Joint Helicopter Command Flying Station Aldergrove or more simply JHFS Aldergrove is a Joint Helicopter Command flying station located 4.4 miles (7.1 km) south of Antrim, Northern Ireland and 18 miles (29 km) northwest of Belfast. The flying station adjoins Belfast International Airport, sometimes referred to simply as Aldergrove which is the name of the surrounding area. The station shared the Aldergrove runways but had its own separate facilities and helipad. The site was formerly RAF Aldergrove a Royal Air Force station which was in operation between 1918 and 2009.