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Missoula

$120+ Cheap flights from Illinois to Missoula (MSO)

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.
ORD — MSO
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Illinois to Missoula

Keep the following information in mind while searching for Illinois to Missoula flight deals. Data was last updated May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$235
(American Airlines)

One-way from

$120
(Delta)

Popular in

December

Cheapest in

October

Average price

$403

Good round-trip deal

$262 or less

Good one-way deal

$189 or less
Provider with most accurate pricing for Chicago (CHI)-Missoula Johnson-Bell Field flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Missoula Johnson-Bell Field flights.
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From Illinois to Missoula Johnson-Bell Field
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One-way flight from Illinois to Missoula Johnson-Bell Field
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Highest demand for flights based on searches. 16% potential increase in price ($88 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Price to beat on a round-trip flight from Illinois to Missoula Johnson-Bell Field.
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Price to beat on a one-way flight from Illinois to Missoula Johnson-Bell Field.
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Find flight deals from Illinois to Missoula

Cheapest flights from Illinois to Missoula
Explore the most affordable flight options available from Illinois to Missoula. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This American Airlines deal was found by Cheapflights users on 4/30. 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.
Wed 6/118:25 pmORD - MSO
Nonstop3h 59mAmerican Airlines
Tue 6/175:38 amMSO - ORD
Nonstop3h 29mAmerican Airlines
Deal found 4/30$235
This Delta deal was found by Cheapflights users on 4/30. 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.
Tue 6/107:20 pmORD - MSO
1 stop6h 05mDelta
Tue 6/175:54 amMSO - ORD
1 stop5h 09mDelta
Deal found 4/30$239
This Delta deal was found by Cheapflights users on 4/30. 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.
Tue 6/109:21 amMDW - MSO
1 stop6h 11mDelta
Tue 6/175:54 amMSO - MDW
1 stop6h 12mDelta
Deal found 4/30$239
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Wed 6/119:02 amORD - MSO
Nonstop3h 48mUnited Airlines
Tue 6/175:15 pmMSO - ORD
1 stop6h 10mUnited Airlines
Deal found 4/30$245
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/173:09 pmORD - MSO
1 stop10h 10mAlaska Airlines
Mon 6/236:36 pmMSO - ORD
1 stop10h 04mAlaska Airlines
Deal found 4/30$247
This Delta deal was found by Cheapflights users on 4/30. 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.
Mon 6/26:05 pmSTL - MSO
1 stop6h 42mDelta
Mon 6/96:24 pmMSO - STL
1 stop5h 19mDelta
Deal found 4/30$271
This Hawaiian Airlines deal was found by Cheapflights users on 4/30. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/137:00 amORD - MSO
1 stop7h 36mHawaiian Airlines
Tue 6/174:13 pmMSO - ORD
1 stop6h 46mHawaiian Airlines
Deal found 4/30$304
This American Airlines deal was found by Cheapflights users on 4/30. 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 8/46:00 amSTL - MSO
1 stop7h 23mAmerican Airlines
Thu 8/71:51 pmMSO - STL
1 stop8h 12mAmerican Airlines
Deal found 4/30$314
This Hawaiian Airlines deal was found by Cheapflights users on 4/30. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:30 pmSTL - MSO
1 stop6h 57mHawaiian Airlines
Fri 9/194:14 pmMSO - STL
1 stop6h 45mHawaiian Airlines
Deal found 4/30$390
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Tue 6/38:10 amSTL - MSO
3 stops14h 11mUnited Airlines
Tue 6/106:20 amMSO - STL
2 stops8h 10mUnited Airlines
Deal found 4/30$426
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Sun 7/136:48 amPIA - MSO
1 stop7h 09mAmerican Airlines
Sat 7/197:03 amMSO - PIA
1 stop7h 38mAmerican Airlines
Deal found 4/30$449
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/246:36 pmSPI - MSO
1 stop5h 53mAmerican Airlines
Tue 7/295:05 amMSO - SPI
1 stop6h 39mAmerican Airlines
Deal found 4/29$451

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Missoula 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 May 1, 2025.
Use the filters below to find and compare flights from Illinois to Missoula that are best for you.

