HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$105+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — ORD
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Missoula to Illinois 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 Missoula to Illinois

Keep the following information in mind while searching for Missoula to Illinois flight deals. Data was last updated July 30, 2025.

Round-trip from

$191
(American Airlines)

One-way from

$105
(Hawaiian Airlines)

Popular in

February

Cheapest in

June

Average price

$343

Good round-trip deal

$347 or less

Good one-way deal

$278 or less
From Missoula Johnson-Bell Field to Illinois
Search Deals
One-way flight from Missoula Johnson-Bell Field to Illinois
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 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 Missoula Johnson-Bell Field to Illinois.
Search Deals
Price to beat on a one-way flight from Missoula Johnson-Bell Field to Illinois.
Search Deals

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 July 30, 2025.

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.
Thu 9/1112:50 pmMSO - ORD
Nonstop3h 31mAmerican Airlines
Mon 9/158:36 pmORD - MSO
Nonstop3h 42mAmerican Airlines
Deal found 7/30$191
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/114:14 pmMSO - ORD
1 stop6h 49mHawaiian Airlines
Wed 9/175:45 pmORD - MSO
1 stop7h 42mHawaiian Airlines
Deal found 7/30$199
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.
Thu 9/112:40 pmMSO - ORD
1 stop8h 19mUnited Airlines
Mon 9/152:53 pmORD - MSO
1 stop7h 29mUnited Airlines
Deal found 7/30$211
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/305:30 amMSO - ORD
1 stop5h 23mDelta
Tue 9/307:25 pmORD - MSO
1 stop5h 53mDelta
Deal found 7/29$237
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/305:45 amMSO - MDW
1 stop6h 18mDelta
Tue 9/307:15 pmMDW - MSO
1 stop5h 31mDelta
Deal found 7/29$237
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1012:40 pmMSO - ORD
1 stop10h 13mFrontier
Mon 10/136:00 amORD - MSO
1 stop7h 09mFrontier
Deal found 7/30$238
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/104:14 pmMSO - ORD
1 stop6h 49mAlaska Airlines
Fri 9/126:20 amORD - MSO
1 stop9h 58mAlaska Airlines
Deal found 7/29$240
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2910:27 pmMSO - ORD
1 stop12h 16mMultiple Airlines
Mon 9/158:15 amORD - MSO
1 stop8h 43mMultiple Airlines
Deal found 7/29$255
This Delta deal was found by Cheapflights users on 7/28. 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 8/235:49 amMSO - MLI
2 stops9h 30mDelta
Tue 8/266:00 amMLI - MSO
2 stops9h 36mDelta
Deal found 7/28$279
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.
Mon 8/251:51 pmMSO - STL
1 stop8h 23mAmerican Airlines
Wed 8/276:45 amSTL - MSO
1 stop9h 38mAmerican Airlines
Deal found 7/30$343
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.
Wed 12/38:00 amMSO - STL
2 stops7h 51mDelta
Sun 12/76:59 pmSTL - MSO
1 stop6h 33mDelta
Deal found 7/30$348
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Sat 8/231:51 pmMSO - PIA
1 stop8h 25mAmerican Airlines
Tue 8/267:00 amPIA - MSO
1 stop7h 01mAmerican Airlines
Deal found 7/28$349

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 July 30, 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 9/11

