Key Facts About London Heathrow Airport A Leading Global Hub Located approximately 12 miles west of Central London, London Heathrow Airport (IATA: LHR, ICAO: EGLL) stands as the largest and busiest airport in the United Kingdom. Notably, it also handles the most international passengers of any airport worldwide. Ownership and Operations Heathrow is managed and operated by BAA, ensuring efficient and smooth operations. This premier airport serves as a primary hub for several major airlines. Infrastructure The airport boasts two primary runways and currently four operational terminals, catering to millions of passengers annually. This robust infrastructure enables it to manage a high volume of both domestic and international flights.