RAF Northolt (IATA: NHT, ICAO: EGWU) is a Royal Air Force station in South Ruislip, 2 nautical miles (3.7 km; 2.3 mi)[3] from Uxbridge in the London Borough of Hillingdon, western Greater London, England, approximately 6 mi (10 km) north of Heathrow Airport. The station handles many private civil flights in addition to Air Force flights.[4] Northolt has one runway in operation, spanning 1,687 m × 46 m (5,535 ft × 151 ft), with a grooved asphalt surface.[3]