If you’re searching which terminal United Airlines uses at Heathrow, here’s the answer — United Airlines operates from Terminal 2, also known as The Queen’s Terminal, at London Heathrow Airport.
I recently flew with United from Heathrow, and I was really impressed by the experience. The check-in process at Terminal 2 was quick and well-organized, with plenty of staff around to guide passengers. The terminal is bright, spacious, and easy to navigate, making it perfect for stress-free travel.