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Cheap flights from Illinois to Missoula from $115

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Missoula departing on 2/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to Missoula

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:10 am - 10:46 am
ORD
-
MSO
27h 36m1 stop
Multiple Airlines Logo
11:34 am - 2:54 pm
MSO
-
ORD
26h 20m1 stop
$221Multiple Airlines
Wed, Feb 18 - Thu, Feb 26
Multiple Airlines Logo
8:10 am - 10:46 am
ORD
-
MSO
27h 36m1 stop
Multiple Airlines Logo
4:05 pm - 6:08 pm
MSO
-
ORD
25h 03m2 stops
$236Multiple Airlines
Wed, Feb 18 - Mon, Feb 23
United Airlines Logo
8:55 am - 11:34 am
ORD
-
MSO
3h 39mnonstop
United Airlines Logo
5:32 pm - 11:57 pm
MSO
-
ORD
5h 25m1 stop
$259United Airlines
Mon, Jun 1 - Tue, Jun 9
Delta Logo
7:20 am - 12:17 pm
ORD
-
MSO
5h 57m1 stop
Delta Logo
5:04 am - 12:23 pm
MSO
-
ORD
6h 19m1 stop
$265Delta
Thu, Mar 12 - Wed, Mar 18
Alaska Airlines Logo
5:29 pm - 11:59 pm
ORD
-
MSO
7h 30m1 stop
Alaska Airlines Logo
6:23 am - 2:11 pm
MSO
-
ORD
6h 48m1 stop
$268Alaska Airlines
Thu, Feb 19 - Fri, Feb 27
Delta Logo
12:29 pm - 8:01 pm
ORD
-
MSO
8h 32m1 stop
Delta Logo
1:16 pm - 9:52 pm
MSO
-
ORD
7h 36m1 stop
$269Delta
Sat, Feb 21 - Tue, Feb 24
United Airlines Logo
10:47 am - 9:51 pm
MLI
-
MSO
12h 04m2 stops
United Airlines Logo
2:37 pm - 8:34 pm
MSO
-
MLI
4h 57m1 stop
$294United Airlines
Sat, Feb 7 - Wed, Feb 11
American Airlines Logo
7:32 am - 12:50 pm
MLI
-
MSO
6h 18m1 stop
American Airlines Logo
1:21 pm - 10:26 pm
MSO
-
MLI
8h 05m1 stop
$344American Airlines
Sat, Feb 7 - Wed, Feb 11
Alaska Airlines Logo
6:19 pm - 3:31 pm
STL
-
MSO
22h 12m1 stop
Alaska Airlines Logo
6:23 am - 1:54 pm
MSO
-
STL
6h 31m1 stop
$400Alaska Airlines
Sat, Jan 17 - Wed, Jan 21
American Airlines Logo
6:21 am - 12:25 pm
MLI
-
MSO
7h 04m1 stop
American Airlines Logo
1:05 pm - 9:21 pm
MSO
-
MLI
7h 16m1 stop
$453American Airlines
Sat, May 9 - Sat, May 16

United Airlines flights from Illinois to Missoula

Our best United Airlines deals on Illinois to Missoula flight tickets
United Airlines
Jun 1
ORD8:55 amChicago O'Hare Intl
3h 39m
MSO11:34 amMissoula Johnson-Bell Field
Jun 9
MSO5:32 pmMissoula Johnson-Bell Field
5h 25m
1 stop
ORD11:57 pmChicago O'Hare Intl
$259
Find similar
United Airlines
Feb 7
MLI10:47 amMoline Quad-City
12h 04m
2 stops
MSO9:51 pmMissoula Johnson-Bell Field
Feb 11
MSO2:37 pmMissoula Johnson-Bell Field
4h 57m
1 stop
MLI8:34 pmMoline Quad-City
$294
Find similar
United Airlines
Feb 7
MLI10:47 amMoline Quad-City
12h 04m
2 stops
MSO9:51 pmMissoula Johnson-Bell Field
Feb 11
MSO6:00 amMissoula Johnson-Bell Field
9h 54m
2 stops
MLI4:54 pmMoline Quad-City
$299
Find similar