12:50 pm-5:21 pm

Nonstop3h 31m

Chicago O'Hare Intl

Mon 9/15

8:36 pm-11:18 pm

Nonstop3h 42m

$191

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Thu 9/11

4:14 pm-12:03 am

1 stop6h 49m

Chicago O'Hare Intl

Wed 9/17

5:45 pm-12:27 am

1 stop7h 42m

$199

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Thu 9/11

2:40 pm-11:59 pm

1 stop8h 19m

Chicago O'Hare Intl

Mon 9/15

2:53 pm-9:22 pm

1 stop7h 29m

$211

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Tue 9/30

5:30 am-11:53 am

1 stop5h 23m

Chicago O'Hare Intl

Tue 9/30

7:25 pm-12:18 am

1 stop5h 53m

$237

MissoulaChicago

MSO - MDW

MSOMDW

Missoula Johnson-Bell Field

Tue 9/30

5:45 am-1:03 pm

1 stop6h 18m

Chicago Midway

Tue 9/30

7:15 pm-11:46 pm

1 stop5h 31m

$237

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Fri 10/10

12:40 pm-11:53 pm

1 stop10h 13m

Chicago O'Hare Intl

Mon 10/13

6:00 am-12:09 pm

1 stop7h 09m

$238

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Wed 9/10

4:14 pm-12:03 am

1 stop6h 49m

Chicago O'Hare Intl

Fri 9/12

6:20 am-3:18 pm

1 stop9h 58m

$240

MissoulaChicago

MSO - ORD

MSOORD

Missoula Johnson-Bell Field

Fri 8/29

10:27 pm-11:43 am

1 stop12h 16m

Chicago O'Hare Intl

Mon 9/15

8:15 am-3:58 pm

1 stop8h 43m

$255

MissoulaMoline

MSO - MLI

MSOMLI

Missoula Johnson-Bell Field

Sat 8/23

5:49 am-4:19 pm

2 stops9h 30m

Moline Quad-City

Tue 8/26

6:00 am-2:36 pm

2 stops9h 36m

$279

MissoulaSt. Louis

MSO - STL

MSOSTL

Missoula Johnson-Bell Field

Mon 8/25

1:51 pm-11:14 pm

1 stop8h 23m

Lambert-St Louis

Wed 8/27

6:45 am-3:23 pm

1 stop9h 38m

$343

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 25 results
1
2
3

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 July 30, 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 July 30, 2025.

The most flights from MSO to USIL are scheduled on a Monday (7 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost to fly round-trip from Missoula to Illinois?

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 July 30, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and Hawaiian 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

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

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

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

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
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

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

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

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
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

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.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

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 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 Hawaiian Airlines. According to our data, you can fly for as low as $105. Users have also found prices from $117 and $125 on American Airlines and Frontier, 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 - Moline Quad-City.

  • 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: United Airlines (86%), American Airlines (73%), Envoy Air( 73%).

  • What are the cheapest flights from Missoula to Illinois?

    On average you can expect to pay $748 for a flight from Missoula to Illinois. The cheapest flight overall is $154 while the most popular route, (Missoula Johnson-Bell Field - Chicago O'Hare Intl) is currently priced at $201.

  • 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

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 Missoula to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Missoula to Seattle flights
Bozeman to Denver flights
Bozeman to O'Hare Intl flights
Kalispell to Hobby flights
Kalispell to San Francisco flights
Bozeman to Seattle flights
Missoula to San Francisco flights
Billings to Salt Lake City flights
Bozeman to Newark flights
Bozeman to Detroit flights
Missoula to O'Hare Intl flights
Bozeman to Dallas/Fort Worth flights
Bozeman to Atlanta flights
Butte to Hobby flights
Missoula to John F Kennedy Intl flights
Butte to George Bush Intcntl flights
Bozeman to Las Vegas flights
Billings to O'Hare Intl flights
Bozeman to Minneapolis flights
Kalispell to George Bush Intcntl flights
Bozeman to Philadelphia flights
Bozeman to Dulles Intl flights
Bozeman to Buffalo flights
Bozeman to Sky Harbor Intl flights
Bozeman to Los Angeles flights
Bozeman to San Francisco flights
Bozeman to Kansas City flights
Bozeman to Midway flights
Kalispell to Los Angeles flights
Bozeman to John F Kennedy Intl flights
Missoula to LaGuardia flights
Great Falls to Seattle flights
Bozeman to Boston flights
Bozeman to LaGuardia flights
Bozeman to Baltimore flights
Bozeman to Orlando flights
Missoula to Denver flights
Kalispell to Denver flights
Kalispell to Seattle flights
Great Falls to Denver flights
Billings to Portland flights
Missoula to Nashville flights
Missoula to Hobby flights
Missoula to Newark flights
Kalispell to Dallas/Fort Worth flights
Missoula to Dallas/Fort Worth flights
Missoula to Los Angeles flights
Billings to Seattle flights
Billings to Denver flights
Missoula to Minneapolis flights

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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$191Average$435FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$267Average$455FlexibilityNo cancel feeOn-time75%
DeltaCheapest$268Average$363FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$293Average$440FlexibilityNo 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.