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$140+ 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — SEA
Jul 19 — Jul 261
Sun 7/19
Sun 7/26
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 June 19, 2026.

This CheapOair deal was found by Cheapflights users on 6/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:14 pm
FSD
-
SEA
1 stop15h 34m
Frontier
Sun 9/67:41 pm
SEA
-
FSD
1 stop21h 38m
Frontier
Deal found 6/17$265
This CheapOair deal was found by Cheapflights users on 6/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/88:08 pm
FSD
-
SEA
1 stop15h 09m
Frontier
Tue 7/147:06 pm
SEA
-
FSD
1 stop22h 17m
Frontier
Deal found 6/17$270
This CheapOair deal was found by Cheapflights users on 6/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/228:08 pm
FSD
-
SEA
1 stop15h 09m
Frontier
Thu 7/307:06 pm
SEA
-
FSD
1 stop22h 17m
Frontier
Deal found 6/16$275
This CheapOair deal was found by Cheapflights users on 6/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/158:08 pm
FSD
-
SEA
1 stop15h 09m
Frontier
Tue 7/217:06 pm
SEA
-
FSD
1 stop22h 17m
Frontier
Deal found 6/17$280
This Kiwi.com deal was found by Cheapflights users on 6/17. 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.
Sun 9/2010:02 pm
FSD
-
SEA
1 stop13h 58m
Multiple Airlines
Wed 9/309:16 pm
SEA
-
FSD
1 stop12h 00m
Multiple Airlines
Deal found 6/17$291
This CheapOair deal was found by Cheapflights users on 6/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:14 pm
FSD
-
SEA
1 stop15h 34m
Frontier
Thu 9/107:41 pm
SEA
-
FSD
1 stop20h 55m
Frontier
Deal found 6/17$300
This Frontier deal was found by Cheapflights users on 6/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:31 pm
FSD
-
SEA
1 stop6h 56m
Frontier
Mon 9/287:00 am
SEA
-
FSD
1 stop9h 36m
Frontier
Deal found 6/17$305
This Delta deal was found by Cheapflights users on 6/15. 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 8/274:30 pm
RAP
-
SEA
1 stop8h 24m
Delta
Sat 8/296:05 am
SEA
-
RAP
1 stop8h 25m
Delta
Deal found 6/15$319
This CheapOair deal was found by Cheapflights users on 6/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:14 pm
FSD
-
SEA
1 stop19h 50m
Frontier
Sun 8/307:41 pm
SEA
-
FSD
1 stop21h 38m
Frontier
Deal found 6/14$320
This American Airlines deal was found by Cheapflights users on 6/16. 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.
Wed 7/225:34 pm
FSD
-
SEA
1 stop9h 23m
American Airlines
Wed 8/122:53 pm
SEA
-
FSD
1 stop6h 55m
American Airlines
Deal found 6/16$329
This Kiwi.com deal was found by Cheapflights users on 6/18. 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.
Mon 8/246:50 pm
RAP
-
SEA
2 stops39h 29m
Multiple Airlines
Sat 8/298:53 pm
SEA
-
RAP
1 stop16h 47m
Multiple Airlines
Deal found 6/18$349
This United Airlines deal was found by Cheapflights users on 6/15. 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.
Thu 8/275:00 am
RAP
-
SEA
1 stop6h 01m
United Airlines
Tue 9/11:16 pm
SEA
-
RAP
2 stops8h 12m
United Airlines
Deal found 6/15$359

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 June 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$265
(CheapOair)

One-way from

$140
(Trip.com)

Popular in

June

Cheapest in

July

Average price

$621
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. 12% potential increase in price ($62 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
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 June 19, 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

Thu 8/27

5:58 pm-11:04 pm

1 stop6h 06m

Seattle/Tacoma Intl

Tue 9/1

11:03 am-5:53 pm

1 stop5h 50m

$319
Quickest round-trip

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Sat 10/24

4:26 pm-9:15 pm

1 stop5h 49m

Seattle/Tacoma Intl

Tue 10/27

5:07 am-11:13 am

1 stop5h 06m

$399

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Fri 10/9

5:53 pm-10:59 pm

1 stop6h 06m

Seattle/Tacoma Intl

Thu 10/15

5:00 am-11:56 am

1 stop5h 56m

$410

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Sat 10/24

7:50 am-4:06 pm

1 stop10h 16m

Seattle/Tacoma Intl

Tue 10/27

10:45 am-11:43 pm

2 stops10h 58m

$424

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Sun 9/6

5:00 am-10:01 am

1 stop6h 01m

Seattle/Tacoma Intl

Tue 9/15

5:00 am-12:24 pm

1 stop6h 24m

$459

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 9/2

5:05 pm-11:04 pm

1 stop7h 59m

Seattle/Tacoma Intl

Sun 9/6

1:57 pm-11:22 pm

1 stop7h 25m

$469

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Thu 8/27

11:22 am-9:41 pm

2 stops11h 19m

Seattle/Tacoma Intl

Sat 8/29

9:00 am-10:28 pm

2 stops12h 28m

$470

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 9/2

11:25 am-11:26 pm

2 stops14h 01m

Seattle/Tacoma Intl

Thu 9/10

1:57 pm-11:12 pm

1 stop7h 15m

$485

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Thu 8/20

11:22 am-9:41 pm

2 stops11h 19m

Seattle/Tacoma Intl

Fri 8/28

12:15 pm-10:28 pm

2 stops9h 13m

$497

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Tue 6/30

5:05 pm-9:10 pm

1 stop6h 05m

Seattle/Tacoma Intl

Fri 7/3

10:29 am-11:53 pm

2 stops11h 24m

$509

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 25 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, October is the cheapest month in which you can book a flight from South Dakota to Seattle (average of $156). Flying from South Dakota to Seattle in March is currently the most expensive (average of $338). 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?

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 20 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 Seattle’s city center.

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

    For as low as $319, United Airlines can have you in Seattle from South Dakota in 6h 06m. 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 $101. American Airlines flights start at $180 while deals on United 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, October is the cheapest month in which you can book a flight from South Dakota to Seattle (average of $156). Flying from South Dakota to Seattle in March is currently the most expensive (average of $338). 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
Tacoma
Lacey
Ocean Shores
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Issaquah
Shoreline
Marysville

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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 June 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$190Average$305FlexibilityNo cancel feeOn-time62%
DeltaCheapest$228Average$418FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$421FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$274Average$469FlexibilityNo cancel feeOn-time69%

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