British Airways Terminal Heathrow is mainly Terminal 5, the dedicated hub for most British Airways flights at Heathrow Airport. This terminal offers smooth check-in, fast security clearance, and premium lounges for a comfortable travel experience. Some British Airways flights also operate from Terminal 3, especially for select international routes and partner airline connections. Heathrow Airport provides excellent shopping, dining, and relaxation options for passengers. Terminal 5 ensures an efficient journey with self-service kiosks, quick boarding, and exclusive lounges. Always check your flight details on your ticket or the Heathrow website to confirm your correct terminal before traveling.