$193 Cheap Flights from West Yellowstone (WYS) to Seattle (SEA)

View $193 flight on Fri, Aug 22, 2025Opens in a new window

Popular airlines from West Yellowstone, MT (WYS-Yellowstone) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from West Yellowstone to Seattle (WYS-SEA)

Prices were available within the past 7 days and start at $193 for one-way flights and $336 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Sep 17 - Sat, Sep 27
WYS
West Yellowstone
SEA
Seattle
$336 Roundtrip, found 2 days ago
$336
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Sep 17 from West Yellowstone to Seattle, returning Sat, Sep 27, priced at $336 found 2 days ago
Delta
Wed, Sep 17 - Sun, Sep 28
WYS
West Yellowstone
SEA
Seattle
$342 Roundtrip, found 2 days ago
$342
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Sep 17 from West Yellowstone to Seattle, returning Sun, Sep 28, priced at $342 found 2 days ago
United
Mon, Sep 22 - Tue, Sep 30
WYS
West Yellowstone
SEA
Seattle
$349 Roundtrip, found 2 days ago
$349
Roundtrip
found 2 days ago
Select United flight, departing Mon, Sep 22 from West Yellowstone to Seattle, returning Tue, Sep 30, priced at $349 found 2 days ago
Delta
Mon, Aug 25 - Sat, Aug 30
WYS
West Yellowstone
SEA
Seattle
$352 Roundtrip, found 22 hours ago
$352
Roundtrip
found 22 hours ago
Select Delta flight, departing Mon, Aug 25 from West Yellowstone to Seattle, returning Sat, Aug 30, priced at $352 found 22 hours ago
Delta
Wed, Sep 17 - Fri, Sep 26
WYS
West Yellowstone
SEA
Seattle
$362 Roundtrip, found 2 days ago
$362
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Sep 17 from West Yellowstone to Seattle, returning Fri, Sep 26, priced at $362 found 2 days ago
Delta
Mon, Aug 25 - Fri, Aug 29
WYS
West Yellowstone
SEA
Seattle
$366 Roundtrip, found 22 hours ago
$366
Roundtrip
found 22 hours ago
Select Delta flight, departing Mon, Aug 25 from West Yellowstone to Seattle, returning Fri, Aug 29, priced at $366 found 22 hours ago
Delta
Sat, Aug 23 - Mon, Aug 25
WYS
West Yellowstone
SEA
Seattle
$372 Roundtrip, found 22 hours ago
$372
Roundtrip
found 22 hours ago
Select Delta flight, departing Sat, Aug 23 from West Yellowstone to Seattle, returning Mon, Aug 25, priced at $372 found 22 hours ago
Delta
Sat, Aug 23 - Fri, Aug 29
WYS
West Yellowstone
SEA
Seattle
$386 Roundtrip, found 22 hours ago
$386
Roundtrip
found 22 hours ago
Select Delta flight, departing Sat, Aug 23 from West Yellowstone to Seattle, returning Fri, Aug 29, priced at $386 found 22 hours ago
United
Sat, Sep 20 - Sat, Sep 27
WYS
West Yellowstone
SEA
Seattle
$390 Roundtrip, found 1 day ago
$390
Roundtrip
found 1 day ago
Select United flight, departing Sat, Sep 20 from West Yellowstone to Seattle, returning Sat, Sep 27, priced at $390 found 1 day ago
Delta
Sat, Aug 23 - Sun, Aug 31
WYS
West Yellowstone
SEA
Seattle
$392 Roundtrip, found 22 hours ago
$392
Roundtrip
found 22 hours ago
Select Delta flight, departing Sat, Aug 23 from West Yellowstone to Seattle, returning Sun, Aug 31, priced at $392 found 22 hours ago
Flights from West Yellowstone (WYS) to Seattle (SEA)
Origin airport
Yellowstone
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Delta, United
Roundtrip price
$335
Distance
568 mi

West Yellowstone to Seattle Flights

The cheapest times to fly from West Yellowstone to Seattle

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 West Yellowstone to Seattle are during the month of September. You can find some of the cheapest flights from West Yellowstone to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from West Yellowstone to Seattle

Sunday is one of the best days to book for cheap flights from West Yellowstone to Seattle: 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 West Yellowstone to Seattle

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 West Yellowstone to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $193 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 West Yellowstone to Seattle 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 West Yellowstone to Seattle 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 Yellowstone Airport (WYS) to Seattle - Tacoma Intl. Airport (SEA) cost?
Discover the latest flight deals from WYS to SEA by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from WYS to SEA?
The cheapest flights from WYS to SEA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from WYS to SEA?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from WYS to SEA. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Yellowstone Airport (WYS) to Seattle - Tacoma Intl. Airport (SEA)?
There are no daily nonstop flights departing from Yellowstone Airport (WYS) to Seattle - Tacoma Intl. Airport (SEA). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from WYS to SEA?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change based on various factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Yellowstone Airport (WYS) to Seattle - Tacoma Intl. Airport (SEA)?
To avoid potential delays on the Yellowstone Airport (WYS) to Seattle - Tacoma Intl. Airport (SEA) route, travel before 3 PM. Later departures have a 22% higher chance of being canceled.**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 Yellowstone Airport (WYS) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Last-minute bookings from WYS to SEA are typically more expensive. To secure the lowest prices, start looking for flights as early as possible. That being said, if you're flexible with your travel dates, you may score a cheap fare right before your trip.
Is it cheaper to book a WYS to SEA flight and hotel package?
Compared with arranging flights and hotels separately, booking a WYS to SEA flight and hotel package with Expedia could lead to significant savings. Better yet, managing everything in one place takes the hassle out of planning your trip. Just secure your flights and choose from our wide range of hotels, then tailor your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Yellowstone Airport (WYS) to Seattle - Tacoma Intl. Airport (SEA)?
In most cases, you can cancel or reschedule your WYS to SEA flight. However, there may be additional fees, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you want more information, go to our Customer Service portal.

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*Available to One Key members.