London's Heathrow Airport is the largest and busiest airport in the United Kingdom. Located about 14 miles west of Central London, it serves as a major international gateway, connecting millions of passengers to destinations around the world. The airport has five terminals, each offering various amenities, shops, and dining options. Heathrow is a hub for several airlines, including British Airways, and handles over 80 million passengers annually. It features extensive transport links, including the Heathrow Express train service, which provides quick access to London Paddington Station. The airport is known for its commitment to sustainability and improving passenger experience.