Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kalispell to Chicago Midway Airport as you normally would.
Users have found that booking a flight from Kalispell to Chicago Midway Airport at least 38 days early can save you up to 66% on average compared to booking a flight this week. If booking 38 days before your flight isn’t an option for you, users have found flights from Kalispell to Chicago Midway Airport for as little as $557 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $715 for flights departing within the next 3 days.