Fly from

Illinois

Fly to

Missoula

Route

Depart

Return

Price

ChicagoMissoula

ORD - MSO

ORDMSO

Chicago O'Hare Intl

Wed 6/11

8:25 pm-11:24 pm

Nonstop3h 59m

Missoula Johnson-Bell Field

Tue 6/17

5:38 am-10:07 am

Nonstop3h 29m

$235

ChicagoMissoula

ORD - MSO

ORDMSO

Chicago O'Hare Intl

Tue 6/10

7:40 am-12:28 pm

1 stop5h 48m

Missoula Johnson-Bell Field

Tue 6/17

1:08 pm-10:09 pm

1 stop8h 01m

$239

ChicagoMissoula

MDW - MSO

MDWMSO

Chicago Midway

Tue 6/10

9:21 am-2:32 pm

1 stop6h 11m

Missoula Johnson-Bell Field

Tue 6/17

5:54 am-1:06 pm

1 stop6h 12m

$239

ChicagoMissoula

ORD - MSO

ORDMSO

Chicago O'Hare Intl

Wed 6/11

9:02 am-11:50 am

Nonstop3h 48m

Missoula Johnson-Bell Field

Tue 6/17

5:15 pm-12:25 am

1 stop6h 10m

$245

ChicagoMissoula

ORD - MSO

ORDMSO

Chicago O'Hare Intl

Tue 6/17

3:09 pm-12:19 am

1 stop10h 10m

Missoula Johnson-Bell Field

Mon 6/23

6:36 pm-5:40 am

1 stop10h 04m

$247

St. LouisMissoula

STL - MSO

STLMSO

Lambert-St Louis

Mon 6/2

6:05 pm-11:47 pm

1 stop6h 42m

Missoula Johnson-Bell Field

Mon 6/9

6:24 pm-12:43 am

1 stop5h 19m

$271

ChicagoMissoula

ORD - MSO

ORDMSO

Chicago O'Hare Intl

Fri 6/13

7:00 am-1:36 pm

1 stop7h 36m

Missoula Johnson-Bell Field

Tue 6/17

4:13 pm-11:59 pm

1 stop6h 46m

$304

St. LouisMissoula

STL - MSO

STLMSO

Lambert-St Louis

Tue 6/3

8:10 am-9:21 pm

3 stops14h 11m

Missoula Johnson-Bell Field

Tue 6/10

6:20 am-3:30 pm

2 stops8h 10m

$426

PeoriaMissoula

PIA - MSO

PIAMSO

Greater Peoria

Sun 7/13

6:48 am-12:57 pm

1 stop7h 09m

Missoula Johnson-Bell Field

Sat 7/19

7:03 am-3:41 pm

1 stop7h 38m

$449

SpringfieldMissoula

SPI - MSO

SPIMSO

Springfield Capital

Thu 7/24

6:36 pm-11:29 pm

1 stop5h 53m

Missoula Johnson-Bell Field

Tue 7/29

5:05 am-12:44 pm

1 stop6h 39m

$451

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 25 results
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Best time to book a flight from Illinois to Missoula

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

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

Currently, October is the cheapest month in which you can book a flight from Illinois to Missoula (average of $365). Flying from Illinois to Missoula in March is currently the most expensive (average of $506). 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 IL to MSO?

Find hourly flight availability from Illinois to Missoula. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

When flying from Illinois to Missoula, 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 Missoula by month

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

In terms of precipitation, rainfall in Missoula ranges from 0.7 - 2.1 inches per month. June is typically the wettest month, when rainfall can reach 2.1 in. February is typically the driest time to visit Missoula when rainfall is around 0.7 in.

Temperature in Missoula by month

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

If weather is an important factor for your trip to Missoula, 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 68.0 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 24.8 F).

Reviews of airlines servicing Missoula

Get insights into the airlines that provide service to Missoula. 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 Missoula. Reviews last updated May 1, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta and Hawaiian Airlines from Illinois to Missoula by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,972 reviews

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,409 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.9

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Missoula. 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 into for flights to Missoula from Illinois?

    Missoula Johnson-Bell Field (MSO) is the airport you will fly into if you book a flight from Illinois to Missoula. It is only a 5.5 mi journey from Johnson-Bell Field (MSO) to Missoula’s city center.

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

    $120 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Frontier and Alaska Airlines, with prices starting from $129 and $135, respectively.

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

    The most popular flight routes from Illinois to Missoula are Chicago O'Hare Intl - Missoula Johnson-Bell Field, Lambert-St Louis - Missoula Johnson-Bell Field and Chicago Midway - Missoula Johnson-Bell Field.

  • What are the cheapest flights from Illinois to Missoula?

    The cheapest flight price from Illinois to Missoula is $161. On average you can expect to pay $235. The most popular route, (Chicago O'Hare Intl - Missoula Johnson-Bell Field), can usually be booked for $235.

  • Can I find deals for flights from Illinois to Missoula that include hotel bookings?

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Illinois to Missoula (average of $365). Flying from Illinois to Missoula in March is currently the most expensive (average of $506). 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 Illinois to Missoula

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

Discover the top 4 airlines that operate flights from Illinois to Missoula. 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$229Average$505FlexibilityNo cancel feeOn-time71%
DeltaCheapest$248Average$313FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$267Average$422FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$272Average$490FlexibilityNo cancel feeOn-time69%

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