$355 Cheap Flights from Oslo (OSL) to Missoula (MSO)

View $355 flight on Thu, Apr 9, 2026Opens in a new window

Popular airlines from Gardermoen Airport (OSL) to Missoula Intl. Airport (MSO)

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Cheap Flights from Oslo to Missoula (OSL-MSO)

Prices were available within the past 7 days and start at $355 for one-way flights and $832 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Tue, Nov 25 - Tue, Dec 2
OSL
Oslo
MSO
Missoula
$832 Roundtrip, found 2 days ago
$832
Roundtrip
found 2 days ago
Select British Airways flight, departing Tue, Nov 25 from Oslo to Missoula, returning Tue, Dec 2, priced at $832 found 2 days ago
Icelandair
Fri, Oct 24 - Tue, Oct 28
OSL
Oslo
MSO
Missoula
$868 Roundtrip, found 5 days ago
$868
Roundtrip
found 5 days ago
Select Icelandair flight, departing Fri, Oct 24 from Oslo to Missoula, returning Tue, Oct 28, priced at $868 found 5 days ago
British Airways
Tue, Nov 25 - Tue, Dec 2
OSL
Oslo
MSO
Missoula
$882 Roundtrip, found 2 days ago
$882
Roundtrip
found 2 days ago
Select British Airways flight, departing Tue, Nov 25 from Oslo to Missoula, returning Tue, Dec 2, priced at $882 found 2 days ago
British Airways
Tue, Nov 25 - Tue, Dec 2
OSL
Oslo
MSO
Missoula
$885 Roundtrip, found 2 days ago
$885
Roundtrip
found 2 days ago
Select British Airways flight, departing Tue, Nov 25 from Oslo to Missoula, returning Tue, Dec 2, priced at $885 found 2 days ago
British Airways
Tue, Nov 25 - Tue, Dec 2
OSL
Oslo
MSO
Missoula
$890 Roundtrip, found 2 days ago
$890
Roundtrip
found 2 days ago
Select British Airways flight, departing Tue, Nov 25 from Oslo to Missoula, returning Tue, Dec 2, priced at $890 found 2 days ago
British Airways
Tue, Nov 25 - Tue, Dec 2
OSL
Oslo
MSO
Missoula
$891 Roundtrip, found 2 days ago
$891
Roundtrip
found 2 days ago
Select British Airways flight, departing Tue, Nov 25 from Oslo to Missoula, returning Tue, Dec 2, priced at $891 found 2 days ago
British Airways
Tue, Nov 25 - Tue, Dec 2
OSL
Oslo
MSO
Missoula
$897 Roundtrip, found 2 days ago
$897
Roundtrip
found 2 days ago
Select British Airways flight, departing Tue, Nov 25 from Oslo to Missoula, returning Tue, Dec 2, priced at $897 found 2 days ago
Icelandair
Fri, Oct 24 - Tue, Oct 28
OSL
Oslo
MSO
Missoula
$906 Roundtrip, found 5 days ago
$906
Roundtrip
found 5 days ago
Select Icelandair flight, departing Fri, Oct 24 from Oslo to Missoula, returning Tue, Oct 28, priced at $906 found 5 days ago
British Airways
Tue, Nov 25 - Tue, Dec 2
OSL
Oslo
MSO
Missoula
$935 Roundtrip, found 2 days ago
$935
Roundtrip
found 2 days ago
Select British Airways flight, departing Tue, Nov 25 from Oslo to Missoula, returning Tue, Dec 2, priced at $935 found 2 days ago
Finnair
Tue, Nov 25 - Tue, Dec 2
OSL
Oslo
MSO
Missoula
$954 Roundtrip, found 2 days ago
$954
Roundtrip
found 2 days ago
Select Finnair flight, departing Tue, Nov 25 from Oslo to Missoula, returning Tue, Dec 2, priced at $954 found 2 days ago

Frequently asked questions

How much does a flight from Gardermoen Airport (OSL) to Missoula Intl. Airport (MSO) cost?
Snag a cheap one-way flight from $355 or cheap return flight from $832 from Gardermoen Airport (OSL) to Missoula Intl. Airport (MSO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Gardermoen Airport (OSL) to Missoula Intl. Airport (MSO)?
November is the most affordable month to fly from OSL to MSO. Timing your trip outside of the busy season is often the key to finding better deals on flights.
What is the cheapest airline that flies from Gardermoen Airport (OSL) to Missoula Intl. Airport (MSO)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest OSL to MSO flight.
How many flights per day from Gardermoen Airport (OSL) to Missoula Intl. Airport (MSO)?
There are no daily nonstop flights from Gardermoen Airport (OSL) to Missoula Intl. Airport (MSO). But you can choose flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from OSL to MSO?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can change depending on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Gardermoen Airport (OSL) to Missoula Intl. Airport (MSO)?
To touch down at Missoula Intl. Airport (MSO) on time, select a flight that leaves from Gardermoen Airport (OSL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Gardermoen Airport (OSL) to Missoula Intl. Airport (MSO) last-minute?
Booking your flight from OSL to MSO right before your trip is usually more expensive. But if you're flexible with your itinerary, you could grab a cheap last-minute fare.
Is it cheaper to book an OSL to MSO flight and hotel package?
Compared with arranging flights and hotels separately, booking an OSL to MSO flight and hotel package with Expedia could result in significant savings. What's more, having everything in one easy place will take the hassle out of planning your trip. Just secure your flights and choose from our extensive range of hotels, then personalize your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from Gardermoen Airport (OSL) to Missoula Intl. Airport (MSO)?
Typically, you can cancel or reschedule your OSL to MSO flight. However, additional charges may apply, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you need more information, head to our Customer Service portal.

Travel information

Origin airport
Gardermoen
Destination airport
Missoula Intl.
Roundtrip price
$832
Distance
4422 mi

Book with confidence

Oslo to Missoula Flights

The cheapest times to fly from Oslo 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 Oslo to Missoula are during the month of November. You can find some of the cheapest flights from Oslo to Missoula with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Oslo to Missoula

Sunday is one of the best days to book for cheap flights from Oslo 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 Oslo 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 Oslo to Missoula in 2025. You can also book with separate airlines for your outbound and return journeys, from $355 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 Oslo 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 Oslo 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.

 

Oslo to Missoula Flights

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*Available to One Key members.