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, County Antrim and 18 miles (29 km) northwest of Belfast, Northern Ireland. The flying station adjoins Belfast International Airport, sometimes referred to simply as Aldergrove which is the name of the surrounding area.