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$126+ Cheap flights from South Dakota to Seattle (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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
FSD ā€” SEA
Sep 2 ā€” Sep 91
Wed 9/2
Wed 9/9
1 adult, Economy
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Cheap flight deals from South Dakota to Seattle

Cheapest flights from South Dakota to Seattle
Explore the most affordable flight options available from South Dakota to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 3, 2026.

This Frontier deal was found by Cheapflights users on 7/31. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure Frontier is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Mon 8/248:56 pm
FSD
-
SEA
1 stop18h 26m
Frontier
Sun 8/307:06 pm
SEA
-
FSD
1 stop22h 55m
Frontier
Deal found 7/31$240
This Frontier deal was found by Cheapflights users on 8/3. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure Frontier is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Fri 9/48:56 pm
FSD
-
SEA
1 stop14h 23m
Frontier
Thu 9/104:27 pm
SEA
-
FSD
1 stop25h 40m
Frontier
Deal found 8/3$267
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure Kiwi.com is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Fri 10/167:31 pm
FSD
-
SEA
1 stop16h 20m
Multiple Airlines
Sat 10/249:16 pm
SEA
-
FSD
1 stop13h 50m
Multiple Airlines
Deal found 7/30$287
This American Airlines deal was found by Cheapflights users on 8/1. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure American Airlines is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Thu 9/1011:45 am
RAP
-
SEA
1 stop6h 49m
American Airlines
Sun 9/136:00 am
SEA
-
RAP
1 stop8h 49m
American Airlines
Deal found 8/1$329
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure Kiwi.com is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Sun 10/1112:41 pm
FSD
-
SEA
1 stop23h 19m
Multiple Airlines
Tue 10/207:41 pm
SEA
-
FSD
1 stop20h 55m
Multiple Airlines
Deal found 7/30$331
This Delta deal was found by Cheapflights users on 8/2. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure Delta is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Sat 8/294:28 pm
FSD
-
SEA
1 stop7h 32m
Delta
Sat 9/52:30 pm
SEA
-
FSD
1 stop6h 21m
Delta
Deal found 8/2$339
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure United Airlines is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Sat 8/299:35 am
FSD
-
SEA
2 stops10h 54m
United Airlines
Sat 9/53:54 pm
SEA
-
FSD
1 stop5h 50m
United Airlines
Deal found 8/2$344
This Delta deal was found by Cheapflights users on 7/29. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure Delta is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Thu 8/274:30 pm
RAP
-
SEA
1 stop8h 24m
Delta
Thu 9/311:59 pm
SEA
-
RAP
1 stop9h 03m
Delta
Deal found 7/29$349
This United Airlines deal was found by Cheapflights users on 8/1. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure United Airlines is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Fri 8/215:58 pm
RAP
-
SEA
1 stop6h 06m
United Airlines
Sun 8/305:00 am
SEA
-
RAP
1 stop6h 24m
United Airlines
Deal found 8/1$354
This CheapOair deal was found by Cheapflights users on 7/29. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure CheapOair is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Wed 8/58:08 pm
FSD
-
SEA
1 stop14h 56m
Frontier
Sun 8/167:06 pm
SEA
-
FSD
1 stop22h 17m
Frontier
Deal found 7/29$355
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure United Airlines is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Sun 8/307:00 am
RAP
-
SEA
1 stop5h 44m
United Airlines
Sun 9/65:00 am
SEA
-
RAP
1 stop6h 24m
United Airlines
Deal found 8/2$358
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the ā€œPick Datesā€ button in this card will allow you to select your dates and further customize your flight criteria. From there, click ā€œFind dealsā€, make sure United Airlines is selected, and click ā€œCompare selectedā€ under the list of providers to see comparable flight deals.
Thu 8/279:35 am
FSD
-
SEA
1 stop8h 17m
United Airlines
Thu 9/33:54 pm
SEA
-
FSD
1 stop5h 50m
United Airlines
Deal found 7/30$358

Find flight deals from South Dakota to Seattle

Keep the following information in mind while searching for South Dakota to Seattle flight deals. Data was last updated August 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$240
(Frontier)

One-way from

$126
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$428
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Seattle/Tacoma Intl flights.
Search Deals
From South Dakota to Seattle/Tacoma Intl
Search Deals
One-way flight from South Dakota to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($85 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

