London Stansted Airport (IATA: STN, ICAO: EGSS) is a passenger airport located at Stansted Mountfitchet in the District of Uttlesford in Essex, 48 km (30 mi) north-east of central London. It is 2.5 NM (4.6 km; 2.9 mi) north northeast of Bishop's Stortford and about 6 mi (9.7 km) outside Harlow.

Stansted is a hub for a number of major European low-cost carriers. It is the third busiest airport in the United Kingdom and is the third largest airport serving the London area after Heathrow and Gatwick; and it is one of London's five international airports along with Luton and London City. Stansted is owned and operated by BAA, which also owns and operates six other UK airports, including Heathrow and Gatwick, and is itself owned by an international consortium led by the Spanish Ferrovial Group.