London is a major international air transport hub with the largest city airspace in the world. Eight airports use the word London in their name, but most traffic passes through only five. London Heathrow Airport, in Hillingdon, West London, is the busiest airport in the world for international traffic, and is the major hub of the nation's flag carrier, British Airways. In March 2008 its fifth terminal was opened.There were plans for a third runway and a sixth terminal however these were cancelled by the Coalition Government on 12 May 2010.Similar traffic, with the addition of some low-cost short -haul flights, is also handled at London Gatwick Airport , located south of London in West Sussex.
Stansted Airport, situated north east of London in Essex, is the main UK hub for Ryanair and Luton Airport to the north of London in Bedfordshire, caters mostly for low-cost short-haul flights.London City Airport , the smallest and most central airport, is focused on business travellers, with a mixture of full service short-haul scheduled flights and considerable business jet traffic.