screening, and boarding for international flights. Upon arrival, passengers can quickly move through customs and baggage claim. With direct flights to London Heathrow, British Airways ensures a smooth and enjoyable experience at the SEA Terminal.