ICAO		IATA		Other		Location
				05C		Griffith [Griffith-Merrillville Airport], Indiana, US (53 mi / 85 km NE)
				04IL		Hudson [Schertz Aerial Service - Hudson Airport], Illinois, US (53 mi / 85 km SW)
				IN19		Crown Point [Franciscan Health Crown Point Hospital Heliport], Indiana, US (53 mi / 86 km E)
				IL88		Compton [Earl Barnickel Airport], Illinois, US (54 mi / 86 km NW)
				59IL		Maple Park [Ruder Airport], Illinois, US (54 mi / 87 km N)
				43II		Merrillville [Kirk Heliport], Indiana, US (55 mi / 88 km E)
				II57		Merrillville [Nipsco Southlake Complex Heliport], Indiana, US (55 mi / 88 km E)
		KKT		50I		Kentland [Muni], Indiana, US (55 mi / 88 km SE)
				95LL		Secor [Deckert Heliport], Illinois, US (55 mi / 88 km SW)
				LL35		Chicago [Chicago Fire Department Air Sea Rescue Heliport], Illinois, US (55 mi / 88 km NE)
				IL69		Chicago [First Area Police HDQTRS Heliport], Illinois, US (55 mi / 89 km NE)
KGYY		GYY		GYY		Gary [Gary/Chicago Intl], Indiana, US (55 mi / 89 km NE)
				IL87		Compton [W Davis Airport], Illinois, US (55 mi / 89 km NW)
				4IS3		Chicago [The University of Chicago Medicine Heliport], Illinois, US (55 mi / 89 km NE)
				72LL		Princeton [Foley Airport], Illinois, US (55 mi / 89 km W)
KDKB				DKB		De Kalb [De Kalb Taylor Muni], Illinois, US (55 mi / 89 km N)
				14LL		Melrose Park [Gottlieb Heliport], Illinois, US (55 mi / 89 km NE)
				IL53		Steward [Durin Airport], Illinois, US (56 mi / 90 km NW)
				68IL		Milford [Stichnoth Airport], Illinois, US (56 mi / 90 km SE)
				IS00		Lowpoint [Jay Schertz Farm Airport], Illinois, US (56 mi / 90 km SW)