$105 Cheap Flights from Chicago (ORD) to Missoula (MSO)

View $105 flight on Wed, Sep 17, 2025Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Missoula Intl. Airport (MSO)

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Cheap Flights from Chicago to Missoula (ORD-MSO)

Prices were available within the past 7 days and start at $105 for one-way flights and $191 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Sep 8 - Tue, Sep 9
ORD
Chicago
MSO
Missoula
$191 Roundtrip, found 8 hours ago
$191
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Mon, Sep 8 from Chicago to Missoula, returning Tue, Sep 9, priced at $191 found 8 hours ago
United
Sat, Aug 16 - Sat, Aug 23
ORD
Chicago
MSO
Missoula
$201 Roundtrip, found 14 hours ago
$201
Roundtrip
found 14 hours ago
Select United flight, departing Sat, Aug 16 from Chicago to Missoula, returning Sat, Aug 23, priced at $201 found 14 hours ago
Bargain Flight
Wed, Sep 10 - Wed, Sep 24
ORD
Chicago
MSO
Missoula
$209 Roundtrip, found 2 days ago
$209
Roundtrip
found 2 days ago
Select Bargain Flight flight, departing Wed, Sep 10 from Chicago to Missoula, returning Wed, Sep 24, priced at $209 found 2 days ago
Hawaiian Airlines
Tue, Sep 16 - Tue, Sep 23
ORD
Chicago
MSO
Missoula
$210 Roundtrip, found 8 hours ago
$210
Roundtrip
found 8 hours ago
Select Hawaiian Airlines flight, departing Tue, Sep 16 from Chicago to Missoula, returning Tue, Sep 23, priced at $210 found 8 hours ago
United
Tue, Aug 12 - Sat, Aug 16
ORD
Chicago
MSO
Missoula
$212 Roundtrip, found 1 day ago
$212
Roundtrip
found 1 day ago
Select United flight, departing Tue, Aug 12 from Chicago to Missoula, returning Sat, Aug 16, priced at $212 found 1 day ago
United
Fri, Aug 15 - Sat, Aug 23
ORD
Chicago
MSO
Missoula
$213 Roundtrip, found 1 day ago
$213
Roundtrip
found 1 day ago
Select United flight, departing Fri, Aug 15 from Chicago to Missoula, returning Sat, Aug 23, priced at $213 found 1 day ago
United
Sat, Aug 16 - Sat, Aug 23
ORD
Chicago
MSO
Missoula
$217 Roundtrip, found 14 hours ago
$217
Roundtrip
found 14 hours ago
Select United flight, departing Sat, Aug 16 from Chicago to Missoula, returning Sat, Aug 23, priced at $217 found 14 hours ago
Alaska Airlines
Sat, Aug 16 - Sat, Aug 23
ORD
Chicago
MSO
Missoula
$219 Roundtrip, found 14 hours ago
$219
Roundtrip
found 14 hours ago
Select Alaska Airlines flight, departing Sat, Aug 16 from Chicago to Missoula, returning Sat, Aug 23, priced at $219 found 14 hours ago
United
Sat, Aug 23 - Sat, Aug 30
ORD
Chicago
MSO
Missoula
$220 Roundtrip, found 14 hours ago
$220
Roundtrip
found 14 hours ago
Select United flight, departing Sat, Aug 23 from Chicago to Missoula, returning Sat, Aug 30, priced at $220 found 14 hours ago
United
Tue, Aug 12 - Sat, Aug 16
ORD
Chicago
MSO
Missoula
$222 Roundtrip, found 1 day ago
$222
Roundtrip
found 1 day ago
Select United flight, departing Tue, Aug 12 from Chicago to Missoula, returning Sat, Aug 16, priced at $222 found 1 day ago

Find the cheapest month to fly from Chicago (ORD) to Missoula (MSO)

October is typically the cheapest month to fly

From $178 - $413 per traveler.

Graph displaying average flight prices per month

Alternative airports near Missoula

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Missoula Intl. MSO. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $314
MSO
Missoula Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $314
Flights from Chicago (ORD) to Missoula (MSO)
Origin airport
O'Hare Intl.
Destination airport
Missoula Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, United
Roundtrip price
$191
Distance
1328 mi
Average flight time
2 hours 46 mins

Chicago to Missoula Flights

The cheapest times to fly from Chicago to Missoula

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to Missoula are during the month of September. You can find some of the cheapest flights from Chicago to Missoula with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Missoula

Sunday is one of the best days to book for cheap flights from Chicago to Missoula: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Chicago to Missoula

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to Missoula in 2025. You can also book with separate airlines for your outbound and return journeys, from $105 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to Missoula flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to Missoula airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to Missoula Intl. Airport (MSO) cost?
You can book cheap return fares starting from $191 from O'Hare Intl. Airport (ORD) to Missoula Intl. Airport (MSO). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a American Airlines flight leaving ORD on July 31 2025 and touching down at MSO. The price was last updated on July 12 2025 and has not changed since.
What is the cheapest month to fly from ORD to MSO?
The cheapest flights from ORD to MSO are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from ORD to MSO?
At the moment, the cheapest carrier offering one-way flights from ORD to MSO is American Airlines. You can jet off on this route from $118. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from ORD on September 15 2025. Prices were last updated on July 12 2025 and have not changed since.
How many flights per day from O'Hare Intl. Airport (ORD) to Missoula Intl. Airport (MSO)?
You'll have to catch a flight with a layover when traveling from O'Hare Intl. Airport (ORD) to Missoula Intl. Airport (MSO). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from ORD to MSO?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from ORD to MSO?
United Airlines has the best performance for on-time direct flights from O'Hare Intl. Airport (ORD) to Missoula Intl. Airport (MSO), with an on-time rating of 85%. Use the Expedia App to look up your flight status before you take off and get real-time updates about any changes.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Missoula Intl. Airport (MSO)?
To reach Missoula Intl. Airport (MSO) on time, choose a flight that leaves O'Hare Intl. Airport (ORD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to Missoula Intl. Airport (MSO) last-minute?
Last-minute fares from ORD to MSO are generally more expensive. To secure the best rates, start searching for flights early. That said, if you're flexible with your travel plans, it's possible to find a cheap ticket right before your journey.
Is it cheaper to book an ORD to MSO flight and hotel package?
You can save money by securing an ORD to MSO flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After choosing your preferred accommodations and flights, consider other add-ons like car rentals, tours and activities.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Missoula Intl. Airport (MSO)?
In most cases, you can cancel or reschedule your ORD to MSO flight. However, additional fees may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you need further information, visit our Customer Service portal.

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