$109+ 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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Illinois to Missoula 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 Illinois to Missoula
Keep the following information in mind while searching for Illinois to Missoula flight deals. Data was last updated junio 12, 2025.
Round-trip from | $221 (American Airlines) |
|---|---|
One-way from | $109 (Mytrip) |
Popular in | December |
Cheapest in | October |
Average price | $403 |
Good round-trip deal | $310 or less |
Good one-way deal | $174 or less |
Find flight deals from Illinois to Missoula
Cheapest flights from Illinois to MissoulaExplore 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 junio 12, 2025.
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 junio 12, 2025.
This Mytrip deal was found by Cheapflights users on 6/12. 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.
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 6/12. 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.
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
This Delta deal was found by Cheapflights users on 6/12. 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.
This Hawaiian Airlines deal was found by Cheapflights users on 6/12. 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.
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Frontier deal was found by Cheapflights users on 6/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
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 junio 12, 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
jue. 7/17
3:18 pm-3:30 pm
1 stop25h 12m
Missoula Johnson-Bell Field
lun. 7/21
9:54 pm-2:13 pm
1 stop15h 19m
ChicagoMissoula
ORD - MSO
ORDMSO
Chicago O'Hare Intl
lun. 6/30
6:00 am-3:10 pm
1 stop10h 10m
Missoula Johnson-Bell Field
mié. 7/9
5:12 am-9:36 am
Nonstop3h 24m
ChicagoMissoula
ORD - MSO
ORDMSO
Chicago O'Hare Intl
mar. 7/15
7:20 pm-12:24 am
1 stop6h 04m
Missoula Johnson-Bell Field
mié. 8/6
5:30 am-11:53 am
1 stop5h 23m
ChicagoMissoula
ORD - MSO
ORDMSO
Chicago O'Hare Intl
vie. 7/4
2:35 pm-9:23 pm
1 stop7h 48m
Missoula Johnson-Bell Field
mié. 7/9
2:25 pm-9:10 pm
1 stop5h 45m
ChicagoMissoula
ORD - MSO
ORDMSO
Chicago O'Hare Intl
mar. 8/5
7:00 am-1:36 pm
1 stop7h 36m
Missoula Johnson-Bell Field
vie. 8/15
4:13 pm-11:59 pm
1 stop6h 46m
ChicagoMissoula
MDW - MSO
MDWMSO
Chicago Midway
sáb. 7/19
7:21 pm-11:43 pm
1 stop5h 22m
Missoula Johnson-Bell Field
mié. 8/6
5:54 am-1:06 pm
1 stop6h 12m
ChicagoMissoula
ORD - MSO
ORDMSO
Chicago O'Hare Intl
mié. 9/10
5:45 pm-12:27 am
1 stop7h 42m
Missoula Johnson-Bell Field
jue. 9/18
4:14 pm-11:59 pm
1 stop6h 45m
MolineMissoula
MLI - MSO
MLIMSO
Moline Quad-City
mié. 8/6
6:18 pm-11:29 pm
1 stop6h 11m
Missoula Johnson-Bell Field
mar. 8/12
1:51 pm-9:51 pm
1 stop7h 00m
St. LouisMissoula
STL - MSO
STLMSO
Lambert-St Louis
lun. 8/4
8:01 pm-12:15 pm
1 stop17h 14m
Missoula Johnson-Bell Field
jue. 8/7
6:45 am-8:18 pm
1 stop12h 33m
ChicagoMissoula
ORD - MSO
ORDMSO
Chicago O'Hare Intl
vie. 8/1
5:40 am-11:54 am
1 stop7h 14m
Missoula Johnson-Bell Field
vie. 8/15
12:40 pm-12:10 am
1 stop10h 30m
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.
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 junio 12, 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.
Weekly flight availability from Illinois to Missoula
Explore weekly flight availability from Illinois to Missoula. 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 junio 12, 2025.
The most flights from USIL to MSO 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).
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 junio 12, 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.
Food
Entertainment
Overall
Boarding
Comfort
Crew
Reviews
James,Apr 2025
LAX - SFO
Food
Entertainment
Overall
Boarding
Comfort
Crew
Reviews
James,Apr 2025
LAX - SFO
Food
Entertainment
Overall
Boarding
Comfort
Crew
Reviews
James,Apr 2025
LAX - SFO
Food
Entertainment
Overall
Boarding
Comfort
Crew
Reviews
James,Apr 2025
LAX - SFO
Food
Entertainment
Overall
Boarding
Comfort
Crew
Reviews
James,Apr 2025
LAX - SFO
Food
Entertainment
Overall
Boarding
Comfort
Crew
Reviews
James,Apr 2025
LAX - SFO
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.
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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.
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 junio 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$229 | Average$381 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$248 | Average$298 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$267 | Average$461 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$268 | Average$494 | FlexibilityNo cancel fee | On-time69% |