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FAA 4LL9 Small airport

Alan B. Janssen Airport

Morrisonville · Illinois · United States

Location

Town: Morrisonville
Region: Illinois
Country: United States
Elevation: 642 ft
Latitude: 39.3437
Longitude: -89.4237

Observed traffic

Departures (30 d): 1
Arrivals (30 d): 0
All observed flights: 1
Last seen: October 17, 2026

Facility

Type: Small airport
Scheduled service: No
Longest runway: 1,980 ft
Also known as: —

Runways

Runway	Length	Width	Surface	Lighted	Headings
E / W	1,980 ft	75 ft	TURF	No	—

Airport data from OurAirports (public domain).