$79 Cheap Flights from Seattle (SEA) to Missoula (MSO)

View $79 flight on Wed, May 14, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Missoula Intl. Airport (MSO)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key
Find available prices by choosing your travel dates.

Cheap Flights from Seattle to Missoula (SEA-MSO)

Prices were available within the past 7 days and start at $79 for one-way flights and $157 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Wed, May 21 - Tue, Jun 3
SEA
Seattle
MSO
Missoula
$157 Roundtrip, just found
$157
Roundtrip
just found
Select Hawaiian Airlines flight, departing Wed, May 21 from Seattle to Missoula, returning Tue, Jun 3, priced at $157 just found
Alaska Airlines
Tue, Jun 3 - Tue, Jun 10
SEA
Seattle
MSO
Missoula
$167 Roundtrip, found 6 hours ago
$167
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Tue, Jun 3 from Seattle to Missoula, returning Tue, Jun 10, priced at $167 found 6 hours ago
Hawaiian Airlines
Wed, May 21 - Sat, May 31
SEA
Seattle
MSO
Missoula
$167 Roundtrip, just found
$167
Roundtrip
just found
Select Hawaiian Airlines flight, departing Wed, May 21 from Seattle to Missoula, returning Sat, May 31, priced at $167 just found
Alaska Airlines
Tue, Jun 3 - Tue, Jun 10
SEA
Seattle
MSO
Missoula
$169 Roundtrip, found 6 hours ago
$169
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Tue, Jun 3 from Seattle to Missoula, returning Tue, Jun 10, priced at $169 found 6 hours ago
Alaska Airlines
Tue, May 13 - Tue, May 20
SEA
Seattle
MSO
Missoula
$176 Roundtrip, found 2 days ago
$176
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, May 13 from Seattle to Missoula, returning Tue, May 20, priced at $176 found 2 days ago
Delta
Tue, Jun 3 - Tue, Jun 10
SEA
Seattle
MSO
Missoula
$177 Roundtrip, found 6 hours ago
$177
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, Jun 3 from Seattle to Missoula, returning Tue, Jun 10, priced at $177 found 6 hours ago
Alaska Airlines
Sun, Jun 8 - Tue, Jun 10
SEA
Seattle
MSO
Missoula
$178 Roundtrip, found 20 hours ago
$178
Roundtrip
found 20 hours ago
Select Alaska Airlines flight, departing Sun, Jun 8 from Seattle to Missoula, returning Tue, Jun 10, priced at $178 found 20 hours ago
Alaska Airlines
Tue, Jun 3 - Tue, Jun 10
SEA
Seattle
MSO
Missoula
$179 Roundtrip, found 6 hours ago
$179
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Tue, Jun 3 from Seattle to Missoula, returning Tue, Jun 10, priced at $179 found 6 hours ago
Frontier Airlines
Thu, Aug 14 - Mon, Aug 18
SEA
Seattle
MSO
Missoula
$232 Roundtrip, found 3 days ago
$232
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Aug 14 from Seattle to Missoula, returning Mon, Aug 18, priced at $232 found 3 days ago
United
Fri, May 30 - Tue, Jun 3
SEA
Seattle
MSO
Missoula
$485 Roundtrip, found 17 hours ago
$485
Roundtrip
found 17 hours ago
Select United flight, departing Fri, May 30 from Seattle to Missoula, returning Tue, Jun 3, priced at $485 found 17 hours ago
Flights from Seattle (SEA) to Missoula (MSO)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Missoula Intl.
Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$151
Distance
387 mi

Seattle to Missoula Flights

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

The best time to book a flight from Seattle to Missoula

Sunday is one of the best days to book for cheap flights from Seattle 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 Seattle 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 Seattle to Missoula in 2025. You can also book with separate airlines for your outbound and return journeys, from $79 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 Seattle 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 Seattle 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 Seattle - Tacoma Intl. Airport (SEA) to Missoula Intl. Airport (MSO) cost?
Grab cheap return flights starting from $151 from Seattle - Tacoma Intl. Airport (SEA) 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 Alaska Airlines flight leaving SEA on May 13 2025 and touching down at MSO. The price was last updated on April 22 2025 and has not changed since.
What is the cheapest month to fly from SEA to MSO?
The cheapest flights from SEA 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.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Missoula Intl. Airport (MSO)?
Fly directly from Seattle - Tacoma Intl. Airport (SEA) to Missoula Intl. Airport (MSO) on an Alaska Airlines flight.
What is the cheapest airline that flies from SEA to MSO?
Journey from SEA to MSO with Alaska Airlines. This carrier currently offers the cheapest one-way fare on this route, starting from $79. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SEA on June 17 2025. Prices were last updated on April 22 2025 and have not changed since.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Missoula Intl. Airport (MSO)?
With, on average, 2 direct flights that operate from Seattle - Tacoma Intl. Airport (SEA) to Missoula Intl. Airport (MSO) daily, you’ll be off on your next adventure in no time.
What are the most popular departure times for flights from Seattle - Tacoma Intl. Airport (SEA) to Missoula Intl. Airport (MSO)?
Flights between SEA and MSO are busiest at 3 PM. If you’re after a less crowded experience and possibly cheaper prices, look for a time outside the usual busy windows.
What day of the week has the most flights from SEA to MSO?
If you depart on a Friday, you’ll get the biggest range of choices for flights from Seattle - Tacoma Intl. Airport (SEA) to Missoula Intl. Airport (MSO).
What is the earliest flight from Seattle - Tacoma Intl. Airport (SEA) to Missoula Intl. Airport (MSO)?
Catch the earliest flight at around 11:25AM UTC-8, departing from Seattle - Tacoma Intl. Airport (SEA). You’ll be in the air for around 1h 17m, reaching Missoula Intl. Airport (MSO) at approximately 1:42PM UTC-7.
How long does it take to fly from Seattle - Tacoma Intl. Airport (SEA) to Missoula Intl. Airport (MSO)?
It takes about 1 hour and 16 minutes to travel the 390 mi from SEA to MSO.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Missoula Intl. Airport (MSO)?
Choose a flight from Seattle - Tacoma Intl. Airport (SEA) to Missoula Intl. Airport (MSO) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures later than this 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.
What airports do you fly into for Missoula from Seattle - Tacoma Intl. Airport (SEA)?
Browse your flight options from Seattle - Tacoma Intl. Airport (SEA) to Missoula Intl. Airport (MSO). This is the only Missoula airport you can fly into if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Missoula Intl. Airport (MSO) last-minute?
Last-minute bookings from SEA to MSO are generally more expensive. To secure the lowest rates, start searching for flights ahead of time. That being said, if your travel plans are flexible, it’s possible to score a cheap fare just before your departure.
Is it cheaper to book a SEA to MSO flight and hotel package?
Securing a SEA to MSO flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our wide range of hotels 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 Seattle - Tacoma Intl. Airport (SEA) to Missoula Intl. Airport (MSO)?
If you reserved your SEA to MSO flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

Explore a world of travel with Expedia

*Available to One Key members.