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$90+ Cheap flights from Missoula to Seattle (MSO - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — SEA
Aug 23 — Aug 301
Sun 8/23
Sun 8/30
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Missoula Johnson-Bell Field to Seattle/Tacoma Intl are usually found in September or January, booked 64 days in advance, depart on a Wednesday or Thursday and return on a Saturday

Cheap flight deals from Missoula to Seattle

Cheapest flights from Missoula to Seattle
Explore the most affordable flight options available from Missoula to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 24, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/239:52 pm
MSO
-
SEA
1 stop13h 47m
Multiple Airlines
Wed 8/268:53 pm
SEA
-
MSO
1 stop23h 09m
Multiple Airlines
Deal found 7/20$202
This Kiwi.com deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/139:49 pm
MSO
-
SEA
1 stop20h 56m
Multiple Airlines
Wed 9/309:16 pm
SEA
-
MSO
1 stop15h 34m
Multiple Airlines
Deal found 7/19$230
This Alaska Airlines deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:00 am
MSO
-
SEA
Nonstop1h 47m
Alaska Airlines
Wed 11/119:43 am
SEA
-
MSO
Nonstop1h 25m
Alaska Airlines
Deal found 7/21$237
This Kiwi.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/209:52 pm
MSO
-
SEA
1 stop13h 47m
Multiple Airlines
Wed 8/2610:34 am
SEA
-
MSO
2 stops33h 28m
Multiple Airlines
Deal found 7/22$238
This Alaska Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:15 am
MSO
-
SEA
Nonstop1h 43m
Alaska Airlines
Sun 9/69:55 am
SEA
-
MSO
Nonstop1h 28m
Alaska Airlines
Deal found 7/22$257
This Kiwi.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/209:52 pm
MSO
-
SEA
1 stop13h 47m
Multiple Airlines
Sat 8/298:53 pm
SEA
-
MSO
1 stop23h 09m
Multiple Airlines
Deal found 7/22$275

Find flight deals from Missoula to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Missoula (MSO) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$202
(Kiwi.com)

One-way from

$90
(Kiwi.com)

Popular in

July

Cheapest in

September

Average price

$587

Good round-trip deal

$442 or less

Good one-way deal

$278 or less
Provider with most accurate pricing for Missoula Johnson-Bell Field-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Missoula Johnson-Bell Field-Seattle/Tacoma Intl flights.
Search Deals
From Missoula Johnson-Bell Field to Seattle/Tacoma Intl
Search Deals
One-way flight from Missoula Johnson-Bell Field to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 31% potential increase in price ($134 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Missoula Johnson-Bell Field to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Missoula Johnson-Bell Field to Seattle/Tacoma Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missoula to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 24, 2026.
Use the filters below to find and compare flights from Missoula to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MissoulaSeattle

