ICAO		IATA		Other		Location
KGAI		GAI		GAI		Gaithersburg [Montgomery County Airpark], Maryland, US (37 mi / 60 km W)
				MD20		Taneytown [Makoutz Airport], Maryland, US (37 mi / 60 km NW)
				58M		Elkton [Claremont Airport], Maryland, US (38 mi / 61 km NE)
				JY26		Bridgeton [Bridgeton Heliport], New Jersey, US (38 mi / 61 km E)
				0MD7		Queenstown [The Aspen Institute Heliport], Maryland, US (38 mi / 61 km SE)
				1MD8		Westminster/Silver Run [Mayberry Run Airport], Maryland, US (38 mi / 61 km NW)
				27MD		Church Hill [Myles Landing Airport], Maryland, US (38 mi / 61 km SE)
				MD26		Westminster [Alyssa Taylor Heliport], Maryland, US (38 mi / 62 km NW)
				PS45		Red Lion [Mission Destiny Heliport], Pennsylvania, US (39 mi / 62 km N)
				8MD5		Libertytown [Flying H Farm Airport], Maryland, US (39 mi / 62 km W)
				25MD		Sudlersville [Whalen Field], Maryland, US (39 mi / 62 km E)
				MD1		Massey [Massey Aerodrome], Maryland, US (39 mi / 62 km E)
				04MD		Chesapeake City [Chesapeake City Heliport], Maryland, US (39 mi / 63 km E)
				93MD		Elkton [Knollwood Farm Airport], Maryland, US (39 mi / 63 km E)
				PLNM		Washington [President Lincoln and Soldiers' Home NM (President Lincoln and Soldiers' Home National Monument)], District of Columbia, US (39 mi / 63 km SW)
				DC07		Washington [MPD 5th Heliport], District of Columbia, US (39 mi / 63 km SW)
				37PN		Hanover [UPMC Hanover Hospital Heliport], Pennsylvania, US (40 mi / 64 km NW)
				60MD		Bethesda [Walter Reed National Medical Center Heliport], Maryland, US (40 mi / 64 km SW)
				MD22		Deale, Maryland, US (40 mi / 64 km S)
				DC17		Washington [Children's Hospital Heliport], District of Columbia, US (40 mi / 64 km SW)