Ā 
Customize your flight search to find flights from South Dakota 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 3, 2026.
Use the filters below to find and compare flights from South Dakota to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Wed 8/26

10:26 am-3:52 pm

1 stop6h 26m

Seattle/Tacoma Intl

Wed 9/2

11:03 am-5:58 pm

1 stop5h 55m

$349

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Fri 8/28

6:50 pm-11:04 pm

1 stop6h 14m

Seattle/Tacoma Intl

Fri 9/4

1:57 pm-11:22 pm

1 stop7h 25m

$359

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Sat 10/17

11:17 am-5:37 pm

1 stop7h 20m

Seattle/Tacoma Intl

Wed 10/21

5:00 am-11:55 am

1 stop5h 55m

$409

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Mon 8/31

10:26 am-3:52 pm

1 stop6h 26m

Seattle/Tacoma Intl

Wed 9/9

6:32 am-8:38 pm

2 stops13h 06m

$414

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Thu 8/27

7:00 am-3:45 pm

2 stops9h 45m

Seattle/Tacoma Intl

Tue 9/1

9:05 am-8:37 pm

2 stops10h 32m

$419

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Wed 9/9

11:22 am-6:29 pm

2 stops8h 07m

Seattle/Tacoma Intl

Sun 9/13

5:00 am-11:55 am

1 stop5h 55m

$424

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Thu 8/20

5:58 pm-11:04 pm

1 stop6h 06m

Seattle/Tacoma Intl

Fri 8/28

5:00 am-12:24 pm

1 stop6h 24m

$429

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 9/2

9:35 am-4:14 pm

2 stops8h 39m

Seattle/Tacoma Intl

Sun 9/6

9:05 am-11:22 pm

2 stops12h 17m

$439

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 9/2

11:12 am-11:26 pm

2 stops14h 14m

Seattle/Tacoma Intl

Thu 9/10

1:57 pm-11:12 pm

1 stop7h 15m

$454

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Sat 9/5

9:35 am-6:29 pm

2 stops10h 54m

Seattle/Tacoma Intl

Thu 9/10

12:44 pm-8:07 pm

1 stop5h 23m

$459

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/2

Showing 1-10 of 38 resultsSorted by cheapest first
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Best time to book a flight from South Dakota to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from South Dakota 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 South Dakota to Seattle

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

Currently, January is the cheapest month in which you can book a flight from South Dakota to Seattle (average of $339). Flying from South Dakota to Seattle in July is currently the most expensive (average of $628). 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.

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

Airfare is below average for this route at the moment.
South Dakota to Seattle flights typically cost between $368 and $514 in August.
The cheapest round-trip price found within the last 5 days was $240 on Frontier (Aug 24-Aug 30).

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

To ensure you get the cheapest price possible for a flight from South Dakota to Seattle, you should look to book at least 31 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

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

  • What airport do you fly into for flights to Seattle from South Dakota?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from South Dakota to Seattle. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattleā€™s city center.

  • How long is the flight from South Dakota to Seattle?

    For as low as $349, United Airlines can have you in Seattle from South Dakota in 6h 26m. South Dakota and Seattle are separated by a distance of 954 mi.

  • What are the cheapest airlines to fly from South Dakota to Seattle one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $96. United Airlines flights start at $180 while deals on American Airlines start at $190 one-way.

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

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

  • How can I find direct flights from South Dakota to Seattle?

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

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

    Yes. Cheapflights offers flight deals from South Dakota 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 South Dakota to Seattle?

    Currently, January is the cheapest month in which you can book a flight from South Dakota to Seattle (average of $339). Flying from South Dakota to Seattle in July is currently the most expensive (average of $628). 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
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Edmonds
Snoqualmie
Tumwater
Centralia
Marysville
Puyallup
Kent
Ellensburg
Fife
Ocean Shores
Lakewood
Lynnwood
Poulsbo

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Top 4 airlines flying from South Dakota to Seattle

Discover the top 4 airlines that operate flights from South Dakota 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 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$156Average$305FlexibilityNo cancel feeOn-time62%
DeltaCheapest$228Average$426FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$250Average$443FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$268Average$431FlexibilityNo cancel feeOn-time71%

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