HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Montana

$115+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BZN
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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

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 January 29, 2026.

This Delta deal was found by Cheapflights users on 1/28. 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.
Wed 4/17:20 am
ORD
-
GTF
1 stop6h 04m
Delta
Wed 4/81:05 pm
GTF
-
ORD
1 stop7h 29m
Delta
Deal found 1/28$244
This American Airlines deal was found by Cheapflights users on 1/28. 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 5/289:45 am
ORD
-
FCA
Nonstop3h 45m
American Airlines
Tue 6/24:48 pm
FCA
-
ORD
Nonstop3h 42m
American Airlines
Deal found 1/28$249
This Delta deal was found by Cheapflights users on 1/28. 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.
Sun 8/303:50 pm
ORD
-
BIL
1 stop7h 47m
Delta
Sat 9/55:45 am
BIL
-
ORD
1 stop5h 36m
Delta
Deal found 1/28$249
This United Airlines deal was found by Cheapflights users on 1/26. 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 8/228:55 am
ORD
-
MSO
Nonstop3h 39m
United Airlines
Tue 8/2512:40 pm
MSO
-
ORD
Nonstop3h 20m
United Airlines
Deal found 1/26$249
This American Airlines deal was found by Cheapflights users on 1/27. 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 2/215:00 am
ORD
-
BZN
1 stop6h 43m
American Airlines
Fri 2/273:36 pm
BZN
-
ORD
1 stop7h 00m
American Airlines
Deal found 1/27$250
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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 4/146:00 am
ORD
-
FCA
1 stop7h 12m
Alaska Airlines
Wed 4/158:26 pm
FCA
-
ORD
1 stop9h 13m
Alaska Airlines
Deal found 1/28$253
This Delta deal was found by Cheapflights users on 1/28. 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.
Wed 7/87:15 am
ORD
-
WYS
1 stop6h 06m
Delta
Fri 7/171:09 pm
WYS
-
ORD
1 stop7h 49m
Delta
Deal found 1/28$253
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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 3/35:29 pm
ORD
-
MSO
1 stop7h 30m
Alaska Airlines
Wed 3/46:23 am
MSO
-
ORD
1 stop9h 10m
Alaska Airlines
Deal found 1/28$253
This Delta deal was found by Cheapflights users on 1/28. 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.
Sun 8/237:15 am
ORD
-
BZN
1 stop8h 31m
Delta
Sat 8/295:45 am
BZN
-
ORD
2 stops8h 13m
Delta
Deal found 1/28$254
This Delta deal was found by Cheapflights users on 1/27. 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 5/22:12 pm
MDW
-
BZN
2 stops8h 50m
Delta
Tue 5/52:53 pm
BZN
-
MDW
1 stop6h 35m
Delta
Deal found 1/27$254
This American Airlines deal was found by Cheapflights users on 1/26. 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 9/88:46 pm
ORD
-
BIL
Nonstop3h 13m
American Airlines
Sat 9/197:16 am
BIL
-
ORD
Nonstop2h 54m
American Airlines
Deal found 1/26$256
This United Airlines deal was found by Cheapflights users on 1/29. 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.
Fri 5/12:20 pm
ORD
-
GTF
1 stop7h 58m
United Airlines
Sat 5/92:35 pm
GTF
-
ORD
1 stop5h 48m
United Airlines
Deal found 1/29$258

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$244
(Delta)

One-way from

$115
(Alaska Airlines)

Popular in

March

Cheapest in

September

Average price

$327

Good round-trip deal

$271 or less

Good one-way deal

$175 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. 13% potential increase in price ($54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 29, 2026.
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

