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$105+ Cheap flights from Montana to Chicago (CHI)

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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — CHI
Apr 27 — May 41
Sun 4/27
Sun 5/4
1 adult, Economy
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Cheap flight deals from Montana to Chicago

Keep the following information in mind while searching for Montana to Chicago flight deals. Data was last updated April 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$209
(American Airlines)

One-way from

$105
(Hawaiian Airlines)

Popular in

November

Cheapest in

January

Average price

$486

Good round-trip deal

$380 or less

Good one-way deal

$184 or less
Provider with most accurate pricing for Bozeman Gallatin Field-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Bozeman Gallatin Field-Chicago (CHI) flights.
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From Montana to Chicago (CHI)
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One-way flight from Montana to Chicago (CHI)
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Highest demand for flights based on searches. 12% potential increase in price ($58 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Montana to Chicago (CHI).
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Price to beat on a one-way flight from Montana to Chicago (CHI).
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Find flight deals from Montana to Chicago

Cheapest flights from Montana to Chicago
Explore the most affordable flight options available from Montana to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2025.

This American Airlines deal was found by Cheapflights users on 4/21. 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 8/1412:35 pmBIL - ORD
Nonstop2h 58mAmerican Airlines
Sun 8/178:45 pmORD - BIL
Nonstop3h 22mAmerican Airlines
Deal found 4/21$209
This American Airlines deal was found by Cheapflights users on 4/21. 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 8/63:22 pmBZN - ORD
Nonstop3h 13mAmerican Airlines
Mon 8/1112:17 pmORD - BZN
Nonstop3h 15mAmerican Airlines
Deal found 4/21$211
This Southwest deal was found by Cheapflights users on 4/21. 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 7/1012:20 pmBZN - MDW
Nonstop2h 55mSouthwest
Mon 7/145:35 pmMDW - BZN
1 stop7h 15mSouthwest
Deal found 4/21$221
This United Airlines deal was found by Cheapflights users on 4/22. 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 6/134:21 pmBZN - ORD
1 stop7h 04mUnited Airlines
Sun 6/158:05 pmORD - BZN
Nonstop3h 24mUnited Airlines
Deal found 4/22$221
This American Airlines deal was found by Cheapflights users on 4/21. 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 7/41:10 pmFCA - ORD
Nonstop3h 20mAmerican Airlines
Tue 7/81:31 pmORD - FCA
Nonstop3h 40mAmerican Airlines
Deal found 4/21$225
This American Airlines deal was found by Cheapflights users on 4/21. 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 7/25:38 amMSO - ORD
Nonstop3h 29mAmerican Airlines
Sun 7/138:38 pmORD - MSO
Nonstop3h 55mAmerican Airlines
Deal found 4/21$235
This Delta deal was found by Cheapflights users on 4/22. 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.
Fri 6/1311:25 amBZN - MDW
1 stop5h 15mDelta
Sun 6/159:21 amMDW - BZN
1 stop6h 09mDelta
Deal found 4/22$237
This Delta deal was found by Cheapflights users on 4/21. 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.
Thu 6/56:10 amBZN - ORD
1 stop4h 37mDelta
Thu 6/127:20 pmORD - BZN
1 stop5h 41mDelta
Deal found 4/21$237
This United Airlines deal was found by Cheapflights users on 4/21. 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 8/142:25 pmMSO - ORD
1 stop5h 45mUnited Airlines
Tue 8/198:50 amORD - MSO
Nonstop3h 37mUnited Airlines
Deal found 4/21$241
This United Airlines deal was found by Cheapflights users on 4/21. 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 6/112:32 pmFCA - ORD
1 stop8h 53mUnited Airlines
Tue 6/175:02 amORD - FCA
1 stop6h 01mUnited Airlines
Deal found 4/21$245
This Delta deal was found by Cheapflights users on 4/21. 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 6/115:30 amFCA - ORD
2 stops10h 16mDelta
Tue 6/175:39 pmORD - FCA
1 stop7h 15mDelta
Deal found 4/21$250
This Delta deal was found by Cheapflights users on 4/21. 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 6/115:30 amFCA - MDW
2 stops11h 10mDelta
Tue 6/177:21 pmMDW - FCA
1 stop5h 33mDelta
Deal found 4/21$250

Cheapflights Fare Finder

Customize your flight search to find flights from Montana to Chicago 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 April 22, 2025.
Use the filters below to find and compare flights from Montana to Chicago that are best for you.

