To save on the cost of your flight from Illinois to Michigan, book at least 31 days before your planned departure. Booking around this time can save you about 27% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $251 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $293.
September is one of the best times of the year to fly to Michigan from Illinois. Prices for September average $252 per person but you can even find prices for as low as $146. The most expensive prices can be found in the month of March. Opting for a September flight can save you 33% on your journey compared to booking in September