Cheap flights from Kalispell to Chicago from $121

The month of October is, on average, the cheapest month to fly to Chicago from Kalispell, with most prices found around $349. If you’re not able to fly to Chicago in October, then September is your next best option. Flight prices from Kalispell to Chicago during September average around $415.

The cheapest day to depart on your flight to Chicago is on a Saturday when prices can be found for as low as $514. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Kalispell to Chicago for around $973.

Our most recent data shows that the best time of day to fly to Chicago is at noon. Flights from Kalispell to Chicago during this time can be as low as $509. In contrast, the most expensive time of day to depart to Chicago is in the afternoon when prices are around $642.

Fly from Kalispell Glacier Park to Chicago O'Hare Intl for the best Kalispell Glacier Park - Chicago flight prices

There are 4 cabin classes available to choose from on Kalispell to Chicago flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Kalispell to Chicago.

Alaska Airlines and Delta are the most popular carriers operating from Kalispell Glacier Park to Chicago

United Airlines, American Airlines and Alaska Airlines are the top three most popular airlines that fly to Chicago from Kalispell according to our data. United Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Chicago. Keep in mind that there are 4 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

Minneapolis (MSP) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Denver (DEN) offer the lowest average round-trip price of $306.

Flights connecting via Minneapolis (MSP) have the shortest average one-way travel time: 5h 52m.

Denver (DEN) has the shortest average layover time for this route: 0h 50m.

The number of flights available between Kalispell and Chicago is 5 per day as of August 2026. The most frequent departure time is 1:00PM, with 83% of daily flights leaving in the afternoon.

As of August 2026, there are 41 flights per week flying from Kalispell to Chicago. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.