Cheap flights from Chicago to Bozeman from $138

The month of October is, on average, the cheapest month to fly to Bozeman from Chicago, with most prices found around $292. If you don’t want to visit Bozeman in October, then you should wait until January to fly from Chicago, when ticket prices are also cheap, with an average price of $308.

Our data shows that Tuesday is the least expensive day to fly to Bozeman. Tickets to fly out on this day can be as low as $356. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Chicago to Bozeman for around $392.

Our most recent data shows that the best time of day to fly to Bozeman is at noon. Flights from Chicago to Bozeman during this time can be as low as $353. In contrast, the most expensive time of day to depart to Bozeman is in the afternoon when prices are around $384.

Fly from Chicago O'Hare Intl to Bozeman Gallatin Field for the best Chicago - Bozeman Gallatin Field flight prices

You are more likely to see cheaper flights to Bozeman from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Bozeman for around $376 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bozeman from Chicago for as low as $330 on momondo.

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

You could potentially save up to 4% on your flight if you consider stops on a Chicago to Bozeman flight.

As of August 2026, prices for Chicago to Bozeman flights are approximately 41% cheaper when compared to flights at the same time last year.

United Airlines and Delta are the most popular carriers operating from Chicago to Bozeman Gallatin Field

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Bozeman from Chicago according to our data. American Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Bozeman. Keep in mind that there are 5 different airlines that fly to Bozeman on a routine basis, so you have a few additional options to choose from.

Denver (DEN) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

Flights via Denver (DEN) offer the lowest average round-trip price of $152.

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 5h 10m.

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

As of August 2026, there are 5 flights per day flying from Chicago to Bozeman. The most common time of day flights depart is 8:00PM, with 42% of flights taking off in the evening.

The number of flights available between Chicago and Bozeman is 38 per week as of August 2026. The most frequent departure day is Tue, with 26% of weekly flights leaving on this day.