Alan B Janssen Airport

Alan B Janssen Airport is an airport located in Morrisonville Illinois, US. The ICAO code is 4LL9, used by air traffic control and pilots for flight planning.

The airport operates in the America/Chicago timezone. When planning flights to or from 4LL9, use our flight duration calculator to account for timezone differences, especially for international travel.

Alan B Janssen Airport sits at an elevation of 642 feet (196 meters) above sea level.

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