How early should I arrive at Williamson County Regional Airport?

Williamson County Regional Airport (MWA) in Marion, Illinois, is a small general aviation and regional gateway serving Williamson County and surrounding communities. The field has a single terminal area with services geared toward private, charter and occasional regional airline operations rather than large scheduled networks; local fixed-base operators handle fueling, flight training and hangar services. Travelers can check the online flight board (online flight board) for arrivals (arrivals) and departures (departures) status updates, rental car options and ground transportation. Expect a low-traffic, easy-to-navigate facility with basic passenger amenities and convenient parking.