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$104+ Cheap flights from Chicago (CHI) to Montana

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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BZN
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheap flight deals from Chicago to Montana

Cheapest flights from Chicago to Montana
Explore the most affordable flight options available from Chicago to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.

This American Airlines deal was found by Cheapflights users on 12/14. 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 12/238:25 amORD - BZN
Nonstop3h 44mAmerican Airlines
Sun 12/2811:39 amBZN - ORD
Nonstop3h 10mAmerican Airlines
Deal found 12/14$329
This United Airlines deal was found by Cheapflights users on 12/14. 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 12/217:58 pmORD - BZN
Nonstop3h 31mUnited Airlines
Thu 1/17:15 amBZN - ORD
Nonstop3h 19mUnited Airlines
Deal found 12/14$346
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Tue 12/237:58 pmORD - BZN
Nonstop3h 31mUnited Airlines
Sat 12/274:14 pmBZN - ORD
Nonstop3h 11mUnited Airlines
Deal found 12/15$379
This Southwest deal was found by Cheapflights users on 12/14. 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.
Thu 12/255:15 amMDW - BZN
1 stop7h 40mSouthwest
Mon 12/295:30 pmBZN - MDW
1 stop5h 10mSouthwest
Deal found 12/14$379
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 12/258:25 amORD - BZN
Nonstop3h 44mAmerican Airlines
Wed 12/311:34 pmBZN - ORD
Nonstop3h 20mAmerican Airlines
Deal found 12/16$384
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Tue 12/3012:45 pmORD - BZN
Nonstop3h 25mUnited Airlines
Wed 12/3112:42 pmBZN - ORD
Nonstop3h 09mUnited Airlines
Deal found 12/14$391
This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/202:15 pmORD - BZN
1 stop9h 16mDelta
Tue 12/233:20 pmBZN - ORD
1 stop7h 42mDelta
Deal found 12/14$399
This United Airlines deal was found by Cheapflights users on 12/14. 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 12/241:55 pmORD - BIL
1 stop8h 29mUnited Airlines
Fri 12/265:50 pmBIL - ORD
1 stop5h 09mUnited Airlines
Deal found 12/14$399
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Thu 12/2512:45 pmORD - BZN
Nonstop3h 25mUnited Airlines
Wed 12/314:14 pmBZN - ORD
Nonstop3h 11mUnited Airlines
Deal found 12/15$409
This Alaska Airlines deal was found by Cheapflights users on 12/13. 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.
Thu 12/186:00 amORD - BZN
1 stop9h 03mAlaska Airlines
Sun 1/46:09 amBZN - ORD
1 stop23h 20mAlaska Airlines
Deal found 12/13$416
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/313:42 pmORD - GTF
1 stop8h 04mUnited Airlines
Mon 1/52:35 pmGTF - ORD
1 stop8h 24mUnited Airlines
Deal found 12/15$433
This Southwest deal was found by Cheapflights users on 12/16. 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.
Wed 12/171:10 pmMDW - BZN
2 stops10h 35mSouthwest
Wed 12/2412:40 pmBZN - MDW
1 stop6h 25mSouthwest
Deal found 12/16$459

Find flight deals from Chicago to Montana

Keep the following information in mind while searching for Chicago to Montana flight deals. Data was last updated December 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$189
(Southwest)

One-way from

$104
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$449

Good round-trip deal

$285 or less

Good one-way deal

$135 or less
Provider with most accurate pricing for Chicago (CHI)-Bozeman Gallatin Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Bozeman Gallatin Field flights.
Search Deals
From Chicago (CHI) to Montana
Search Deals
One-way flight from Chicago (CHI) to Montana
Search Deals
Highest demand for flights based on searches. 11% 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 December 2025
Search Deals
Price to beat on a round-trip flight from Chicago (CHI) to Montana.
Search Deals
Price to beat on a one-way flight from Chicago (CHI) to Montana.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Montana 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 December 16, 2025.
Use the filters below to find and compare flights from Chicago to Montana that are best for you.

