Seattle

$109+ Cheap flights from Sioux Falls to Seattle (FSD - 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — SEA
ene. 11 — ene. 181
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Cheapflights Tip: The best prices from Sioux Falls Joe Foss Field to Seattle/Tacoma Intl are usually found in August or July, booked 58 days in advance, depart on a Tuesday or Saturday and return on a Saturday

Cheap flight deals from Sioux Falls to Seattle

Cheapest flights from Sioux Falls to Seattle
Explore the most affordable flight options available from Sioux Falls to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/183:08 pmFSD - SEA
1 stop9h 39mUnited Airlines
jue. 1/1510:58 amSEA - FSD
1 stop8h 52mUnited Airlines
Deal found 12/10$353
This American Airlines deal was found by Cheapflights users on 12/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/193:09 pmFSD - SEA
1 stop8h 26mAmerican Airlines
mié. 12/313:00 pmSEA - FSD
1 stop6h 39mAmerican Airlines
Deal found 12/10$374
This United Airlines deal was found by Cheapflights users on 12/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/225:12 pmFSD - SEA
1 stop8h 00mUnited Airlines
mar. 1/67:00 amSEA - FSD
1 stop8h 18mUnited Airlines
Deal found 12/11$378
This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/183:08 pmFSD - SEA
1 stop9h 39mUnited Airlines
vie. 1/23:50 pmSEA - FSD
1 stop6h 05mUnited Airlines
Deal found 12/10$398
This Kiwi.com deal was found by Cheapflights users on 12/10. 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.
lun. 12/228:50 pmFSD - SEA
2 stops19h 04mMultiple Airlines
sáb. 1/37:28 pmSEA - FSD
1 stop14h 22mMultiple Airlines
Deal found 12/10$430
This United Airlines deal was found by Cheapflights users on 12/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/241:52 pmFSD - SEA
1 stop6h 14mUnited Airlines
mar. 1/63:30 pmSEA - FSD
1 stop6h 14mUnited Airlines
Deal found 12/11$469
This American Airlines deal was found by Cheapflights users on 12/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/235:16 pmFSD - SEA
1 stop7h 51mAmerican Airlines
mar. 1/62:35 pmSEA - FSD
1 stop7h 06mAmerican Airlines
Deal found 12/11$473

Find flight deals from Sioux Falls to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) 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 diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$203
(Kiwi.com)

One-way from

$109
(Kiwi.com)

Popular in

June

Cheapest in

August

Average price

$457
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Seattle/Tacoma Intl flight deals.
Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Seattle/Tacoma Intl flights.
From Sioux Falls Joe Foss Field to Seattle/Tacoma Intl
One-way flight from Sioux Falls Joe Foss Field to Seattle/Tacoma Intl
Highest demand for flights based on searches. 8% potential increase in price ($39 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sioux 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 diciembre 12, 2025.
Use the filters below to find and compare flights from Sioux Falls to Seattle that are best for you.

Fly from

Sioux Falls

Fly to

Seattle

Route

Depart

Return

Price

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

vie. 1/9

9:31 pm-9:04 am

1 stop13h 33m

Seattle/Tacoma Intl

lun. 1/12

1:02 pm-2:47 pm

1 stop23h 45m

$228

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

jue. 1/8

7:45 pm-4:29 pm

2 stops22h 44m

Seattle/Tacoma Intl

jue. 1/15

12:59 pm-9:57 am

1 stop18h 58m

$244

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

sáb. 1/17

5:18 pm-9:15 pm

1 stop5h 57m

Seattle/Tacoma Intl

sáb. 1/31

10:58 am-9:50 pm

1 stop8h 52m

$257

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

mar. 1/20

2:25 pm-8:35 pm

1 stop8h 10m

Seattle/Tacoma Intl

mar. 1/27

2:35 pm-11:41 pm

1 stop7h 06m

$267

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

mié. 2/11

7:30 am-4:01 pm

1 stop10h 31m

Seattle/Tacoma Intl

mié. 2/18

7:00 am-5:21 pm

1 stop8h 21m

$290

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

vie. 2/13

10:50 am-2:54 pm

1 stop6h 04m

Seattle/Tacoma Intl

mié. 2/18

6:10 am-3:35 pm

1 stop7h 25m

$309

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

lun. 1/5

5:12 pm-11:12 pm

1 stop8h 00m

Seattle/Tacoma Intl

mié. 1/14

5:00 am-12:58 pm

1 stop5h 58m

$338

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

sáb. 1/10

6:00 am-9:55 am

1 stop5h 55m

Seattle/Tacoma Intl

mar. 1/13

5:00 am-5:18 pm

2 stops10h 18m

$354

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

vie. 2/13

5:00 pm-10:59 pm

1 stop7h 59m

Seattle/Tacoma Intl

mié. 2/18

7:00 am-5:21 pm

1 stop8h 21m

$374

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

vie. 1/9

9:31 pm-9:04 am

1 stop13h 33m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 13 results
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Compare providers for flights from Sioux Falls 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 Sioux Falls to Seattle in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 Sioux Falls-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Sioux Falls-Seattle flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Sioux Falls-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sioux Falls-Seattle flights, Cheapflights users trust eDreams the most. eDreams 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 Sioux Falls-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 Sioux Falls to Seattle

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

Cheapflights Insights

Everything you need to know about your flight from Sioux Falls to Seattle

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

Use this chart to determine the optimal time to book a round-trip flight from Sioux Falls to Seattle. Price data was last updated on December 5, 2025.

The price you pay for your flight from Sioux Falls to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 57 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 Sioux Falls to Seattle?

Currently, July is the cheapest month in which you can book a flight from Sioux Falls to Seattle (average of $193). Flying from Sioux Falls to Seattle in June is currently the most expensive (average of $308). 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 FSD to SEA?

Find hourly flight availability from Sioux Falls 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 diciembre 12, 2025.

It’s optimal to fly from Sioux Falls to Seattle at noon. By choosing this option you can save up to 11% on the cost of your flight, compared to a flight in the morning.

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

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 diciembre 12, 2025.
Read through reviews of airlines operating flights from Sioux Falls to Seattle, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Comfort

7.9

Crew

8.5

Overall

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Sioux Falls to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Sioux Falls to Seattle?

    There are many flights that can get you from Sioux Falls to Seattle in 5h 57m. Fly via United Airlines or American Airlines to get the fastest option. The distance between Sioux Falls and Seattle is about 1259 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Sioux Falls to Seattle round-trip?

    Our cheapest airline available from Sioux Falls to Seattle is Frontier. Our recent data shows that you can find tickets from as low as $190 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $208 and $268 round-trip. These flights start at 53% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Sioux Falls to Seattle one-way?

    $101 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $104 and $218, respectively.

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from Sioux Falls to Seattle (average of $193). Flying from Sioux Falls to Seattle in June is currently the most expensive (average of $308). 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
Tacoma
SeaTac
Lakewood
Olympia
Ocean Shores
Edmonds
Lynnwood
Renton
Puyallup
Kirkland
Tukwila
Kent
Cle Elum
Marysville
Leavenworth
Fife
Aberdeen
Shoreline
Centralia
Federal Way

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Top 4 airlines flying from Sioux Falls to Seattle

Discover the top 4 airlines that operate flights from Sioux 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 diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$190Average$285FlexibilityNo cancel feeOn-time62%
DeltaCheapest$208Average$435FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$415FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$284Average$513FlexibilityNo cancel feeOn-time69%

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