London Heathrow Airport (LHR) handled 83.9 million passengers in 2024, making it the UK's busiest airport and the fifth busiest worldwide. Located around 15 miles west of Central London, Heathrow connects to over 200 destinations across six continents through more than 89 airlines. British Airways and Virgin Atlantic use Heathrow as their main hub. The airport operates four passenger terminals (Terminals 2, 3, 4, and 5), each serving different airline alliances and carriers. Direct flights run to major cities including New York, Dubai, Singapore, Hong Kong, Los Angeles, and most European capitals. You can reach the airport via the Heathrow Express (15 minutes to Paddington), Elizabeth Line, Piccadilly Line Underground, or various bus and coach services.