ICAO		IATA		Other		Location
				IL18		Crystal Lake [Crystal Lake Holiday Inn Heliport], Illinois, US (28 mi / 45 km S)
				66IL		Marengo [Aerogrange Airport], Illinois, US (28 mi / 45 km SW)
				6IL2		Huntley [Phyllis Field], Illinois, US (29 mi / 46 km S)
KUES		UES		UES		Waukesha [Waukesha County Airport], Wisconsin, US (29 mi / 46 km N)
				3WI6		Clinton [Melin Farms Airport], Wisconsin, US (29 mi / 47 km W)
				3CK		Chicago/Lake In The Hills [Lake In The Hills Airport], Illinois, US (29 mi / 47 km S)
				7LL2		Waukegan [Vista Medical Center-East Heliport], Illinois, US (30 mi / 48 km SE)
				W11		Sullivan, Wisconsin, US (30 mi / 48 km NW)
				02IS		Libertyville [Advocate Condell Medical Center Heliport], Illinois, US (30 mi / 49 km SE)
KMKE		MKE		MKE		Milwaukee [General Mitchell Intl], Wisconsin, US (30 mi / 49 km NE)
				IL08		Barrington [Advocate Good Shepherd Hospital Heliport], Illinois, US (31 mi / 49 km S)
				0WI0		Milwaukee [Aurora St. Luke's Medical Center Heliport], Wisconsin, US (31 mi / 50 km NE)
				5LL7		Union [Funny Farm Airport], Illinois, US (31 mi / 50 km S)
				42IL		Union [Lynn Heliport], Illinois, US (31 mi / 50 km S)
				56IL		Caledonia [Lee Creek Airport], Illinois, US (31 mi / 50 km W)
				47WI		Fort Atkinson [Oakbrook Airport], Wisconsin, US (31 mi / 50 km NW)
				WI39		Oconomowoc [Aurora Summit Medical Center Heliport], Wisconsin, US (31 mi / 50 km N)
				IL36		Belvidere [Bob Walberg Field], Illinois, US (31 mi / 51 km SW)
				IL74		Huntley [Centegra Hospital-Huntley Heliport], Illinois, US (31 mi / 51 km S)
				2IL4		North Chicago [Abbvie Heliport], Illinois, US (32 mi / 51 km SE)