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$127+ Cheap flights from Missoula (MSO) to Illinois

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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — ORD
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheap flight deals from Missoula to Illinois

Keep the following information in mind while searching for Missoula to Illinois flight deals. Data was last updated April 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Priceline
3 stars

Round-trip from

$235
(American Airlines)

One-way from

$127
(Alaska Airlines)

Popular in

February

Cheapest in

November

Average price

$397

Good round-trip deal

$380 or less

Good one-way deal

$209 or less
Provider with most accurate pricing for Missoula Johnson-Bell Field-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Missoula Johnson-Bell Field-Chicago (CHI) flights.
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From Missoula Johnson-Bell Field to Illinois
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One-way flight from Missoula Johnson-Bell Field to Illinois
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Highest demand for flights based on searches. 8% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 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 Missoula Johnson-Bell Field to Illinois.
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Price to beat on a one-way flight from Missoula Johnson-Bell Field to Illinois.
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Find flight deals from Missoula to Illinois

Cheapest flights from Missoula to Illinois
Explore the most affordable flight options available from Missoula to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This American Airlines deal was found by Cheapflights users on 4/23. 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 7/175:07 amMSO - ORD
Nonstop3h 24mAmerican Airlines
Sun 7/208:38 pmORD - MSO
Nonstop3h 55mAmerican Airlines
Deal found 4/23$235
This United Airlines deal was found by Cheapflights users on 4/23. 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 6/2612:40 pmMSO - ORD
Nonstop3h 24mUnited Airlines
Mon 6/305:00 amORD - MSO
1 stop5h 56mUnited Airlines
Deal found 4/23$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.
Tue 7/11:08 pmMSO - ORD
1 stop8h 01mDelta
Wed 7/166:59 pmORD - MSO
1 stop6h 25mDelta
Deal found 4/21$255
This Delta deal was found by Cheapflights users on 4/23. 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 6/175:53 amMSO - MDW
1 stop6h 13mDelta
Sat 6/211:47 pmMDW - MSO
2 stops10h 10mDelta
Deal found 4/23$259
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/304:13 pmMSO - ORD
1 stop6h 46mAlaska Airlines
Sat 7/127:00 amORD - MSO
1 stop7h 36mAlaska Airlines
Deal found 4/21$261
This Hawaiian 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/211:59 pmMSO - ORD
1 stop9h 00mHawaiian Airlines
Wed 5/2810:00 amORD - MSO
1 stop8h 59mHawaiian Airlines
Deal found 4/22$269
This Delta deal was found by Cheapflights users on 4/23. 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 6/136:24 pmMSO - STL
1 stop5h 19mDelta
Sat 6/211:23 pmSTL - MSO
2 stops11h 23mDelta
Deal found 4/23$371
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1310:06 pmMSO - ORD
2 stops34h 16mMultiple Airlines
Sun 6/229:35 pmORD - MSO
1 stop19h 01mMultiple Airlines
Deal found 4/22$371
This American Airlines deal was found by Cheapflights users on 4/23. 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 5/151:22 pmMSO - MLI
1 stop7h 02mAmerican Airlines
Tue 5/206:30 amMLI - MSO
1 stop6h 56mAmerican Airlines
Deal found 4/23$424
This Alaska Airlines deal was found by Cheapflights users on 4/23. 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 5/166:39 pmMSO - STL
1 stop18h 28mAlaska Airlines
Mon 5/196:22 pmSTL - MSO
1 stop18h 51mAlaska Airlines
Deal found 4/23$485
This American Airlines deal was found by Cheapflights users on 4/23. 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 6/131:54 pmMSO - STL
1 stop6h 00mAmerican Airlines
Sat 6/213:08 pmSTL - MSO
1 stop8h 26mAmerican Airlines
Deal found 4/23$500
This United Airlines deal was found by Cheapflights users on 4/23. 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 5/162:35 pmMSO - STL
1 stop5h 26mUnited Airlines
Mon 5/195:29 pmSTL - MSO
2 stops21h 04mUnited Airlines
Deal found 4/23$525

Cheapflights Fare Finder

Customize your flight search to find flights from Missoula to Illinois 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 24, 2025.
Use the filters below to find and compare flights from Missoula to Illinois that are best for you.

