HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Montana

$105+ 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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BZN
Feb 26 — Mar 51
Wed 2/26
Wed 3/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago to Montana 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 Chicago to Montana

Keep the following information in mind while searching for Chicago to Montana flight deals. Data was last updated February 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$249
(Delta)

One-way from

$105
(Mytrip)

Popular in

December

Cheapest in

April

Average price

$435

Good round-trip deal

$381 or less

Good one-way deal

$254 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. 4% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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

Find 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 February 21, 2025.

This Delta deal was found by Cheapflights users on 2/19. 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 3/227:10 pmORD - BIL
1 stop5h 00mDelta
Wed 3/265:20 amBIL - ORD
1 stop6h 24mDelta
Deal found 2/19$249
This Mytrip deal was found by Cheapflights users on 2/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/137:47 amORD - BIL
1 stop26h 33mMultiple Airlines
Mon 3/1710:10 amBIL - ORD
1 stop26h 29mMultiple Airlines
Deal found 2/19$250
This Mytrip deal was found by Cheapflights users on 2/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/108:00 amORD - FCA
1 stop13h 58mMultiple Airlines
Sun 4/139:48 pmFCA - ORD
2 stops32h 52mMultiple Airlines
Deal found 2/20$254
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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 4/107:00 amORD - MSO
1 stop7h 39mAlaska Airlines
Mon 4/146:38 pmMSO - ORD
1 stop10h 21mAlaska Airlines
Deal found 2/19$269
This United Airlines deal was found by Cheapflights users on 2/20. 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 4/128:45 amORD - MSO
1 stop8h 17mUnited Airlines
Sat 4/192:33 pmMSO - ORD
1 stop5h 47mUnited Airlines
Deal found 2/20$285
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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 4/107:00 amORD - HLN
1 stop9h 39mAlaska Airlines
Mon 4/144:19 pmHLN - ORD
1 stop12h 40mAlaska Airlines
Deal found 2/19$302
This American Airlines deal was found by Cheapflights users on 2/19. 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 3/1310:40 amORD - BZN
Nonstop3h 27mAmerican Airlines
Wed 3/191:57 pmBZN - ORD
Nonstop2h 57mAmerican Airlines
Deal found 2/19$304
This Hawaiian Airlines deal was found by Cheapflights users on 2/19. 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.
Tue 4/85:53 pmORD - FCA
1 stop6h 50mHawaiian Airlines
Tue 4/222:15 pmFCA - ORD
1 stop8h 44mHawaiian Airlines
Deal found 2/19$304
This Delta deal was found by Cheapflights users on 2/20. 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 4/125:15 pmORD - FCA
1 stop7h 06mDelta
Sat 4/192:14 pmFCA - ORD
1 stop4h 56mDelta
Deal found 2/20$305
This Southwest deal was found by Cheapflights users on 2/19. 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 3/136:00 amORD - BZN
1 stop10h 05mSouthwest
Wed 3/195:35 amBZN - ORD
1 stop5h 15mSouthwest
Deal found 2/19$309
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 9/108:05 amORD - FCA
Nonstop3h 38mAmerican Airlines
Thu 9/1811:41 amFCA - ORD
Nonstop3h 24mAmerican Airlines
Deal found 2/19$309
This eDestinos deal was found by Cheapflights users on 2/20. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/68:00 amMDW - BZN
2 stops25h 49mMultiple Airlines
Sun 4/132:31 pmBZN - MDW
1 stop13h 49mMultiple Airlines
Deal found 2/20$309

Find flights from Chicago to Montana within your budget

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 February 21, 2025.

