Cheap flights from Marion, Illinois from $520

Our data suggests that currently, the cheapest flights from Marion, Illinois are being offered by Contour. For example, Contour flights from Marion, Illinois to Chicago O'Hare Intl Airport start at $108.

Currently, the cheapest flight from Marion, Illinois found by our users is for $182 to Chicago O'Hare Intl Airport. Prices will vary according to several factors such as the departure date and time, but on average you can expect to pay around $385 to travel from Marion, Illinois to Chicago O'Hare Intl Airport.

Chicago and Chicago O'Hare Intl Airport are currently the destinations served most frequently from Marion, Illinois, with 1 and 1 flights per day on average, respectively.

Airlines including Contour frequently fly from Marion, Illinois. You can view other airlines by performing a quick search in the form above.

Prices for flights from Marion Williamson County Airport are updated daily.

As of September 2026, there is 1 operator available to choose from for flights from Marion Williamson County Airport.

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Marion Williamson County Airport.

The travel and health documents required for your trip to Marion Williamson County Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Marion Williamson County Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.