Fly from

Montana

Fly to

Chicago

Route

Depart

Return

Price

BillingsChicago

BIL - ORD

BILORD

Billings Logan Intl

Thu 8/14

12:35 pm-4:33 pm

Nonstop2h 58m

Chicago O'Hare Intl

Sun 8/17

8:45 pm-11:07 pm

Nonstop3h 22m

$209

BozemanChicago

BZN - ORD

BZNORD

Bozeman Gallatin Field

Wed 8/6

3:22 pm-7:35 pm

Nonstop3h 13m

Chicago O'Hare Intl

Mon 8/11

12:17 pm-2:32 pm

Nonstop3h 15m

$211

BozemanChicago

BZN - MDW

BZNMDW

Bozeman Gallatin Field

Thu 7/10

12:20 pm-4:15 pm

Nonstop2h 55m

Chicago Midway

Mon 7/14

5:35 pm-11:50 pm

1 stop7h 15m

$221

BozemanChicago

BZN - ORD

BZNORD

Bozeman Gallatin Field

Fri 6/13

4:21 pm-12:25 am

1 stop7h 04m

Chicago O'Hare Intl

Sun 6/15

8:05 pm-10:29 pm

Nonstop3h 24m

$221

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

Fri 7/4

1:10 pm-5:30 pm

Nonstop3h 20m

Chicago O'Hare Intl

Tue 7/8

1:31 pm-4:11 pm

Nonstop3h 40m

$225

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Wed 7/2

5:38 am-10:07 am

Nonstop3h 29m

Chicago O'Hare Intl

Sun 7/13

8:38 pm-11:33 pm

Nonstop3h 55m

$235

BozemanChicago

BZN - MDW

BZNMDW

Bozeman Gallatin Field

Fri 6/13

11:25 am-5:40 pm

1 stop5h 15m

Chicago Midway

Sun 6/15

9:21 am-2:30 pm

1 stop6h 09m

$237

BozemanChicago

BZN - ORD

BZNORD

Bozeman Gallatin Field

Thu 6/5

6:10 am-11:47 am

1 stop4h 37m

Chicago O'Hare Intl

Thu 6/12

7:20 pm-12:01 am

1 stop5h 41m

$237

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Thu 8/14

2:25 pm-9:10 pm

1 stop5h 45m

Chicago O'Hare Intl

Tue 8/19

8:50 am-11:27 am

Nonstop3h 37m

$241

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

Wed 6/11

2:32 pm-12:25 am

1 stop8h 53m

Chicago O'Hare Intl

Tue 6/17

5:02 am-10:03 am

1 stop6h 01m

$245

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

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

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

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

Currently, August is the cheapest month in which you can book a flight from Montana to Chicago (average of $245). Flying from Montana to Chicago in March is currently the most expensive (average of $321). 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 MT to CHI?

Find hourly flight availability from Montana to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 22, 2025.

When flying from Montana to Chicago, 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 Chicago by month

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

In terms of precipitation, rainfall in Chicago ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

Temperature in Chicago by month

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

If weather is an important factor for your trip to Chicago, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated April 22, 2025.
To help decide which airline to fly from Montana to Chicago, see what other customers have to say about Alaska Airlines, Southwest and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,906 reviews

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,906 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,392 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,684 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Montana to Chicago. 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 Montana to Chicago one-way?

    The cheapest airlines for a one-way flight from Montana to Chicago are Hawaiian Airlines ($105), Southwest ($106), and American Airlines ($106).

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

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

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

    No one likes to see their flight delayed. When booking a flight from Montana to Chicago consider choosing Lufthansa (80%), Emirates (77%) or SkyWest Airlines (71%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Montana to Chicago?

    On average you can expect to pay $698 for a flight from Montana to Chicago. The cheapest flight overall is $122 while the most popular route, (Missoula Johnson-Bell Field - Chicago O'Hare Intl) is currently priced at $235.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Montana to Chicago (average of $245). Flying from Montana to Chicago in March is currently the most expensive (average of $321). 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 Montana?

Book flights to Montana if you plan to visit one of these locations
Merrillville
Hammond
Benton Harbor
Porter
Lansing
Valparaiso
Chesterton

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Alternative routes for Montana to Chicago

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

Discover the top 5 airlines that operate flights from Montana to Chicago. 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 April 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$205Average$453FlexibilityNo cancel feeOn-time75%
DeltaCheapest$216Average$415FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$238Average$526FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$239Average$439FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$388Average$418FlexibilityNo cancel feeOn-time63%

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