Alaska Airlines flights from Illinois to Missoula

Our best Alaska Airlines deals on Illinois to Missoula flight tickets
Alaska Airlines
Feb 19
ORD5:29 pmChicago O'Hare Intl
7h 30m
1 stop
MSO11:59 pmMissoula Johnson-Bell Field
Feb 27
MSO6:23 amMissoula Johnson-Bell Field
6h 48m
1 stop
ORD2:11 pmChicago O'Hare Intl
$268
Find similar
Alaska Airlines
Feb 1
ORD8:00 amChicago O'Hare Intl
8h 31m
1 stop
MSO3:31 pmMissoula Johnson-Bell Field
Feb 4
MSO4:20 pmMissoula Johnson-Bell Field
6h 30m
1 stop
ORD11:50 pmChicago O'Hare Intl
$302
Find similar
Alaska Airlines
Feb 28
ORD5:29 pmChicago O'Hare Intl
7h 30m
1 stop
MSO11:59 pmMissoula Johnson-Bell Field
Mar 7
MSO1:01 pmMissoula Johnson-Bell Field
23h 04m
2 stops
ORD1:05 pmChicago O'Hare Intl
$311
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 28, 2025.
Use the filters below to find and compare flights from Illinois to Missoula that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoMissoula

ORD - MSO

ORDMSO

Chicago O'Hare Intl

Wed 2/18

8:10 am-10:46 am

1 stop27h 36m

Missoula Johnson-Bell Field

Thu 2/26

11:34 am-2:54 pm

1 stop26h 20m

$221

ChicagoMissoula

ORD - MSO

ORDMSO

Chicago O'Hare Intl

Wed 2/18

8:10 am-10:46 am

1 stop27h 36m

Missoula Johnson-Bell Field

Mon 2/23

4:05 pm-6:08 pm

2 stops25h 03m

$236

ChicagoMissoula

ORD - MSO

ORDMSO

Chicago O'Hare Intl

Mon 6/1

8:55 am-11:34 am

Nonstop3h 39m

Missoula Johnson-Bell Field

Tue 6/9

5:32 pm-11:57 pm

1 stop5h 25m

$259

ChicagoMissoula

ORD - MSO

ORDMSO

Chicago O'Hare Intl

Thu 3/12

7:20 am-12:17 pm

1 stop5h 57m

Missoula Johnson-Bell Field

Wed 3/18

5:04 am-12:23 pm

1 stop6h 19m

$265

ChicagoMissoula

ORD - MSO

ORDMSO

Chicago O'Hare Intl

Thu 2/19

5:29 pm-11:59 pm

1 stop7h 30m

Missoula Johnson-Bell Field

Fri 2/27

6:23 am-2:11 pm

1 stop6h 48m

$268

ChicagoMissoula

ORD - MSO

ORDMSO

Chicago O'Hare Intl

Sat 2/21

12:29 pm-8:01 pm

1 stop8h 32m

Missoula Johnson-Bell Field

Tue 2/24

1:16 pm-9:52 pm

1 stop7h 36m

$269

MolineMissoula

MLI - MSO

MLIMSO

Moline Quad-City

Sat 2/7

10:47 am-9:51 pm

2 stops12h 04m

Missoula Johnson-Bell Field

Wed 2/11

2:37 pm-8:34 pm

1 stop4h 57m

$294

MolineMissoula

MLI - MSO

MLIMSO

Moline Quad-City

Sat 2/7

7:32 am-12:50 pm

1 stop6h 18m

Missoula Johnson-Bell Field

Wed 2/11

1:21 pm-10:26 pm

1 stop8h 05m

$344

St. LouisMissoula

STL - MSO

STLMSO

Lambert-St Louis

Sat 1/17

6:19 pm-3:31 pm

1 stop22h 12m

Missoula Johnson-Bell Field

Wed 1/21

6:23 am-1:54 pm

1 stop6h 31m

$400

MolineMissoula

MLI - MSO

MLIMSO

Moline Quad-City

Sat 5/9

6:21 am-12:25 pm

1 stop7h 04m

Missoula Johnson-Bell Field

Sat 5/16

1:05 pm-9:21 pm

1 stop7h 16m

$453

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Missoula from

How to get the cheapest flight ticket from Illinois to Missoula

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Missoula?

The month of November is, on average, the cheapest month to fly to Missoula from Illinois, with most prices found around $315. If you are unable to visit Missoula during the month of November, then departing from Illinois during the month August is also very affordable. Most momondo users find prices during this month for around $329.

What is the cheapest day to depart on your flight to Missoula?

On average, the least expensive day to fly to Missoula from Illinois is on a Monday. momondo users have found tickets for Monday departures for as low as $329. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Illinois because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $442.