Fly from

Chicago

Fly to

Montana

Route

Depart

Return

Price

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Sat 3/22

7:10 pm-11:10 pm

1 stop5h 00m

Billings Logan Intl

Wed 3/26

5:20 am-12:44 pm

1 stop6h 24m

$249

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Thu 3/13

7:47 am-9:20 am

1 stop26h 33m

Billings Logan Intl

Mon 3/17

10:10 am-1:39 pm

1 stop26h 29m

$250

ChicagoKalispell

ORD - FCA

ORDFCA

Chicago O'Hare Intl

Thu 4/10

8:00 am-8:58 pm

1 stop13h 58m

Kalispell Glacier Park

Sun 4/13

9:48 pm-7:40 am

2 stops32h 52m

$254

ChicagoMissoula

ORD - MSO

ORDMSO

Chicago O'Hare Intl

Thu 4/10

7:00 am-1:39 pm

1 stop7h 39m

Missoula Johnson-Bell Field

Mon 4/14

6:38 pm-5:59 am

1 stop10h 21m

$269

ChicagoMissoula

ORD - MSO

ORDMSO

Chicago O'Hare Intl

Sat 4/12

8:45 am-4:02 pm

1 stop8h 17m

Missoula Johnson-Bell Field

Sat 4/19

2:33 pm-9:20 pm

1 stop5h 47m

$285

ChicagoHelena

ORD - HLN

ORDHLN

Chicago O'Hare Intl

Thu 4/10

7:00 am-3:39 pm

1 stop9h 39m

Helena

Mon 4/14

4:19 pm-5:59 am

1 stop12h 40m

$302

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Thu 3/13

10:40 am-1:07 pm

Nonstop3h 27m

Bozeman Gallatin Field

Wed 3/19

1:57 pm-5:54 pm

Nonstop2h 57m

$304

ChicagoKalispell

ORD - FCA

ORDFCA

Chicago O'Hare Intl

Tue 4/8

5:53 pm-11:43 pm

1 stop6h 50m

Kalispell Glacier Park

Tue 4/22

2:15 pm-11:59 pm

1 stop8h 44m

$304

ChicagoKalispell

ORD - FCA

ORDFCA

Chicago O'Hare Intl

Sat 4/12

5:15 pm-11:21 pm

1 stop7h 06m

Kalispell Glacier Park

Sat 4/19

2:14 pm-8:10 pm

1 stop4h 56m

$305

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Thu 3/13

6:00 am-3:05 pm

1 stop10h 05m

Bozeman Gallatin Field

Wed 3/19

5:35 am-11:50 am

1 stop5h 15m

$309

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 60 results
1
2
3
...
6

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.

Travel insights for flights from Chicago to Montana

Get recent, data-driven insights about flights from Chicago to Montana including ideal travel times, pricing trends, and more.

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 $371). Flying from Chicago to Montana in June is currently the most expensive (average of $520). 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 February 21, 2025.

When flying from Chicago to Montana, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Montana by month

Plan your trip to Montana by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Montana ranges from 0.4 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. January is typically the driest time to visit Montana when rainfall is around 0.4 in.

Temperature in Montana by month

Plan your trip to Montana by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Montana, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

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 February 21, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Chicago to Montana have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.1

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.1

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.1

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.1

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Hawaiian Airlines
7.9
Good
2,316 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.1

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.1

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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.

  • What are the cheapest airlines to fly from Chicago to Montana one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $135. Users have also found prices from $135 and $145 on Alaska Airlines and American Airlines, respectively.

  • 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 O'Hare Intl - Kalispell Glacier Park or Chicago Midway - Bozeman Gallatin Field 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: Envoy Air (71%), American Airlines (68%), Alaska Airlines( 68%).

  • What are the cheapest flights from Chicago to Montana?

    Looking for the cheapest flight from Chicago to Montana? While on average our users pay $740, our data indicates the cheapest price to be $144. The most popular route (Chicago O'Hare Intl - Bozeman Gallatin Field), is priced around $254.

  • 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 $371). Flying from Chicago to Montana in June is currently the most expensive (average of $520). 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

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 Chicago to Montana

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Fort Lauderdale flights
O'Hare Intl to Las Vegas flights
O'Hare Intl to John F Kennedy Intl flights
O'Hare Intl to Miami flights
O'Hare Intl to Sky Harbor Intl flights
O'Hare Intl to Los Angeles flights
O'Hare Intl to Seattle flights
O'Hare Intl to Orlando flights
O'Hare Intl to Dallas/Fort Worth flights
Midway to Las Vegas flights
O'Hare Intl to Denver flights
O'Hare Intl to San Francisco flights
O'Hare Intl to LaGuardia flights
O'Hare Intl to Newark flights
O'Hare Intl to Boston flights
O'Hare Intl to San Diego flights
O'Hare Intl to New Orleans flights
O'Hare Intl to Tampa flights
O'Hare Intl to Austin flights
O'Hare Intl to Dulles Intl flights
O'Hare Intl to Fort Myers flights
O'Hare Intl to West Palm Beach flights
O'Hare Intl to Nashville flights
O'Hare Intl to Honolulu flights
Midway to Newark flights
O'Hare Intl to Atlanta flights
O'Hare Intl to Reagan-National flights
O'Hare Intl to Salt Lake City flights
O'Hare Intl to Santa Ana flights
O'Hare Intl to Baltimore flights
Midway to LaGuardia flights
Midway to John F Kennedy Intl flights
Midway to Sky Harbor Intl flights
Midway to Fort Lauderdale flights
Midway to Miami flights
O'Hare Intl to Philadelphia flights
O'Hare Intl to Hobby flights
St. Louis to Seattle flights
Midway to Orlando flights
O'Hare Intl to George Bush Intcntl flights
Midway to Atlanta flights
O'Hare Intl to Sarasota flights
Midway to San Francisco flights
O'Hare Intl to Portland flights
O'Hare Intl to Burbank flights
O'Hare Intl to Ontario flights
Midway to Seattle flights
Midway to Hobby flights
O'Hare Intl to Charleston flights
O'Hare Intl to Love Field flights

Top 6 airlines flying from Chicago to Montana

Discover the top 6 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 February 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$175Average$245FlexibilityNo cancel feeOn-time83%
DeltaCheapest$182Average$471FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$239Average$478FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$248Average$534FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$267Average$511FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$296Average$475FlexibilityNo cancel feeOn-time63%
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.