$149 Cheap Flights from Austin (AUS) to Missoula (MSO)

View $149 flight on Tue, Dec 9, 2025Opens in a new window

Popular airlines from Austin-Bergstrom Intl. Airport (AUS) to Missoula Intl. Airport (MSO)

Cheap Flights from Austin to Missoula (AUS-MSO)

Prices were available within the past 7 days and start at $149 for one-way flights and $293 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Nov 1 - Sat, Nov 1
AUS
Austin
MSO
Missoula
$293 Roundtrip, found 2 days ago
$293
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Nov 1 from Austin to Missoula, returning Sat, Nov 1, priced at $293 found 2 days ago
Bargain Flight
Tue, Sep 23 - Wed, Sep 24
AUS
Austin
MSO
Missoula
$297 Roundtrip, found 5 days ago
$297
Roundtrip
found 5 days ago
Select Bargain Flight flight, departing Tue, Sep 23 from Austin to Missoula, returning Wed, Sep 24, priced at $297 found 5 days ago
Hawaiian Airlines
Sat, Oct 11 - Wed, Oct 22
AUS
Austin
MSO
Missoula
$298 Roundtrip, found 3 days ago
$298
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Sat, Oct 11 from Austin to Missoula, returning Wed, Oct 22, priced at $298 found 3 days ago
United
Tue, Oct 7 - Wed, Oct 8
AUS
Austin
MSO
Missoula
$299 Roundtrip, found 2 days ago
$299
Roundtrip
found 2 days ago
Select United flight, departing Tue, Oct 7 from Austin to Missoula, returning Wed, Oct 8, priced at $299 found 2 days ago
Delta
Tue, Dec 2 - Sat, Dec 6
AUS
Austin
MSO
Missoula
$299 Roundtrip, found 5 hours ago
$299
Roundtrip
found 5 hours ago
Select Delta flight, departing Tue, Dec 2 from Austin to Missoula, returning Sat, Dec 6, priced at $299 found 5 hours ago
Hawaiian Airlines
Tue, Sep 30 - Tue, Oct 21
AUS
Austin
MSO
Missoula
$300 Roundtrip, found 1 day ago
$300
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Tue, Sep 30 from Austin to Missoula, returning Tue, Oct 21, priced at $300 found 1 day ago
Alaska Airlines
Sat, Sep 27 - Tue, Sep 30
AUS
Austin
MSO
Missoula
$302 Roundtrip, found 1 day ago
$302
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Sep 27 from Austin to Missoula, returning Tue, Sep 30, priced at $302 found 1 day ago
United
Tue, Sep 23 - Wed, Sep 24
AUS
Austin
MSO
Missoula
$303 Roundtrip, found 5 days ago
$303
Roundtrip
found 5 days ago
Select United flight, departing Tue, Sep 23 from Austin to Missoula, returning Wed, Sep 24, priced at $303 found 5 days ago
United
Tue, Oct 7 - Wed, Oct 8
AUS
Austin
MSO
Missoula
$304 Roundtrip, found 2 days ago
$304
Roundtrip
found 2 days ago
Select United flight, departing Tue, Oct 7 from Austin to Missoula, returning Wed, Oct 8, priced at $304 found 2 days ago
United
Tue, Oct 7 - Wed, Oct 8
AUS
Austin
MSO
Missoula
$305 Roundtrip, found 2 days ago
$305
Roundtrip
found 2 days ago
Select United flight, departing Tue, Oct 7 from Austin to Missoula, returning Wed, Oct 8, priced at $305 found 2 days ago

Find the cheapest month to fly from Austin (AUS) to Missoula (MSO)

June is typically the cheapest month to fly

From $228 - $528 per traveler.

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 $415
MSO
Missoula Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $415
Flights from Austin (AUS) to Missoula (MSO)
Origin airport
Austin-Bergstrom Intl.
Destination airport
Missoula Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, United
Roundtrip price
$292
Distance
1449 mi

Austin to Missoula Flights

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

 

The best time to book a flight from Austin to Missoula

Sunday is one of the best days to book for cheap flights from Austin 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 Austin 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 Austin to Missoula in 2025. You can also book with separate airlines for your outbound and return journeys, from $149 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 Austin 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 Austin 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 Austin-Bergstrom Intl. Airport (AUS) to Missoula Intl. Airport (MSO) cost?
Grab a cheap one-way flight from $149 or cheap return flight from $293 from Austin-Bergstrom Intl. Airport (AUS) to Missoula Intl. Airport (MSO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Austin-Bergstrom Intl. Airport (AUS) to Missoula Intl. Airport (MSO)?
Planning your trip for November may help you find better deals, as it's the cheapest month for flights between AUS and MSO. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Austin-Bergstrom Intl. Airport (AUS) to Missoula Intl. Airport (MSO)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest AUS to MSO flight.
How many flights per day from Austin-Bergstrom Intl. Airport (AUS) to Missoula Intl. Airport (MSO)?
Nonstop flights from Austin-Bergstrom Intl. Airport (AUS) to Missoula Intl. Airport (MSO) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from AUS to MSO?
You'll generally find Tuesday the quietest day for flights, while Fridays are often 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 Austin-Bergstrom Intl. Airport (AUS) to Missoula Intl. Airport (MSO)?
To avoid possible delays on the Austin-Bergstrom Intl. Airport (AUS) to Missoula Intl. Airport (MSO) route, aim to travel before 3 PM. Departures after this time have a 22% higher chance of cancellation.**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 Austin-Bergstrom Intl. Airport (AUS) to Missoula Intl. Airport (MSO) last-minute?
Waiting until right before your break to book a flight from AUS to MSO generally means paying more. While you might find some last-minute offers, there's no guarantee. Keep your travel schedule open for the best chance of landing a bargain.
Is it cheaper to book an AUS to MSO flight and hotel package?
Securing an AUS to MSO flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our wide range of accommodations and then add activities, car rentals and flights 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 Austin-Bergstrom Intl. Airport (AUS) to Missoula Intl. Airport (MSO)?
In most instances, you're able to cancel or reschedule your AUS to MSO flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you want further information, head to our Customer Service portal.

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*Available to One Key members.