Fly from

Chicago

Fly to

Montana

Route

Depart

Return

Price

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Tue 3/3

5:29 pm-11:56 pm

1 stop7h 27m

Bozeman Gallatin Field

Sat 3/7

7:00 am-4:33 pm

1 stop8h 33m

$228

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Fri 4/10

9:10 am-11:33 am

Nonstop3h 23m

Bozeman Gallatin Field

Mon 4/13

12:30 pm-4:30 pm

Nonstop3h 00m

$229

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Sun 3/29

1:18 pm-5:58 pm

1 stop5h 40m

Bozeman Gallatin Field

Wed 4/1

3:19 pm-11:54 pm

1 stop7h 35m

$233

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Thu 1/29

3:35 pm-11:56 pm

1 stop9h 21m

Bozeman Gallatin Field

Mon 2/2

7:20 am-5:10 pm

1 stop8h 50m

$239

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Thu 3/5

3:54 pm-11:56 pm

1 stop9h 02m

Bozeman Gallatin Field

Tue 3/10

7:00 am-4:33 pm

1 stop8h 33m

$239

ChicagoBozeman

MDW - BZN

MDWBZN

Chicago Midway

Sat 2/21

6:10 am-2:05 pm

1 stop8h 55m

Bozeman Gallatin Field

Tue 2/24

7:40 am-4:45 pm

1 stop8h 05m

$249

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Tue 5/12

7:59 pm-11:53 pm

1 stop4h 54m

Bozeman Gallatin Field

Sat 5/16

3:40 pm-11:47 pm

1 stop7h 07m

$249

ChicagoBozeman

MDW - BZN

MDWBZN

Chicago Midway

Fri 2/20

5:00 am-11:40 am

1 stop7h 40m

Bozeman Gallatin Field

Tue 2/24

7:40 am-4:45 pm

1 stop8h 05m

$249

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Fri 2/6

1:55 pm-9:23 pm

1 stop8h 28m

Billings Logan Intl

Tue 2/10

2:45 pm-9:15 pm

1 stop5h 30m

$249

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Wed 2/11

2:20 pm-10:27 pm

1 stop9h 07m

Bozeman Gallatin Field

Tue 2/17

3:05 pm-11:52 pm

1 stop7h 47m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 60 results
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Best time to book a flight from Chicago to Montana

Have a flexible travel schedule? Discover the best time to fly to Montana from Chicago 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 Chicago to Montana

What is the cheapest month to book a flight from Chicago to Montana?

Currently, October is the cheapest month in which you can book a flight from Chicago to Montana (average of $190). Flying from Chicago to Montana in March is currently the most expensive (average of $290). 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 CHI to MT?

Find hourly flight availability from Chicago to Montana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 16, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 21% on flights from Chicago to Montana by exploring options for tickets at noon.

What is the cheapest day to fly from Chicago to Montana?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Montana. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Chicago to Montana flight should consider departing on Monday afternoons when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Chicago to Montana?

Reviews of airlines servicing Montana

Get insights into the airlines that provide service to Montana. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Montana. Reviews last updated December 16, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Chicago to Montana by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,469 reviews

Comfort

7.8

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,469 reviews
Alaska Airlines
8.0
Very good
11,469 reviews

Comfort

7.8

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Southwest
7.9
Good
4,250 reviews
Alaska Airlines
8.0
Very good
11,469 reviews

Comfort

7.8

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Delta
7.9
Good
8,008 reviews
Alaska Airlines
8.0
Very good
11,469 reviews

Comfort

7.8

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
United Airlines
7.4
Good
9,092 reviews
Alaska Airlines
8.0
Very good
11,469 reviews

Comfort

7.8

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
American Airlines
7.2
Good
11,049 reviews
Alaska Airlines
8.0
Very good
11,469 reviews

Comfort

7.8

Overall

8.0

Entertainment

7.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Related info for your journey

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

  • How long is the flight from Chicago to Montana?

    There are many flights that can get you from Chicago to Montana in 3h 23m. Fly via Alaska Airlines, United Airlines, or Delta to get the fastest option. Chicago and Montana are separated by a distance of 1182 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Chicago to Montana?

    When deciding which route to take from Chicago to Montana consider Chicago O'Hare Intl - Bozeman Gallatin Field, Chicago Midway - Bozeman Gallatin Field or Chicago O'Hare Intl - Kalispell Glacier Park as they are the most popular.

  • What are the most reliable airlines from Chicago to Montana?

    Before booking your flight to Montana from Chicago, check out the most reliable airlines to get you to your destination on time: United Airlines (77%), Lufthansa (70%), Alaska Airlines( 55%).

  • What are the cheapest flights from Chicago to Montana?

    Looking for the cheapest flight from Chicago to Montana? While on average our users pay $270, our data indicates the cheapest price to be $135. The most popular route (Chicago O'Hare Intl - Bozeman Gallatin Field), is priced around $207.

  • Can I find deals for flights from Chicago to Montana that include hotel bookings?

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

  • How can I find direct flights from Chicago to Montana?

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

  • Can I find deals for business class flights from Chicago to Montana?

    Yes. Cheapflights offers flight deals from Chicago to Montana 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 Chicago to Montana?

    Currently, October is the cheapest month in which you can book a flight from Chicago to Montana (average of $190). Flying from Chicago to Montana in March is currently the most expensive (average of $290). 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

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Alternative routes for Chicago to Montana

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Chicago to Montana

Discover the top 5 airlines that operate flights from Chicago to Montana. 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 December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$152Average$448FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$211Average$381FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$312FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$497FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$270Average$504FlexibilityNo cancel feeOn-time75%

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