What are the cheapest airlines flying from Seattle to West Yellowstone round-trip?

Our cheapest airline available from Seattle to West Yellowstone is United Airlines. Our recent data shows that you can find tickets from as low as $277 on this airline. An additional option worth looking into is Delta, starting at $443.

What is the cheapest day to fly from Seattle to West Yellowstone?

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

In terms of precipitation, rainfall in West Yellowstone ranges from 1.2 - 2.0 inches per month. January is typically the wettest month, when rainfall can reach 2.0 in. April is typically the driest time to visit West Yellowstone when rainfall is around 1.2 in.

If weather is an important factor for your trip to West Yellowstone, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 15.8 F).

What is the cheapest day to fly round-trip from Seattle to West Yellowstone?

Users have found that leaving on a Wednesday can be a cost-effective option. It’s possible to save up to 34% on your flight compared to booking on days when demand is much higher.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to West Yellowstone as you normally would.

Can I find deals for flights from Seattle to West Yellowstone that include hotel bookings?

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

How can I find direct flights from Seattle to West Yellowstone?

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

Can I find deals for business class flights from Seattle to West Yellowstone?

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

$277+ Flights from Seattle to West Yellowstone

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Cheap flight deals from Seattle to West Yellowstone

Round-trip from	$277 (United Airlines)

From Seattle/Tacoma Intl to West Yellowstone

Search Deals

Find flight deals from Seattle to West Yellowstone

Cheapest flights from Seattle to West Yellowstone
Explore the most affordable flight options available from Seattle to West Yellowstone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Sun 9/145:02 amSEA - WYS

1 stop7h 13mUnited Airlines

Mon 9/221:51 pmWYS - SEA

1 stop8h 31mUnited Airlines

Deal found 7/27

$277

Fri 8/227:10 amSEA - WYS

1 stop6h 40mDelta

Tue 8/263:25 pmWYS - SEA

1 stop4h 35mDelta

Deal found 7/27

$443

Best flights from Seattle to West Yellowstone
Discover carefully curated flight deals from Seattle to West Yellowstone that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Sun 9/145:02 amSEA - WYS

1 stop7h 13mUnited Airlines

Mon 9/221:51 pmWYS - SEA

1 stop8h 31mUnited Airlines

Deal found 7/27

$277

Fri 8/227:10 amSEA - WYS

1 stop6h 40mDelta

Tue 8/263:25 pmWYS - SEA

1 stop4h 35mDelta

Deal found 7/27

$443

Last-minute flights from Seattle to West Yellowstone
Discover last-minute flight deals from Seattle to West Yellowstone. Data last updated July 29, 2025 and is based on user searches.

Mon 8/115:00 amSEA - WYS

1 stop7h 20mUnited Airlines

Sat 8/1610:15 amWYS - SEA

1 stop8h 34mUnited Airlines

Deal found 7/28

$512

Fri 8/227:10 amSEA - WYS

1 stop6h 40mDelta

Tue 8/263:25 pmWYS - SEA

1 stop4h 35mDelta

Deal found 7/27

$443

One-way flights from Seattle to West Yellowstone
Search for one-way flight options from Seattle to West Yellowstone. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Sat 8/165:30 amSEA - WYS

1 stop4h 06mDelta

Deal found 7/27

$319

Sat 8/165:10 amSEA - WYS

2 stops31h 10mUnited Airlines

Deal found 7/27

$452

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to West Yellowstone that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleWest Yellowstone

SEA - WYS

SEAWYS

Seattle/Tacoma Intl

Sun 9/14

5:02 am-1:15 pm

1 stop7h 13m

West Yellowstone

Mon 9/22

1:51 pm-9:22 pm

1 stop8h 31m

$277

SeattleWest Yellowstone

SEA - WYS

SEAWYS

Seattle/Tacoma Intl

Fri 8/22

7:10 am-2:50 pm

1 stop6h 40m

West Yellowstone

Tue 8/26

3:25 pm-7:00 pm

1 stop4h 35m

$443

SeattleWest Yellowstone

SEA - WYS

SEAWYS

Seattle/Tacoma Intl

Sat 8/16

5:30 am-10:36 am

1 stop4h 06m

$319

SeattleWest Yellowstone

SEA - WYS

SEAWYS

Seattle/Tacoma Intl

Sat 8/16

5:10 am-1:20 pm

2 stops31h 10m

$452

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Seattle to West Yellowstone

Have a flexible travel schedule? Discover the best time to fly to West Yellowstone from Seattle 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.

Reviews of airlines servicing West Yellowstone

Read through reviews of airlines operating flights from Seattle to West Yellowstone, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,979 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,896 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines flying from Seattle to West Yellowstone round-trip?
Our cheapest airline available from Seattle to West Yellowstone is United Airlines. Our recent data shows that you can find tickets from as low as $277 on this airline. An additional option worth looking into is Delta, starting at $443.
Can I find deals for flights from Seattle to West Yellowstone that include hotel bookings?
Yes. In addition to deals on Seattle to West Yellowstone flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to West Yellowstone?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to West Yellowstone.
Can I find deals for business class flights from Seattle to West Yellowstone?
Yes. Cheapflights offers flight deals from Seattle to West Yellowstone by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top airline flying from Seattle to West Yellowstone

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$401	Average$623	FlexibilityNo cancel fee	On-timeN/A

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$277+ Cheap flights from Seattle to West Yellowstone (SEA - WYS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to West Yellowstone with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Seattle to West Yellowstone

Round-trip from

Find flight deals from Seattle to West Yellowstone

Cheapest flights from Seattle to West YellowstoneExplore the most affordable flight options available from Seattle to West Yellowstone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Seattle to West Yellowstone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to West Yellowstone that are best for you.

Best time to book a flight from Seattle to West Yellowstone

Have a flexible travel schedule? Discover the best time to fly to West Yellowstone from Seattle with our price prediction graph.

Reviews of airlines servicing West Yellowstone

Read through reviews of airlines operating flights from Seattle to West Yellowstone, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What are the cheapest airlines flying from Seattle to West Yellowstone round-trip?

Can I find deals for flights from Seattle to West Yellowstone that include hotel bookings?

How can I find direct flights from Seattle to West Yellowstone?

Can I find deals for business class flights from Seattle to West Yellowstone?

Traveling to a place near West Yellowstone?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to West Yellowstone

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Seattle to West Yellowstone

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Book with Flexibility

Travel Smart

Cheapest flights from Seattle to West Yellowstone
Explore the most affordable flight options available from Seattle to West Yellowstone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.