ICAO		IATA		Other		Location
				50IS		Freeport [FHN Memorial Hospital Heliport], Illinois, US (30 mi / 49 km W)
				42IL		Union [Lynn Heliport], Illinois, US (30 mi / 49 km E)
				C59		Delavan [Lake Lawn Airport], Wisconsin, US (30 mi / 49 km NE)
				7IL7		Hampshire [Edward Getzelman Airport], Illinois, US (31 mi / 50 km SE)
				55LL		Union [Sky Soaring Airport], Illinois, US (31 mi / 50 km SE)
				4LL7		Sycamore [Willadae Farms Airport], Illinois, US (31 mi / 50 km SE)
				07WI		Lake Geneva [Mercyhealth Walworth Heliport], Wisconsin, US (31 mi / 50 km NE)
KRPJ				RPJ		Rochelle [Muni/Koritz Field], Illinois, US (32 mi / 51 km S)
				54W		Albany, Wisconsin, US (32 mi / 51 km NW)
				4LL8		Sycamore [Colonial Acres Airport], Illinois, US (32 mi / 51 km SE)
				0IL6		De Kalb [Northwestern Memorial Healthcare Heliport], Illinois, US (32 mi / 51 km SE)
				11WI		Fulton [Fraundorfer Heliport], Wisconsin, US (32 mi / 52 km N)
				WI70		Elkhorn [Swan Airport], Wisconsin, US (32 mi / 52 km NE)
				IS80		De Kalb [Uncle Chuck's Airport], Illinois, US (33 mi / 53 km SE)
				31LL		Oregon [Wilco Heliport], Illinois, US (33 mi / 53 km SW)
KEFT				EFT		Monroe [Muni], Wisconsin, US (33 mi / 53 km NW)
				IL42		Woodstock [Centegra Hospital-Woodstock Heliport], Illinois, US (34 mi / 54 km E)
				6IL2		Huntley [Phyllis Field], Illinois, US (34 mi / 54 km E)
KDKB				DKB		De Kalb [De Kalb Taylor Muni], Illinois, US (34 mi / 54 km SE)
				2IL0		Shannon [Woodley North Airport], Illinois, US (34 mi / 55 km W)