ICAO		IATA		Other		Location
				4IL3		Stillman Valley (Byron) [Thrifty Acres Airport], Illinois, US (23 mi / 37 km W)
				3CK		Chicago/Lake In The Hills [Lake In The Hills Airport], Illinois, US (24 mi / 38 km E)
				25LL		Elgin [Advocate Sherman Hospital Heliport], Illinois, US (24 mi / 38 km E)
				IL85		Kaneville [Oakfield Airport], Illinois, US (24 mi / 38 km SE)
KRPJ				RPJ		Rochelle [Muni/Koritz Field], Illinois, US (24 mi / 38 km SW)
				8IL2		Harvard [Kirkpatrick Airport], Illinois, US (24 mi / 39 km N)
				IS20		Elgin [Presence St. Joseph Hospital - Elgin Heliport], Illinois, US (25 mi / 39 km E)
				LL79		Rockford [Severson Airport], Illinois, US (25 mi / 39 km NW)
				WS55		Sharon [Barten Airport], Wisconsin, US (25 mi / 40 km N)
				LL80		Rockford [Darrington Airport], Illinois, US (25 mi / 41 km NW)
				IL18		Crystal Lake [Crystal Lake Holiday Inn Heliport], Illinois, US (26 mi / 41 km E)
				44C		Beloit, Wisconsin, US (26 mi / 41 km N)
				4LL1		Steward [Staton Airport], Illinois, US (26 mi / 42 km SW)
				7V3		Walworth [Big Foot Airfield], Wisconsin, US (26 mi / 43 km N)
				10C		Greenwood/Wonder Lake [Galt Field], Illinois, US (27 mi / 43 km NE)
				0C2		Hinckley, Illinois, US (27 mi / 43 km S)
				2IL8		Elgin [Illinois Department of Transportation Heliport], Illinois, US (27 mi / 43 km E)
				IS23		South Elgin [Turner SPB], Illinois, US (27 mi / 44 km E)
				WS73		Walworth [Big Foot Farms Heliport], Wisconsin, US (27 mi / 44 km N)
				4LL0		Steward [Ranken Airport], Illinois, US (27 mi / 44 km SW)