London Heathrow Airport (LHR) is the largest and busiest airport in the United Kingdom and one of the world's leading international airports. Located west of Central London, it serves as a major hub for British Airways and Virgin Atlantic, offering extensive global connections to destinations across every continent. Heathrow features four terminals and two runways, handling millions of passengers annually. Known for its scale and efficiency, it plays a crucial role in global air travel and is a key gateway to the UK.