HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Montana

$96+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BZN
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
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 julio 31, 2025.

Round-trip from

$210
(Hawaiian Airlines)

One-way from

$96
(United Airlines)

Popular in

December

Cheapest in

April

Average price

$369

Good round-trip deal

$225 or less

Good one-way deal

$174 or less
From Chicago (CHI) to Montana
Search Deals
One-way flight from Chicago (CHI) to Montana
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($47 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 July 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 julio 31, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 7/30. 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.
sáb. 9/68:00 amORD - BZN
1 stop7h 14mHawaiian Airlines
vie. 9/1211:26 amBZN - ORD
1 stop9h 41mHawaiian Airlines
Deal found 7/30$210
This American Airlines deal was found by Cheapflights users on 7/30. 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.
mié. 8/278:46 pmORD - BIL
Nonstop3h 14mAmerican Airlines
mié. 9/312:19 pmBIL - ORD
Nonstop2h 54mAmerican Airlines
Deal found 7/30$210
This American Airlines deal was found by Cheapflights users on 7/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/51:20 pmORD - BZN
1 stop6h 57mAmerican Airlines
jue. 9/1112:44 pmBZN - ORD
1 stop9h 55mAmerican Airlines
Deal found 7/29$211
This Southwest deal was found by Cheapflights users on 7/30. 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.
mar. 10/147:00 pmMDW - BZN
1 stop5h 25mSouthwest
jue. 10/168:00 pmBZN - MDW
1 stop8h 15mSouthwest
Deal found 7/30$211
This United Airlines deal was found by Cheapflights users on 7/30. 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.
mié. 8/277:15 amORD - BZN
1 stop7h 16mUnited Airlines
mié. 9/34:20 pmBZN - ORD
1 stop6h 39mUnited Airlines
Deal found 7/30$216
This United Airlines deal was found by Cheapflights users on 7/30. 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.
mié. 8/272:53 pmORD - BIL
1 stop6h 41mUnited Airlines
mié. 9/312:00 pmBIL - ORD
Nonstop3h 00mUnited Airlines
Deal found 7/30$220
This Mytrip deal was found by Cheapflights users on 7/31. 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.
jue. 8/148:12 pmORD - BZN
2 stops16h 30mMultiple Airlines
vie. 8/225:48 pmBZN - ORD
2 stops24h 19mMultiple Airlines
Deal found 7/31$224
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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.
lun. 9/156:20 amORD - BZN
1 stop8h 54mAlaska Airlines
vie. 9/263:08 pmBZN - ORD
1 stop7h 55mAlaska Airlines
Deal found 7/31$228
This American Airlines deal was found by Cheapflights users on 7/30. 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.
vie. 9/128:36 pmORD - MSO
Nonstop3h 42mAmerican Airlines
mar. 9/161:51 pmMSO - ORD
1 stop6h 54mAmerican Airlines
Deal found 7/30$230
This Netflights deal was found by Cheapflights users on 7/30. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/175:45 pmORD - MSO
1 stop7h 42mHawaiian Airlines
sáb. 9/206:35 amMSO - ORD
1 stop6h 49mHawaiian Airlines
Deal found 7/30$236
This Delta deal was found by Cheapflights users on 7/30. 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.
sáb. 8/165:30 pmORD - BZN
1 stop6h 59mDelta
sáb. 9/66:05 amBZN - ORD
1 stop4h 59mDelta
Deal found 7/30$237
This Delta deal was found by Cheapflights users on 7/30. 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.
mar. 8/196:04 amMDW - BZN
1 stop8h 04mDelta
sáb. 8/236:05 amBZN - MDW
1 stop5h 58mDelta
Deal found 7/30$237

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 julio 31, 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