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Wed 4/1

7:20 am-12:24 pm

1 stop6h 04m

Great Falls

Wed 4/8

1:05 pm-9:34 pm

1 stop7h 29m

$244

ChicagoKalispell

ORD - FCA

ORDFCA

Chicago O'Hare Intl

Tue 4/14

6:00 am-12:12 pm

1 stop7h 12m

Kalispell Glacier Park

Wed 4/15

8:26 pm-6:39 am

1 stop9h 13m

$253

ChicagoMissoula

ORD - MSO

ORDMSO

Chicago O'Hare Intl

Wed 3/4

5:29 pm-11:59 pm

1 stop7h 30m

Missoula Johnson-Bell Field

Fri 3/6

4:20 pm-11:56 pm

1 stop6h 36m

$253

ChicagoMissoula

ORD - MSO

ORDMSO

Chicago O'Hare Intl

Tue 3/3

5:29 pm-11:59 pm

1 stop7h 30m

Missoula Johnson-Bell Field

Wed 3/4

1:39 pm-11:56 pm

1 stop9h 17m

$253

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Wed 2/18

2:20 pm-10:25 pm

1 stop9h 05m

Bozeman Gallatin Field

Wed 2/25

6:00 am-4:41 pm

2 stops9h 41m

$254

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Tue 2/24

2:05 pm-11:15 pm

2 stops10h 10m

Bozeman Gallatin Field

Sat 2/28

6:00 am-11:45 am

1 stop4h 45m

$254

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

Sun 2/22

5:25 am-11:24 am

1 stop6h 59m

Bozeman Gallatin Field

Fri 2/27

6:00 am-4:41 pm

2 stops9h 41m

$254

ChicagoBozeman

MDW - BZN

MDWBZN

Chicago Midway

Wed 2/18

1:49 pm-11:15 pm

2 stops10h 26m

Bozeman Gallatin Field

Wed 2/25

6:00 am-1:05 pm

1 stop6h 05m

$254

ChicagoGreat Falls

ORD - GTF

ORDGTF

Chicago O'Hare Intl

Fri 5/1

2:20 pm-9:18 pm

1 stop7h 58m

Great Falls

Sat 5/9

2:35 pm-9:23 pm

1 stop5h 48m

$258

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

Thu 5/28

7:52 pm-10:13 pm

Nonstop3h 21m

Billings Logan Intl

Sun 5/31

8:45 am-12:45 pm

Nonstop3h 00m

$263

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

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.

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 $289). 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 January 29, 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 20% on flights from Chicago to Montana by exploring options for tickets in the afternoon.

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 January 24, 2026.

Travelers seeking maximum savings on their Chicago to Montana flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday afternoons 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 January 29, 2026.
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
11,807 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,807 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,267 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,128 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,215 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,205 reviews
Alaska Airlines
8.0
Very good
11,807 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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 6h 04m. Fly via Delta, Alaska Airlines, or United Airlines to get the fastest option. Chicago and Montana are separated by a distance of 1207 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: SkyWest Airlines (100%), Qatar Airways (100%), American Airlines( 83%).

  • What are the cheapest flights from Chicago to Montana?

    Looking for the cheapest flight from Chicago to Montana? While on average our users pay $259, our data indicates the cheapest price to be $135. The most popular route (Chicago O'Hare Intl - Bozeman Gallatin Field), is priced around $229.

  • 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 $289). 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 Sky Harbor Intl flights
O'Hare Intl to Las Vegas flights
O'Hare Intl to Dallas/Fort Worth flights
O'Hare Intl to Fort Lauderdale flights
O'Hare Intl to Los Angeles flights
O'Hare Intl to Miami flights
O'Hare Intl to John F Kennedy Intl flights
O'Hare Intl to Orlando flights
O'Hare Intl to Denver flights
O'Hare Intl to San Francisco flights
O'Hare Intl to Tampa flights
O'Hare Intl to LaGuardia flights
Midway to Dallas/Fort Worth flights
O'Hare Intl to Fort Myers flights
O'Hare Intl to Newark flights
Midway to Fort Lauderdale flights
Midway to Sky Harbor Intl flights
Midway to Las Vegas flights
Midway to Miami flights
O'Hare Intl to Seattle flights
O'Hare Intl to Santa Ana flights
O'Hare Intl to Atlanta flights
O'Hare Intl to West Palm Beach flights
O'Hare Intl to Sarasota flights
Midway to Orlando flights
O'Hare Intl to San Diego flights
O'Hare Intl to Reagan-National flights
O'Hare Intl to Austin flights
O'Hare Intl to New Orleans flights
O'Hare Intl to Hobby flights
Midway to Los Angeles flights
O'Hare Intl to Salt Lake City flights
O'Hare Intl to Nashville flights
O'Hare Intl to Baltimore flights
O'Hare Intl to Ontario flights
O'Hare Intl to Dulles Intl flights
O'Hare Intl to Boston flights
O'Hare Intl to George Bush Intcntl flights
St. Louis to Las Vegas flights
O'Hare Intl to Honolulu flights
Midway to John F Kennedy Intl flights
Midway to Tampa flights
St. Louis to Orlando flights
Midway to Hobby flights
O'Hare Intl to Philadelphia flights
O'Hare Intl to Love Field flights
O'Hare Intl to Key West flights
O'Hare Intl to Palm Springs flights
Midway to Newark flights
Midway to Fort Myers flights

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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$152Average$405FlexibilityNo cancel feeOn-time63%
DeltaCheapest$169Average$408FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$211Average$384FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$245Average$483FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$268Average$522FlexibilityNo 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.