Plain Crazy Airport

Plain Crazy Airport is an airport located in Carthage Illinois, US. The ICAO code is 4IS1, used by air traffic control and pilots for flight planning.

The airport operates in the America/Chicago timezone. When planning flights to or from 4IS1, use our flight duration calculator to account for timezone differences, especially for international travel.

Plain Crazy Airport sits at an elevation of 706 feet (215 meters) above sea level.

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