sáb. 9/6

8:00 am-2:14 pm

1 stop7h 14m

Bozeman Gallatin Field

vie. 9/12

11:26 am-10:07 pm

1 stop9h 41m

$210

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

mié. 8/27

8:46 pm-11:00 pm

Nonstop3h 14m

Billings Logan Intl

mié. 9/3

12:19 pm-4:13 pm

Nonstop2h 54m

$210

ChicagoBozeman

MDW - BZN

MDWBZN

Chicago Midway

mar. 10/14

7:00 pm-11:25 pm

1 stop5h 25m

Bozeman Gallatin Field

jue. 10/16

8:00 pm-5:15 am

1 stop8h 15m

$211

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

vie. 9/5

1:20 pm-7:17 pm

1 stop6h 57m

Bozeman Gallatin Field

jue. 9/11

12:44 pm-11:39 pm

1 stop9h 55m

$211

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

mié. 8/27

7:15 am-1:31 pm

1 stop7h 16m

Bozeman Gallatin Field

mié. 9/3

4:20 pm-11:59 pm

1 stop6h 39m

$216

ChicagoBillings

ORD - BIL

ORDBIL

Chicago O'Hare Intl

mié. 8/27

2:53 pm-8:34 pm

1 stop6h 41m

Billings Logan Intl

mié. 9/3

12:00 pm-4:00 pm

Nonstop3h 00m

$220

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

jue. 8/14

8:12 pm-11:42 am

2 stops16h 30m

Bozeman Gallatin Field

vie. 8/22

5:48 pm-7:07 pm

2 stops24h 19m

$224

ChicagoBozeman

ORD - BZN

ORDBZN

Chicago O'Hare Intl

lun. 9/15

6:20 am-2:14 pm

1 stop8h 54m

Bozeman Gallatin Field

vie. 9/26

3:08 pm-12:03 am

1 stop7h 55m

$228

ChicagoMissoula

ORD - MSO

ORDMSO

Chicago O'Hare Intl

vie. 9/12

8:36 pm-11:18 pm

Nonstop3h 42m

Missoula Johnson-Bell Field

mar. 9/16

1:51 pm-9:45 pm

1 stop6h 54m

$230

ChicagoMissoula

ORD - MSO

ORDMSO

Chicago O'Hare Intl

mié. 9/17

5:45 pm-12:27 am

1 stop7h 42m

Missoula Johnson-Bell Field

sáb. 9/20

6:35 am-2:24 pm

1 stop6h 49m

$236

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 $371). Flying from Chicago to Montana 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 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 julio 31, 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.

Weekly flight availability from Chicago to Montana

Explore weekly flight availability from Chicago to Montana. 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 julio 31, 2025.

The most flights from CHI to USMT are scheduled on a Thursday (10 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 on average).

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 julio 31, 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
10,000 reviews

Food

7.1

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 United Airlines. According to our data, you can fly for as low as $96. Users have also found prices from $96 and $100 on Southwest and Alaska 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 - Kalispell Glacier Park, Chicago O'Hare Intl - Bozeman Gallatin Field or Chicago Midway - 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 (87%), United Airlines (75%), American 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 $280, our data indicates the cheapest price to be $129. The most popular route (Chicago O'Hare Intl - Kalispell Glacier Park), is priced around $240.

  • 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 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

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 LaGuardia flights
O'Hare Intl to John F Kennedy Intl flights
O'Hare Intl to Newark flights
O'Hare Intl to Dallas/Fort Worth flights
O'Hare Intl to Las Vegas flights
O'Hare Intl to Seattle flights
O'Hare Intl to Denver flights
O'Hare Intl to Boston flights
O'Hare Intl to Los Angeles flights
O'Hare Intl to Sky Harbor Intl flights
O'Hare Intl to Orlando flights
Midway to Las Vegas flights
O'Hare Intl to Fort Lauderdale flights
O'Hare Intl to Miami flights
Midway to LaGuardia flights
Midway to Newark flights
O'Hare Intl to San Francisco flights
O'Hare Intl to San Diego flights
O'Hare Intl to Ontario flights
O'Hare Intl to Reagan-National flights
O'Hare Intl to Honolulu flights
O'Hare Intl to Dulles Intl flights
Midway to John F Kennedy Intl flights
O'Hare Intl to Philadelphia flights
O'Hare Intl to Atlanta flights
St. Louis to Las Vegas flights
O'Hare Intl to Santa Ana flights
Midway to Miami flights
O'Hare Intl to Nashville flights
O'Hare Intl to Portland flights
O'Hare Intl to Tampa flights
O'Hare Intl to Austin flights
Midway to Orlando flights
O'Hare Intl to Baltimore flights
St. Louis to Seattle flights
O'Hare Intl to Hobby flights
O'Hare Intl to George Bush Intcntl flights
Midway to Dallas/Fort Worth flights
Midway to Denver flights
Midway to Seattle flights
O'Hare Intl to Salt Lake City flights
O'Hare Intl to Raleigh flights
Midway to Atlanta flights
Midway to San Francisco flights
O'Hare Intl to West Palm Beach flights
O'Hare Intl to Fort Myers flights
O'Hare Intl to Charlotte flights
O'Hare Intl to Love Field flights
O'Hare Intl to Burbank flights
St. Louis to LaGuardia 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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$210Average$454FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$211Average$405FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$225Average$478FlexibilityNo cancel feeOn-time75%
DeltaCheapest$236Average$345FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$526FlexibilityNo cancel feeOn-time69%

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.