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$124+ 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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — CHI
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Montana to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Montana (USMT) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$269
(Alaska Airlines)

One-way from

$124
(Alaska Airlines)

Good round-trip deal

$411 or less

Good one-way deal

$223 or less
From Montana to Chicago (CHI)
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One-way flight from Montana to Chicago (CHI)
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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 January 21, 2025.

This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:35 pmMSO - ORD
1 stop8h 24mAlaska Airlines
Mon 11/36:50 pmORD - MSO
1 stop16h 26mAlaska Airlines
Deal found 1/20$248
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/42:53 pmBZN - ORD
1 stop8h 06mAlaska Airlines
Fri 3/75:54 pmORD - BZN
1 stop7h 05mAlaska Airlines
Deal found 1/21$269
This Delta deal was found by Cheapflights users on 1/20. 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.
Tue 4/17:30 amMSO - MDW
1 stop5h 45mDelta
Wed 4/231:16 pmMDW - MSO
1 stop8h 01mDelta
Deal found 1/20$269
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 2/1312:50 pmBZN - ORD
Nonstop2h 58mUnited Airlines
Mon 2/179:15 amORD - BZN
Nonstop3h 31mUnited Airlines
Deal found 1/20$289
This Delta deal was found by Cheapflights users on 1/21. 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.
Sat 4/121:18 pmBZN - ORD
1 stop7h 12mDelta
Tue 4/156:40 amORD - BZN
1 stop6h 52mDelta
Deal found 1/21$305
This Southwest deal was found by Cheapflights users on 1/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/255:05 amBZN - MDW
1 stop5h 55mSouthwest
Wed 2/266:20 amMDW - BZN
1 stop6h 40mSouthwest
Deal found 1/20$309
This Delta deal was found by Cheapflights users on 1/19. 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.
Wed 3/266:00 amBZN - MDW
1 stop7h 15mDelta
Sat 3/291:12 pmMDW - BZN
2 stops10h 52mDelta
Deal found 1/19$310
This Delta deal was found by Cheapflights users on 1/20. 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.
Wed 3/265:25 amFCA - ORD
1 stop6h 19mDelta
Wed 4/96:15 amORD - FCA
1 stop7h 39mDelta
Deal found 1/20$325
This Delta deal was found by Cheapflights users on 1/21. 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 2/137:30 amMSO - ORD
1 stop7h 00mDelta
Mon 2/177:18 pmORD - MSO
1 stop6h 27mDelta
Deal found 1/21$329
This Delta deal was found by Cheapflights users on 1/20. 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.
Fri 2/281:30 pmHLN - ORD
1 stop6h 57mDelta
Tue 3/47:20 amORD - HLN
1 stop6h 30mDelta
Deal found 1/20$335
This Delta deal was found by Cheapflights users on 1/20. 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.
Thu 3/136:29 amBIL - ORD
1 stop4h 01mDelta
Mon 3/177:15 pmORD - BIL
1 stop6h 01mDelta
Deal found 1/20$337
This Delta deal was found by Cheapflights users on 1/21. 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.
Sun 3/96:29 amBIL - MDW
1 stop6h 46mDelta
Wed 3/122:55 pmMDW - BIL
2 stops10h 21mDelta
Deal found 1/21$340

Find flights from Montana to Chicago within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BozemanChicago

BZN - ORD

BZNORD

Bozeman Gallatin Field

Tue 3/4

2:53 pm-11:59 pm

1 stop8h 06m

Chicago O'Hare Intl

Fri 3/7

5:54 pm-11:59 pm

1 stop7h 05m

$269

MissoulaChicago

MSO - MDW

MSOMDW

Missoula Johnson-Bell Field

Tue 4/1

7:30 am-2:15 pm

1 stop5h 45m

Chicago Midway

Wed 4/23

1:16 pm-8:17 pm

1 stop8h 01m

$269

BozemanChicago

BZN - ORD

BZNORD

Bozeman Gallatin Field

Thu 2/13

12:50 pm-4:48 pm

Nonstop2h 58m

Chicago O'Hare Intl

Mon 2/17

9:15 am-11:46 am

Nonstop3h 31m

$289

BozemanChicago

BZN - ORD

BZNORD

Bozeman Gallatin Field

Sat 4/12

1:18 pm-9:30 pm

1 stop7h 12m

Chicago O'Hare Intl

Tue 4/15

6:40 am-12:32 pm

1 stop6h 52m

$305

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Thu 3/6

2:36 pm-11:59 pm

1 stop8h 23m

Chicago O'Hare Intl

Mon 3/10

7:00 pm-1:40 pm

2 stops19h 40m

$307

BozemanChicago

BZN - MDW

BZNMDW

Bozeman Gallatin Field

Tue 2/25

5:05 am-12:00 pm

1 stop5h 55m

Chicago Midway

Wed 2/26

6:20 am-12:00 pm

1 stop6h 40m

$309

BozemanChicago

BZN - MDW

BZNMDW

Bozeman Gallatin Field

Wed 3/26

6:00 am-2:15 pm

1 stop7h 15m

Chicago Midway

Sat 3/29

1:12 pm-11:04 pm

2 stops10h 52m

$310

KalispellChicago

FCA - ORD

FCAORD

Kalispell Glacier Park

Wed 3/26

5:25 am-12:44 pm

1 stop6h 19m

Chicago O'Hare Intl

Wed 4/9

6:15 am-12:54 pm

1 stop7h 39m

$325

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Thu 2/13

7:30 am-3:30 pm

1 stop7h 00m

Chicago O'Hare Intl

Mon 2/17

7:18 pm-12:45 am

1 stop6h 27m

$329

HelenaChicago

HLN - ORD

HLNORD

Helena

Fri 2/28

1:30 pm-9:27 pm

1 stop6h 57m

Chicago O'Hare Intl

Tue 3/4

7:20 am-12:50 pm

1 stop6h 30m

$335

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

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.

Travel insights for flights from Montana to Chicago

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

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 $320). 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 January 21, 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.

Weekly flight availability from Montana to Chicago

Explore weekly flight availability from Montana to Chicago. 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 January 21, 2025.

The most flights from USMT to CHI are scheduled on a Monday (6 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

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 January 21, 2025.
To help decide which airline to fly from Montana to Chicago, see what other customers have to say about Alaska Airlines, Delta and Southwest. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,984 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 Alaska Airlines ($124), American Airlines ($145), and Delta ($153).

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

    When deciding which route to take from Montana to Chicago consider Kalispell Glacier Park - Chicago O'Hare Intl, Bozeman Gallatin Field - Chicago O'Hare Intl or Missoula Johnson-Bell Field - 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 United Airlines (85%), Lufthansa (82%) or Envoy Air (81%) 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 $988 for a flight from Montana to Chicago. The cheapest flight overall is $158 while the most popular route, (Kalispell Glacier Park - Chicago O'Hare Intl) is currently priced at $325.

  • 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 $320). 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
New Buffalo
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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$226Average$448FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$229Average$468FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$238Average$552FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$257Average$392FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$388Average$390FlexibilityNo cancel feeOn-time63%
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