HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bozeman

$96+ Cheap flights from Illinois to Bozeman (BZN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BZN
Aug 22 — Aug 291
Fri 8/22
Fri 8/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Bozeman with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Bozeman

Keep the following information in mind while searching for Illinois to Bozeman flight deals. Data was last updated August 17, 2025.

Round-trip from

$211
(United Airlines)

One-way from

$96
(United Airlines)

Popular in

December

Cheapest in

August

Average price

$343

Good round-trip deal

$263 or less

Good one-way deal

$168 or less
From Illinois to Bozeman Gallatin Field
Search Deals
One-way flight from Illinois to Bozeman Gallatin Field
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($49 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Bozeman Gallatin Field.
Search Deals
Price to beat on a one-way flight from Illinois to Bozeman Gallatin Field.
Search Deals

Find flight deals from Illinois to Bozeman

Cheapest flights from Illinois to Bozeman
Explore the most affordable flight options available from Illinois to Bozeman. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2025.

This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/134:10 pmORD - BZN
1 stop6h 21mUnited Airlines
Thu 9/188:00 amBZN - ORD
Nonstop3h 05mUnited Airlines
Deal found 8/16$211
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:20 amORD - BZN
1 stop8h 54mHawaiian Airlines
Sat 9/201:54 pmBZN - ORD
1 stop9h 10mHawaiian Airlines
Deal found 8/17$214
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/14:40 pmORD - BZN
Nonstop3h 18mUnited Airlines
Sun 10/58:00 amBZN - ORD
Nonstop3h 05mUnited Airlines
Deal found 8/16$215
This Southwest deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/138:20 amMDW - BZN
Nonstop3h 10mSouthwest
Thu 9/1811:20 amBZN - MDW
Nonstop2h 55mSouthwest
Deal found 8/16$215
This Hawaiian Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:00 amORD - BZN
1 stop7h 02mHawaiian Airlines
Tue 11/411:16 amBZN - ORD
1 stop9h 24mHawaiian Airlines
Deal found 8/16$219
This American Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/318:14 amORD - BZN
Nonstop3h 33mAmerican Airlines
Tue 11/41:52 pmBZN - ORD
1 stop8h 45mAmerican Airlines
Deal found 8/16$220
This United Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/145:00 amORD - BZN
1 stop5h 52mUnited Airlines
Sat 9/204:20 pmBZN - ORD
1 stop6h 39mUnited Airlines
Deal found 8/16$221
This Alaska Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/96:20 amORD - BZN
1 stop8h 54mAlaska Airlines
Sat 9/133:08 pmBZN - ORD
1 stop7h 55mAlaska Airlines
Deal found 8/17$224
This Alaska Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:20 amORD - BZN
1 stop8h 54mAlaska Airlines
Sat 9/203:08 pmBZN - ORD
1 stop7h 55mAlaska Airlines
Deal found 8/16$228
This American Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1110:36 amORD - BZN
Nonstop3h 32mAmerican Airlines
Sat 10/184:54 pmBZN - ORD
Nonstop3h 10mAmerican Airlines
Deal found 8/16$229
This American Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1611:54 amORD - BZN
Nonstop3h 18mAmerican Airlines
Tue 9/233:06 pmBZN - ORD
Nonstop3h 17mAmerican Airlines
Deal found 8/17$230
This Southwest deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3110:55 amMDW - BZN
Nonstop3h 10mSouthwest
Sat 9/611:10 amBZN - MDW
1 stop6h 50mSouthwest
Deal found 8/16$231

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Bozeman that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 17, 2025.
Use the filters below to find and compare flights from Illinois to Bozeman that are best for you.

Fly from

Illinois

Fly to

Bozeman

Route

Depart

Return

Price

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Sun 9/14

9:20 am-11:44 am

Nonstop3h 24m

Bozeman Gallatin Field

Sat 9/20

4:20 pm-11:59 pm

1 stop6h 39m

$211

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Sat 9/13

4:10 pm-9:31 pm

1 stop6h 21m

Bozeman Gallatin Field

Thu 9/18

8:00 am-12:05 pm

Nonstop3h 05m

$211

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Sat 9/13

6:20 am-2:14 pm

1 stop8h 54m

Bozeman Gallatin Field

Sat 9/20

1:54 pm-12:04 am

1 stop9h 10m

$214

ChicagoBozeman

MDW - BZN

MDWBZN

Chicago Midway

Sat 9/13

8:20 am-10:30 am

Nonstop3h 10m

Bozeman Gallatin Field

Thu 9/18

11:20 am-3:15 pm

Nonstop2h 55m

$215

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Fri 10/31

7:00 am-1:02 pm

1 stop7h 02m

Bozeman Gallatin Field

Tue 11/4

11:16 am-9:40 pm

1 stop9h 24m

$219

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Fri 10/31

8:14 am-10:47 am

Nonstop3h 33m

Bozeman Gallatin Field

Fri 11/7

1:52 pm-10:20 pm

1 stop7h 28m

$220

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Mon 9/22

7:00 am-1:14 pm

1 stop7h 14m

Bozeman Gallatin Field

Mon 9/29

3:08 pm-12:03 am

1 stop7h 55m

$220

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Wed 9/24

6:20 am-2:14 pm

1 stop8h 54m

Bozeman Gallatin Field

Tue 9/30

3:08 pm-12:03 am

1 stop7h 55m

$220

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Wed 10/1

6:20 am-2:14 pm

1 stop8h 54m

Bozeman Gallatin Field

Tue 10/7

3:04 pm-11:59 pm

1 stop7h 55m

$224

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Tue 9/23

8:00 am-2:14 pm

1 stop7h 14m

Bozeman Gallatin Field

Sat 9/27

1:54 pm-12:04 am

1 stop9h 10m

$224

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 53 results
1
2
3
...
6

Best time to book a flight from Illinois to Bozeman

Have a flexible travel schedule? Discover the best time to fly to Bozeman from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Bozeman

