Airports 401 to 450
![Small airport small airport marker](/images/maps/small-airport-marker.png)
Illinois Valley Regional Airport Walter A Duncan Field
![Heliport heliport marker](/images/maps/heliport-marker.png)
Illinois Valley Community Hospital Heliport
![Small airport small airport marker](/images/maps/small-airport-marker.png)
Pittsfield Penstone Municipal Airport
![Small airport small airport marker](/images/maps/small-airport-marker.png)
Platteville Municipal Airport
![Small airport small airport marker](/images/maps/small-airport-marker.png)
Captain Ben Smith Airfield - Monroe City Airport
![Small airport small airport marker](/images/maps/small-airport-marker.png)
Illinois Valley Parachute Club Airport
![Small airport small airport marker](/images/maps/small-airport-marker.png)
Jacksonville Municipal Airport
![Small airport small airport marker](/images/maps/small-airport-marker.png)
Albertus Airport
![Regional airport medium airport marker](/images/maps/medium-airport-marker.png)