ICAO		IATA		Other		Location
				8IL5		Pecatonica [O'Connor Field], Illinois, US (43 mi / 69 km W)
				WS74		Watertown [Al's Airway Airport], Wisconsin, US (43 mi / 69 km N)
				IS12		Bartlett [Urso Heliport], Illinois, US (43 mi / 70 km SE)
				49WI		Watertown [Watertown Medical Center Heliport], Wisconsin, US (44 mi / 71 km N)
				4H1		Chicago/Schaumburg [Schaumburg Muni Helistop], Illinois, US (44 mi / 71 km SE)
				87WI		Cottage Grove [Quale Airport], Wisconsin, US (45 mi / 72 km NW)
KDKB				DKB		De Kalb [De Kalb Taylor Muni], Illinois, US (45 mi / 72 km S)
				59IL		Maple Park [Ruder Airport], Illinois, US (45 mi / 72 km S)
				76IS		Rolling Meadows [Steel Supply Heliport], Illinois, US (45 mi / 72 km SE)
				IS58		Pecatonica [Pecatonica Fire Protection District Heliport], Illinois, US (45 mi / 72 km SW)
				0WI2		Monches [Doering Farms Airfield], Wisconsin, US (45 mi / 72 km N)
				7IL4		Arlington Heights [Northwest Community Hospital Heliport], Illinois, US (45 mi / 73 km SE)
				2WI1		Stoughton [Uff-Da Airport], Wisconsin, US (45 mi / 73 km NW)
				4IL3		Stillman Valley (Byron) [Thrifty Acres Airport], Illinois, US (45 mi / 73 km SW)
				9IL5		Highland Park [City of Highland Park Heliport], Illinois, US (45 mi / 73 km SE)
				54W		Albany, Wisconsin, US (45 mi / 73 km W)
				3IL3		Stillman Valley [Stillman Fire Heliport], Illinois, US (45 mi / 73 km SW)
				59WI		Cottage Grove [Little Wheel Field], Wisconsin, US (45 mi / 73 km NW)
		ZML				Milwaukee [Railroad Station], Wisconsin, US (46 mi / 73 km NE)
				3WI2		Waterloo [Tesmer Airport], Wisconsin, US (46 mi / 74 km NW)