What is the cheapest month to book a flight from Illinois to Bozeman?

Currently, October is the cheapest month in which you can book a flight from Illinois to Bozeman (average of $371). Flying from Illinois to Bozeman in May is currently the most expensive (average of $478). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to BZN?

Find hourly flight availability from Illinois to Bozeman. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Bozeman as you normally would.

Weekly flight availability from Illinois to Bozeman

Explore weekly flight availability from Illinois to Bozeman. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 17, 2025.

The most flights from USIL to BZN are scheduled on a Sunday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).

Related info for your journey

Find useful and relevant information for your journey from Illinois to Bozeman. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Bozeman from Illinois?

    Bozeman Gallatin Field (BZN), located 8.7 mi from the city center, is the airport you fly into when you book flights from Illinois to Bozeman.

  • What are the cheapest airlines to fly from Illinois to Bozeman one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $96. Southwest flights start at $101 while deals on Alaska Airlines start at $105 one-way.

  • What are the most popular routes from Illinois to Bozeman?

    When deciding which route to take from Illinois to Bozeman consider Chicago O'Hare Intl - Bozeman Gallatin Field, Chicago Midway - Bozeman Gallatin Field or Lambert-St Louis - Bozeman Gallatin Field as they are the most popular.

  • What are the most reliable airlines from Illinois to Bozeman?

    The top 3 most reliable airlines when flying from Illinois to Bozeman are SkyWest Airlines (83%), American Airlines (68%) and United Airlines (66%).

  • What are the cheapest flights from Illinois to Bozeman?

    The cheapest flight price from Illinois to Bozeman is $95. On average you can expect to pay $266. The most popular route, (Chicago O'Hare Intl - Bozeman Gallatin Field), can usually be booked for $191.

  • Can I find deals for flights from Illinois to Bozeman that include hotel bookings?

    Yes. In addition to deals on Illinois to Bozeman flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Bozeman?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Bozeman.

  • Can I find deals for business class flights from Illinois to Bozeman?

    Yes. Cheapflights offers flight deals from Illinois to Bozeman by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Bozeman?

    Currently, October is the cheapest month in which you can book a flight from Illinois to Bozeman (average of $371). Flying from Illinois to Bozeman in May is currently the most expensive (average of $478). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Bozeman?

Book flights to Bozeman if you plan to visit one of these locations
Livingston

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Bozeman

See prices for flight routes from nearby airports that may be better suited for you.
Hobby to Bozeman flights
Newark to Bozeman flights
Denver to Kalispell flights
George Bush Intcntl to Bozeman flights
Los Angeles to Kalispell flights
John F Kennedy Intl to Bozeman flights
O'Hare Intl to Bozeman flights
Boston to Bozeman flights
Dulles Intl to Bozeman flights
Los Angeles to Bozeman flights
Seattle to Bozeman flights
San Francisco to Kalispell flights
Hobby to Kalispell flights
Dallas/Fort Worth to Kalispell flights
San Francisco to Bozeman flights
LaGuardia to Bozeman flights
Minneapolis to Bozeman flights
Baltimore to Bozeman flights
Reagan-National to Bozeman flights
Seattle to Kalispell flights
Atlanta to Bozeman flights
Denver to Bozeman flights
Dallas/Fort Worth to Bozeman flights
O'Hare Intl to Kalispell flights
Minneapolis to Kalispell flights
Newark to Kalispell flights
John F Kennedy Intl to Kalispell flights
Seattle to Billings flights
Philadelphia to Bozeman flights
Philadelphia to Kalispell flights
Ontario to Kalispell flights
George Bush Intcntl to Kalispell flights
Reagan-National to Kalispell flights
LaGuardia to Kalispell flights
Dulles Intl to Kalispell flights
Los Angeles to Helena flights
Harrisburg to Missoula flights
Seattle to Missoula flights
St. Louis to Kalispell flights
Orlando to Bozeman flights
Baltimore to Kalispell flights
Ontario to Bozeman flights
Midway to Bozeman flights
Orlando to Kalispell flights
Denver to Missoula flights
Raleigh to Bozeman flights
Santa Ana to Kalispell flights
Los Angeles to Great Falls flights
Santa Ana to Great Falls flights
Ontario to Helena flights

Top 5 airlines flying from Illinois to Bozeman

Discover the top 5 airlines that operate flights from Illinois to Bozeman. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$210Average$454FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$211Average$375FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$336FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$270Average$472FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$291Average$504FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.