$222 Cheap Flights from Williston (XWA) to Missoula (MSO)

View $222 flight on Fri, Oct 31, 2025Opens in a new window

Popular airlines from Williston, ND (XWA-Basin Intl.) to Missoula Intl. Airport (MSO)

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Cheap Flights from Williston to Missoula (XWA-MSO)

Prices were available within the past 7 days and start at $222 for one-way flights and $268 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Oct 6 - Mon, Oct 13
XWA
Williston
MSO
Missoula
$268 Roundtrip, found 3 days ago
$268
Roundtrip
found 3 days ago
Select United flight, departing Mon, Oct 6 from Williston to Missoula, returning Mon, Oct 13, priced at $268 found 3 days ago
United
Mon, Nov 10 - Wed, Nov 19
XWA
Williston
MSO
Missoula
$278 Roundtrip, found 4 days ago
$278
Roundtrip
found 4 days ago
Select United flight, departing Mon, Nov 10 from Williston to Missoula, returning Wed, Nov 19, priced at $278 found 4 days ago
United
Tue, Oct 7 - Thu, Oct 23
XWA
Williston
MSO
Missoula
$298 Roundtrip, found 4 days ago
$298
Roundtrip
found 4 days ago
Select United flight, departing Tue, Oct 7 from Williston to Missoula, returning Thu, Oct 23, priced at $298 found 4 days ago
United
Sun, Nov 9 - Sat, Nov 15
XWA
Williston
MSO
Missoula
$327 Roundtrip, found 4 days ago
$327
Roundtrip
found 4 days ago
Select United flight, departing Sun, Nov 9 from Williston to Missoula, returning Sat, Nov 15, priced at $327 found 4 days ago
United
Mon, Oct 6 - Mon, Oct 13
XWA
Williston
MSO
Missoula
$328 Roundtrip, found 3 days ago
$328
Roundtrip
found 3 days ago
Select United flight, departing Mon, Oct 6 from Williston to Missoula, returning Mon, Oct 13, priced at $328 found 3 days ago
United
Sat, Oct 25 - Sat, Nov 8
XWA
Williston
MSO
Missoula
$339 Roundtrip, found 4 days ago
$339
Roundtrip
found 4 days ago
Select United flight, departing Sat, Oct 25 from Williston to Missoula, returning Sat, Nov 8, priced at $339 found 4 days ago
United
Sun, Nov 9 - Wed, Nov 19
XWA
Williston
MSO
Missoula
$361 Roundtrip, found 4 days ago
$361
Roundtrip
found 4 days ago
Select United flight, departing Sun, Nov 9 from Williston to Missoula, returning Wed, Nov 19, priced at $361 found 4 days ago
United
Tue, Oct 14 - Fri, Oct 31
XWA
Williston
MSO
Missoula
$374 Roundtrip, found 4 days ago
$374
Roundtrip
found 4 days ago
Select United flight, departing Tue, Oct 14 from Williston to Missoula, returning Fri, Oct 31, priced at $374 found 4 days ago
United
Sun, Oct 12 - Tue, Oct 21
XWA
Williston
MSO
Missoula
$381 Roundtrip, found 5 days ago
$381
Roundtrip
found 5 days ago
Select United flight, departing Sun, Oct 12 from Williston to Missoula, returning Tue, Oct 21, priced at $381 found 5 days ago
Delta
Wed, Jan 14 - Tue, Jan 20
XWA
Williston
MSO
Missoula
$477 Roundtrip, found 6 days ago
$477
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Jan 14 from Williston to Missoula, returning Tue, Jan 20, priced at $477 found 6 days ago

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 $339
MSO
Missoula Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $339

Frequently asked questions

How much does a flight from Basin Intl. Airport (XWA) to Missoula Intl. Airport (MSO) cost?
Secure a cheap one-way flight from $222 or cheap return flight from $268 from Basin Intl. Airport (XWA) 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 Basin Intl. Airport (XWA) to Missoula Intl. Airport (MSO)?
October is the cheapest month to fly from XWA to MSO. Avoiding peak travel times is often the key to better flight prices.
What is the cheapest airline that flies from Basin Intl. Airport (XWA) to Missoula Intl. Airport (MSO)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll take you from XWA to MSO. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Basin Intl. Airport (XWA) to Missoula Intl. Airport (MSO)?
Direct flights from Basin Intl. Airport (XWA) to Missoula Intl. Airport (MSO) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from XWA 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 is the best time to fly from Basin Intl. Airport (XWA) to Missoula Intl. Airport (MSO)?
To touch down at Missoula Intl. Airport (MSO) on schedule, select a flight that leaves Basin Intl. Airport (XWA) 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 Basin Intl. Airport (XWA) to Missoula Intl. Airport (MSO) last-minute?
Waiting until just before your trip to book a ticket from XWA to MSO generally means paying more. While you may find some last-minute discounts, they aren't always guaranteed. Be flexible with your travel plans to boost your chances of landing a bargain.
Is it cheaper to book a XWA to MSO flight and hotel package?
Booking a XWA to MSO flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our extensive range of hotels and then add flights, car rentals 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 Basin Intl. Airport (XWA) to Missoula Intl. Airport (MSO)?
Typically, you can cancel or modify your XWA to MSO flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like further information, visit our Customer Service portal.

Travel information

Travel information

Origin airport
Basin Intl.
Destination airport
Missoula Intl.
Airlines serving
Delta, United
Roundtrip price
$268
Distance
489 mi

Book with confidence

Book with confidence

Williston to Missoula Flights

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

 

The best time to book a flight from Williston to Missoula

Sunday is one of the best days to book for cheap flights from Williston 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 Williston 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 Williston to Missoula in 2025. You can also book with separate airlines for your outbound and return journeys, from $222 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 Williston 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 Williston 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.

 

Williston to Missoula Flights

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*Available to One Key members.