What is the cheapest time of day to depart on your flight to Missoula?

The cheapest time of day to fly to Missoula is in the evening when flights can be purchased for as low as $290. Flights in the morning are often more expensive with an average ticket price of $419.

What is the cheapest Illinois to Missoula Johnson-Bell Field flight route?

Fly from Chicago O'Hare Intl to Missoula Johnson-Bell Field for the best Illinois - Missoula Johnson-Bell Field flight prices

How far in advance should I book a flight to Missoula?

You are more likely to see cheaper flights to Missoula from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Missoula for around $419 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Missoula from Illinois for as low as $283 on momondo.

What cabin class options are available on Illinois to Missoula Johnson-Bell Field flights?

There are 4 cabin classes available to choose from on Illinois to Missoula Johnson-Bell Field flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to Missoula flights?

No. A direct flight is the cheapest option for a flight between Illinois to Missoula.

Cheap Illinois to Missoula flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Missoula

Best Price Found

$411

Fastest flight time

3h 39m

Direct flights

Every day

Airports in Missoula

1 airport
The best flight deal from Illinois to Missoula found on momondo in the last 72 hours is $411
The fastest flight from Illinois to Missoula takes 3h 39m
Direct flights go from Illinois to Missoula every day.
There is 1 airport in Missoula. From Illinois there are direct flights to Missoula Johnson-Bell Field (MSO).
Search flight deals

  • When did momondo last update prices for flights from Illinois to Missoula Johnson-Bell Field Airport?

    Prices for flights from Illinois to Missoula Johnson-Bell Field Airport are updated daily.

  • How many operators does momondo search for flights from Illinois to Missoula Johnson-Bell Field Airport?

  • How old do you have to be to fly from Illinois to Missoula Johnson-Bell Field Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Missoula Johnson-Bell Field Airport.

  • What documentation or ID do you need to fly to Missoula Johnson-Bell Field Airport?

    The required travel and health documents for your Missoula Johnson-Bell Field Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Missoula Johnson-Bell Field Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Illinois to Missoula?

Best airlines flying from Illinois to Missoula

Compare and see reviews for airlines that fly from Illinois to Missoula with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $229Free CancellationRating
7.2
11,072 reviews
Search American Airlines flights
DeltaPriceFrom $248Free CancellationRating
7.9
8,019 reviews
Search Delta flights
Alaska AirlinesPriceFrom $270Free CancellationRating
8.0
11,551 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $271Free CancellationRating
7.4
9,113 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Missoula?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Missoula from Illinois.

Can I find flights from Illinois to Missoula with flexible booking policies on momondo?

All flight searches from Illinois to Missoula on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Illinois to Missoula?

Once all potential Illinois to Missoula flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Illinois to Missoula right now. Can momondo alert me if prices change?

Price alerts on flights to Missoula from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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