MSO - SEA

MSOSEA

Missoula Johnson-Bell Field

Sat 11/7

7:00 am-7:47 am

Nonstop1h 47m

Seattle/Tacoma Intl

Wed 11/11

9:43 am-12:08 pm

Nonstop1h 25m

$237

MissoulaSeattle

MSO - SEA

MSOSEA

Missoula Johnson-Bell Field

Wed 10/21

6:24 pm-10:05 pm

1 stop4h 41m

Seattle/Tacoma Intl

Fri 10/23

5:41 pm-12:21 am

1 stop5h 40m

$267

MissoulaSeattle

MSO - SEA

MSOSEA

Missoula Johnson-Bell Field

Fri 9/18

6:17 pm-11:59 pm

1 stop6h 42m

Seattle/Tacoma Intl

Mon 9/28

5:45 am-12:37 pm

1 stop5h 52m

$277

MissoulaSeattle

MSO - SEA

MSOSEA

Missoula Johnson-Bell Field

Sun 9/13

7:00 am-7:43 am

Nonstop1h 43m

Seattle/Tacoma Intl

Wed 9/30

10:02 am-12:39 pm

Nonstop1h 37m

$287

MissoulaSeattle

MSO - SEA

MSOSEA

Missoula Johnson-Bell Field

Wed 11/4

12:55 pm-7:10 am

1 stop19h 15m

Seattle/Tacoma Intl

Thu 11/5

9:43 am-12:08 pm

Nonstop1h 25m

$292

MissoulaSeattle

MSO - SEA

MSOSEA

Missoula Johnson-Bell Field

Tue 12/1

6:10 pm-12:11 am

1 stop7h 01m

Seattle/Tacoma Intl

Sat 12/5

11:25 am-5:27 pm

1 stop5h 02m

$317
Quickest round-trip

MissoulaSeattle

MSO - SEA

MSOSEA

Missoula Johnson-Bell Field

Tue 12/1

4:13 pm-4:55 pm

Nonstop1h 42m

Seattle/Tacoma Intl

Sat 12/5

9:33 pm-11:59 pm

Nonstop1h 26m

$327

MissoulaSeattle

MSO - SEA

MSOSEA

Missoula Johnson-Bell Field

Sat 9/12

7:00 am-7:43 am

Nonstop1h 43m

Seattle/Tacoma Intl

Mon 9/14

6:51 pm-1:25 pm

1 stop17h 34m

$335
Cheapest one-way

MissoulaSeattle

MSO - SEA

MSOSEA

Missoula Johnson-Bell Field

Sat 10/10

6:24 pm-10:05 pm

1 stop4h 41m

$124

MissoulaSeattle

MSO - SEA

MSOSEA

Missoula Johnson-Bell Field

Tue 10/6

6:24 pm-10:05 pm

1 stop4h 41m

$129

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/19

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Compare providers for flights from Missoula to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Missoula to Seattle in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Missoula-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Missoula-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Missoula-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Missoula-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Missoula-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Missoula to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Missoula with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Missoula to Seattle

How far ahead should I book a flight from Missoula to Seattle?

The price you pay for your flight from Missoula to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 63 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Missoula to Seattle?

Currently, September is the cheapest month in which you can book a flight from Missoula to Seattle (average of $197). Flying from Missoula to Seattle in July is currently the most expensive (average of $587). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MSO to SEA?

Find hourly flight availability from Missoula to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 24, 2026.

A simple way to save on the total cost of your ticket is to fly from Missoula to Seattle at noon. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Missoula to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Missoula to Seattle. Price data was last updated on July 18, 2026.

Travelers seeking maximum savings on their Missoula to Seattle flight should consider departing on Thursday at noon when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Missoula to Seattle?

Airfare is below average for this route at the moment.

Missoula to Seattle flights typically cost between $297 and $565 in August.
The cheapest round-trip price found within the last 5 days was $202 on Multiple Airlines (Aug 23-Aug 26).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated July 24, 2026.
Read reviews from past customers who have flown Alaska Airlines from Missoula to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,705 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Alaska Airlines
7.9
Good
12,705 reviews
Alaska Airlines
7.9
Good
12,705 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Overall

7.9

Food

7.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.

Related info for your journey

Find useful and relevant information for your journey from Missoula to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Missoula to Seattle?

    Booking a flight from Missoula Johnson-Bell Field (MSO) to Seattle/Tacoma Intl (SEA) is your only option if you wish to fly from Missoula to Seattle. On a typical day, there are 8 flights from Johnson-Bell Field to Seattle/Tacoma Intl, all of which are around 1h 34m for a nonstop flight. You can also purchase a plane ticket from 1 airline when you book a flight from Johnson-Bell Field to Seattle.

  • How popular is this Missoula to Seattle flight route?

    This flight path from Missoula Johnson-Bell Field to Seattle/Tacoma Intl was viewed by 15 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Missoula to Seattle?

    Alaska Airlines and Delta can get you from Missoula to Seattle in just under 1h 47m. Your travel time can differ by up to 2h 54m. Airlines will cover a distance of 387 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Missoula to Seattle round-trip?

    Flying on Alaska Airlines is currently your cheapest option to Seattle, with prices starting at $157. Alaska Airlines is currently priced 47% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Missoula to Seattle?

    Before booking your flight to Seattle from Missoula, check out the most reliable airlines to get you to your destination on time: Japan Airlines (91%), SkyWest Airlines (83%), British Airways( 82%).

  • What are the cheapest flights from Missoula to Seattle?

    On average you can expect to pay $497 for a flight from Missoula to Seattle. The cheapest flight overall is $189 while the most popular route, (Missoula Johnson-Bell Field - Seattle/Tacoma Intl) is currently priced at $247.

  • Can I find deals for flights from Missoula to Seattle that include hotel bookings?

    Yes. In addition to deals on Missoula to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missoula to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missoula to Seattle.

  • Can I find deals for business class flights from Missoula to Seattle?

    Yes. Cheapflights offers flight deals from Missoula to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Missoula to Seattle?

    Currently, September is the cheapest month in which you can book a flight from Missoula to Seattle (average of $197). Flying from Missoula to Seattle in July is currently the most expensive (average of $587). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Renton
Lacey
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Centralia
Puyallup
Kent
Ellensburg
Fife
Marysville
Ocean Shores
Lakewood
Lynnwood
Issaquah

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Missoula to Seattle

Discover the top airline that operate flights from Missoula to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$157Average$292FlexibilityNo cancel feeOn-time75%

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