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$423+ Cheap flights from Twin Falls to Seattle (TWF - 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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
TWF — SEA
Aug 21 — Aug 281
Thu 8/21
Thu 8/28
1 adult, Economy
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Cheap flight deals from Twin Falls to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Twin Falls (TWF) 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 August 16, 2025.

Round-trip from

$531
(Delta)

One-way from

$423
(Delta)
From Twin Falls Joslin to Seattle/Tacoma Intl
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One-way flight from Twin Falls Joslin to Seattle/Tacoma Intl
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Find flight deals from Twin Falls to Seattle

Cheapest flights from Twin Falls to Seattle
Explore the most affordable flight options available from Twin Falls to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.

This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/283:20 pmTWF - SEA
1 stop4h 40mDelta
Mon 9/17:10 amSEA - TWF
1 stop6h 28mDelta
Deal found 8/14$531
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/306:15 amTWF - SEA
1 stop3h 40mDelta
Wed 9/39:40 amSEA - TWF
1 stop3h 58mDelta
Deal found 8/14$637

Cheapflights Fare Finder

 
Customize your flight search to find flights from Twin Falls 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 August 16, 2025.
Use the filters below to find and compare flights from Twin Falls to Seattle that are best for you.

Fly from

Twin Falls

Fly to

Seattle

Route

Depart

Return

Price

Twin FallsSeattle

TWF - SEA

TWFSEA

Twin Falls Joslin

Thu 8/28

3:20 pm-7:00 pm

1 stop4h 40m

Seattle/Tacoma Intl

Mon 9/1

7:10 am-2:38 pm

1 stop6h 28m

$531

Twin FallsSeattle

TWF - SEA

TWFSEA

Twin Falls Joslin

Sat 8/30

6:15 am-8:55 am

1 stop3h 40m

Seattle/Tacoma Intl

Wed 9/3

9:40 am-2:38 pm

1 stop3h 58m

$637

Twin FallsSeattle

TWF - SEA

TWFSEA

Twin Falls Joslin

Sat 8/23

6:15 am-8:55 am

1 stop3h 40m

$423

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Best time to book a flight from Twin Falls to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Twin Falls 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 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 August 16, 2025.
Read through reviews of airlines operating flights from Twin Falls to Seattle, such as Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,985 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

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
7,985 reviews
Delta
8.0
Very good
7,985 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

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

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

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

    Our cheapest airline available from Twin Falls to Seattle is Delta. Our recent data shows that you can find tickets from as low as $416 on this airline.

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

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

  • How can I find direct flights from Twin Falls to Seattle?

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

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

    Yes. Cheapflights offers flight deals from Twin Falls 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 Twin Falls to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Twin Falls to Seattle (average of $238). Flying from Twin Falls to Seattle in June is currently the most expensive (average of $389). 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
Tukwila
Tacoma
Ocean Shores
Lakewood
Lynnwood
Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Twin Falls to Seattle

Discover the top airline that operate flights from Twin Falls 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 August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$416Average$448FlexibilityNo cancel feeOn-timeN/A

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