London Stansted Airport is located about 50km from the centre of London. The airport is a hub for a number of European low cost airlines and is the largest base for Ryanair with over 100 destinations served by the airline. London Stansted Airport is the third largest airport in the United Kingdom. There is a railway station under the terminal with rail links to Cambridge and Leicester and an express service to London with trains running every 15minutes with a travelling time of 45 minutes.