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$104+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — ORD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$249
(American Airlines)

One-way from

$104
(Kiwi.com)

Popular in

February

Cheapest in

July

Average price

$403

Good round-trip deal

$379 or less

Good one-way deal

$223 or less
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. 6% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 11, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 11/131:59 pmMSO - ORD
1 stop9h 25mHawaiian Airlines
Tue 11/183:25 pmORD - MSO
1 stop9h 18mHawaiian Airlines
Deal found 9/11$257
This Hawaiian Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 11/84:12 pmMSO - ORD
1 stop7h 12mHawaiian Airlines
Wed 11/123:25 pmORD - MSO
1 stop9h 18mHawaiian Airlines
Deal found 9/11$266
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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 11/74:12 pmMSO - ORD
1 stop7h 12mAlaska Airlines
Thu 11/135:53 pmORD - MSO
1 stop6h 50mAlaska Airlines
Deal found 9/11$269
This Delta deal was found by Cheapflights users on 9/11. 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 11/85:25 amMSO - ORD
2 stops9h 46mDelta
Wed 11/127:33 amORD - MSO
1 stop6h 00mDelta
Deal found 9/11$274
This Delta deal was found by Cheapflights users on 9/11. 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 11/85:25 amMSO - MDW
2 stops12h 00mDelta
Tue 11/111:47 pmMDW - MSO
1 stop8h 37mDelta
Deal found 9/11$274
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 10/88:30 amMSO - ORD
1 stop19h 31mAlaska Airlines
Wed 10/156:00 amORD - MSO
1 stop13h 00mAlaska Airlines
Deal found 9/11$277
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/2412:30 pmMSO - ORD
Nonstop3h 34mUnited Airlines
Sun 9/288:52 amORD - MSO
Nonstop3h 58mUnited Airlines
Deal found 9/10$289
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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 11/74:12 pmMSO - ORD
1 stop7h 12mAlaska Airlines
Wed 11/122:05 pmORD - MSO
2 stops10h 38mAlaska Airlines
Deal found 9/11$295
This Delta deal was found by Cheapflights users on 9/11. 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 11/95:25 amMSO - ORD
2 stops12h 01mDelta
Wed 11/129:46 amORD - MSO
2 stops12h 38mDelta
Deal found 9/11$303
This Hawaiian Airlines deal was found by Cheapflights users on 9/11. 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.
Tue 11/44:12 pmMSO - ORD
1 stop7h 12mHawaiian Airlines
Sun 11/96:00 amORD - MSO
1 stop7h 19mHawaiian Airlines
Deal found 9/11$307
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 9/244:14 pmMSO - ORD
1 stop6h 49mAlaska Airlines
Sun 9/286:20 amORD - MSO
1 stop7h 12mAlaska Airlines
Deal found 9/10$308
This Delta deal was found by Cheapflights users on 9/11. 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 11/85:25 amMSO - MDW
2 stops11h 18mDelta
Wed 11/121:14 pmMDW - MSO
2 stops9h 10mDelta
Deal found 9/11$324

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 September 11, 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

Fri 11/7

4:12 pm-12:24 am

1 stop7h 12m

Chicago O'Hare Intl

Thu 11/13

5:53 pm-11:43 pm

1 stop6h 50m

$269

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Sat 11/8

8:00 am-4:50 pm

1 stop7h 50m

Chicago O'Hare Intl

Tue 11/11

7:33 am-12:33 pm

1 stop6h 00m

$269

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Wed 10/8

2:33 pm-11:59 pm

1 stop8h 26m

Chicago O'Hare Intl

Wed 10/15

2:17 pm-9:25 pm

1 stop8h 08m

$269

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Wed 1/21

2:35 pm-11:59 pm

1 stop8h 24m

Chicago O'Hare Intl

Mon 1/26

7:45 am-1:52 pm

1 stop7h 07m

$269

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Fri 11/7

5:10 pm-11:59 pm

1 stop5h 49m

Chicago O'Hare Intl

Tue 11/11

10:40 am-4:01 pm

1 stop6h 21m

$269

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Sun 11/9

6:32 am-4:57 pm

1 stop9h 25m

Chicago O'Hare Intl

Thu 11/13

5:53 pm-11:43 pm

1 stop6h 50m

$269

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Sun 11/9

6:32 am-4:57 pm

1 stop9h 25m

Chicago O'Hare Intl

Wed 11/12

2:05 pm-12:13 am

1 stop11h 08m

$269

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Sat 11/8

5:25 am-4:11 pm

2 stops9h 46m

Chicago O'Hare Intl

Wed 11/12

7:33 am-12:33 pm

1 stop6h 00m

$274

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Wed 1/21

8:00 am-8:38 pm

2 stops11h 38m

Chicago O'Hare Intl

Mon 1/26

6:59 pm-12:31 am

1 stop6h 32m

$274

MissoulaChicago

MSO - MDW

MSOMDW

Missoula Johnson-Bell Field

Sat 11/8

5:25 am-5:43 pm

2 stops11h 18m

Chicago Midway

Wed 11/12

1:47 pm-9:24 pm

1 stop8h 37m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 49 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 September 11, 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.

Weekly flight availability from Missoula to Illinois

Explore weekly flight availability from Missoula to Illinois. 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 September 11, 2025.

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

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 September 11, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and United Airlines from Missoula to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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.

  • How long is the flight from Missoula to Illinois?

    Airlines like Alaska Airlines, Delta, and United Airlines fly from Missoula to Illinois in about 5h 21m. The time it takes to get you to your destination can typically vary by up to 2h 29m. There are 1222 mi between Missoula and Illinois. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $128. Users have also found prices from $194 and $265 on Hawaiian Airlines and Delta, 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 most reliable airlines from Missoula to Illinois?

    Before booking your flight to Illinois from Missoula, check out the most reliable airlines to get you to your destination on time: Alaska Airlines (71%), United Airlines (70%), American Airlines( 69%).

  • What are the cheapest flights from Missoula to Illinois?

    On average you can expect to pay $402 for a flight from Missoula to Illinois. The cheapest flight overall is $167 while the most popular route, (Missoula Johnson-Bell Field - Chicago O'Hare Intl) is currently priced at $257.

  • 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.

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$191Average$341FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$267Average$433FlexibilityNo cancel feeOn-time75%
DeltaCheapest$288Average$363FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$293Average$437FlexibilityNo cancel feeOn-time69%

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