Fly from

Missoula

Fly to

Illinois

Route

Depart

Return

Price

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Thu 7/17

5:07 am-9:31 am

Nonstop3h 24m

Chicago O'Hare Intl

Sun 7/20

8:38 pm-11:33 pm

Nonstop3h 55m

$235

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Thu 6/26

12:40 pm-5:04 pm

Nonstop3h 24m

Chicago O'Hare Intl

Sun 6/29

5:00 am-9:56 am

1 stop5h 56m

$245

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Tue 7/1

1:08 pm-10:09 pm

1 stop8h 01m

Chicago O'Hare Intl

Thu 7/10

5:20 pm-11:54 pm

1 stop7h 34m

$255

MissoulaChicago

MSO - MDW

MSOMDW

Missoula Johnson-Bell Field

Tue 6/17

5:53 am-1:06 pm

1 stop6h 13m

Chicago Midway

Sat 6/21

1:47 pm-10:57 pm

2 stops10h 10m

$259

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Mon 6/30

4:13 pm-11:59 pm

1 stop6h 46m

Chicago O'Hare Intl

Sat 7/12

7:00 am-1:36 pm

1 stop7h 36m

$261

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Fri 6/13

10:06 pm-9:22 am

2 stops34h 16m

Chicago O'Hare Intl

Sun 6/22

9:35 pm-3:36 pm

1 stop19h 01m

$371

MissoulaSt. Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

Fri 6/13

6:24 pm-12:43 am

1 stop5h 19m

Lambert-St Louis

Sat 6/21

1:23 pm-11:46 pm

2 stops11h 23m

$371

MissoulaMoline

MSO - MLI

MSOMLI

Missoula Johnson-Bell Field

Thu 5/15

1:22 pm-9:24 pm

1 stop7h 02m

Moline Quad-City

Tue 5/20

6:30 am-12:26 pm

1 stop6h 56m

$424

MissoulaSt. Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

Fri 5/16

6:39 pm-2:07 pm

1 stop18h 28m

Lambert-St Louis

Mon 5/19

6:22 pm-12:13 pm

1 stop18h 51m

$485

MissoulaSt. Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

Fri 6/13

1:54 pm-8:54 pm

1 stop6h 00m

Lambert-St Louis

Sat 6/21

3:08 pm-10:34 pm

1 stop8h 26m

$500

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 23 results
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Best time to book a flight from Missoula to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Missoula 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 Missoula to Illinois

What is the cheapest month to book a flight from Missoula to Illinois?

Currently, August is the cheapest month in which you can book a flight from Missoula to Illinois (average of $245). Flying from Missoula to Illinois 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 MSO to IL?

Find hourly flight availability from Missoula to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Missoula to Illinois as you normally would.

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois 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 Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated April 24, 2025.
To help decide which airline to fly from Missoula to Illinois, see what other customers have to say about Alaska Airlines, Delta and Hawaiian Airlines. 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
9,918 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

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
9,918 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

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
9,918 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

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
2,393 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

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
8,685 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

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 Missoula to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Missoula to Illinois?

    If you book a flight to Illinois from Missoula, you will be flying from Johnson-Bell Field, which is the city’s only airport. Missoula Johnson-Bell Field (MSO) is located 5.5 mi from the center of Missoula.

  • What are the cheapest airlines to fly from Missoula to Illinois one-way?

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $127. Users have also found prices from $128 and $143 on Delta and American Airlines, respectively.

  • What are the most popular routes from Missoula to Illinois?

    The most popular route from Missoula to Illinois is Missoula Johnson-Bell Field - Chicago O'Hare Intl. You may also consider Missoula Johnson-Bell Field - Chicago Midway or Missoula Johnson-Bell Field - Lambert-St Louis.

  • What are the cheapest flights from Missoula to Illinois?

    On average you can expect to pay $394 for a flight from Missoula to Illinois. The cheapest flight overall is $142 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 Missoula to Illinois that include hotel bookings?

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

  • How can I find direct flights from Missoula to Illinois?

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

  • Can I find deals for business class flights from Missoula to Illinois?

    Yes. Cheapflights offers flight deals from Missoula to Illinois 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 Missoula to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Missoula to Illinois (average of $245). Flying from Missoula to Illinois 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

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Alternative routes for Missoula to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Missoula to Illinois

Discover the top 4 airlines that operate flights from Missoula to Illinois. 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 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$238Average$419FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$239Average$528FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$257Average$423FlexibilityNo cancel feeOn-time75%
DeltaCheapest$268Average$368FlexibilityNo cancel feeOn-timeN/A

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