$134 Cheap Flights from Missoula (MSO) to Chicago (ORD)

View $134 flight on Thu, Feb 12, 2026Opens in a new window

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

Cheap Flights from Missoula to Chicago (MSO-ORD)

Prices were available within the past 7 days and start at $134 for one-way flights and $249 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Jun 11 - Mon, Jun 15
MSO
Missoula
ORD
Chicago
$249 Roundtrip, found 2 days ago
$249
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jun 11 from Missoula to Chicago, returning Mon, Jun 15, priced at $249 found 2 days ago
United
Wed, Jun 24 - Tue, Jun 30
MSO
Missoula
ORD
Chicago
$259 Roundtrip, found 1 hour ago
$259
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Jun 24 from Missoula to Chicago, returning Tue, Jun 30, priced at $259 found 1 hour ago
Delta
Wed, Mar 18 - Sun, Apr 5
MSO
Missoula
ORD
Chicago
$261 Roundtrip, found 2 days ago
$261
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Mar 18 from Missoula to Chicago, returning Sun, Apr 5, priced at $261 found 2 days ago
Hawaiian Airlines
Wed, Feb 18 - Wed, Feb 18
MSO
Missoula
ORD
Chicago
$263 Roundtrip, found 19 hours ago
$263
Roundtrip
found 19 hours ago
Select Hawaiian Airlines flight, departing Wed, Feb 18 from Missoula to Chicago, returning Wed, Feb 18, priced at $263 found 19 hours ago
Alaska Airlines
Wed, Jan 21 - Wed, Jan 21
MSO
Missoula
ORD
Chicago
$263 Roundtrip, found 2 days ago
$263
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Jan 21 from Missoula to Chicago, returning Wed, Jan 21, priced at $263 found 2 days ago
Delta
Wed, Mar 18 - Wed, Mar 25
MSO
Missoula
ORD
Chicago
$265 Roundtrip, found 1 day ago
$265
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Mar 18 from Missoula to Chicago, returning Wed, Mar 25, priced at $265 found 1 day ago
Bargain Flight
Thu, Feb 12 - Mon, Feb 16
MSO
Missoula
ORD
Chicago
$266 Roundtrip, found 2 hours ago
$266
Roundtrip
found 2 hours ago
Select Bargain Flight flight, departing Thu, Feb 12 from Missoula to Chicago, returning Mon, Feb 16, priced at $266 found 2 hours ago
Bargain Flight
Mon, Jan 26 - Mon, Feb 2
MSO
Missoula
ORD
Chicago
$267 Roundtrip, found 2 days ago
$267
Roundtrip
found 2 days ago
Select Bargain Flight flight, departing Mon, Jan 26 from Missoula to Chicago, returning Mon, Feb 2, priced at $267 found 2 days ago
Alaska Airlines
Thu, Feb 12 - Mon, Feb 16
MSO
Missoula
ORD
Chicago
$269 Roundtrip, found 2 hours ago
$269
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Thu, Feb 12 from Missoula to Chicago, returning Mon, Feb 16, priced at $269 found 2 hours ago
Delta
Mon, Jan 12 - Sun, Feb 1
MSO
Missoula
ORD
Chicago
$274 Roundtrip, found 6 days ago
$274
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Jan 12 from Missoula to Chicago, returning Sun, Feb 1, priced at $274 found 6 days ago

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

September is typically the cheapest month to fly

From $201 - $422 per traveler.

Alternative airports near Chicago

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

Select flight to Midway Intl. MDW. Closest option available. Average driving time to city center is 16 minutes. Flights from $924
MDW
Midway Intl.
Closest
Average driving time to city center16 min
Flights from $924
Flights from Missoula (MSO) to Chicago (ORD)
Origin airport
Missoula Intl.
Destination airport
O'Hare Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$249
Distance
1328 mi
Average flight time
3 hours 32 mins

Missoula to Chicago Flights

The cheapest times to fly from Missoula to Chicago

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 Missoula to Chicago are during the month of June. You can find some of the cheapest flights from Missoula to Chicago with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Missoula to Chicago

Sunday is one of the best days to book for cheap flights from Missoula to Chicago: 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 Missoula to Chicago

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 Missoula to Chicago in 2026. You can also book with separate airlines for your outbound and return journeys, from $134 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 Missoula to Chicago 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 Missoula to Chicago 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 Missoula Intl. Airport (MSO) to O'Hare Intl. Airport (ORD) cost?
Secure a cheap one-way flight from $134 or cheap return flight from $249 from Missoula Intl. Airport (MSO) to O'Hare Intl. Airport (ORD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Missoula Intl. Airport (MSO) to O'Hare Intl. Airport (ORD)?
June is the cheapest month to fly from MSO to ORD. Traveling during an off-peak travel window is often the key to better flight prices.
What is the cheapest airline that flies from Missoula Intl. Airport (MSO) to O'Hare Intl. Airport (ORD)?
To find the cheapest airline flying from MSO to ORD, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Missoula Intl. Airport (MSO) to O'Hare Intl. Airport (ORD)?
There are no daily direct flights available from Missoula Intl. Airport (MSO) to O'Hare Intl. Airport (ORD). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from MSO to ORD?
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 public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Missoula Intl. Airport (MSO) to O'Hare Intl. Airport (ORD)?
Select a flight from Missoula Intl. Airport (MSO) to O'Hare Intl. Airport (ORD) that takes off before 3 PM to reduce the likelihood of delays. Departures after this time have a 22% higher chance of being canceled, on average.**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 Missoula Intl. Airport (MSO) to O'Hare Intl. Airport (ORD) last-minute?
Holding off until just before your trip to book a ticket from MSO to ORD generally means paying more. While you may come across some last-minute offers, they're not always guaranteed. Be flexible with your itinerary to maximize your chances of landing a bargain.
Is it cheaper to book a MSO to ORD flight and hotel package?
Securing a MSO to ORD flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our extensive range of accommodations and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Missoula Intl. Airport (MSO) to O'Hare Intl. Airport (ORD)?
Generally, it's possible to cancel or reschedule your MSO to ORD flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.