London Heathrow Airport /

London Heathrow Airport or Heathrow (IATA: LHR, ICAO: EGLL), in the London Borough of Hillingdon, is the busiest airport in the United Kingdom and the fourth busiest airport in the world (as of 2011) in terms of total passenger traffic, handling more international passengers than any other airport around the globe. It is also the busiest airport in the European Union by passenger traffic and the second busiest in Europe given the number of traffic movements, with a figure surpassed only by Paris-Charles de Gaulle Airport. The airport is owned and operated by BAA Limited, who also own and operate five other UK airports. BAA is owned by ADI Limited, an international consortium led by the Spanish Ferrovial Group, which also includes Caisse de dépôt et placement du Québec and GIC Special Investments. Heathrow is a primary hub for BMI and British Airways as well as a base for Virgin Atlantic Airways. Heathrow lies 12 nautical miles (22 km; 14 mi) west of Central London, and has two parallel east-west runways along with four operational terminals on a site that covers 12.14 square kilometres (4.69 sq mi).