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$118+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — SEA
Aug 18 — Aug 251
Mon 8/18
Mon 8/25
1 adult, Economy
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Cheap 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 13, 2025.

Round-trip from

$219
(FlightHub)

One-way from

$118
(Booking.com)

Popular in

March

Cheapest in

August

Average price

$302
From South Dakota to Seattle/Tacoma Intl
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One-way flight from South Dakota to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 10% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 13, 2025.

This FlightHub deal was found by Cheapflights users on 8/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/203:07 pmFSD - SEA
1 stop9h 54mFrontier
Wed 8/276:41 amSEA - FSD
1 stop5h 31mFrontier
Deal found 8/11$219
This Expedia deal was found by Cheapflights users on 8/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/222:54 pmFSD - SEA
1 stop11h 36mFrontier
Mon 9/296:12 amSEA - FSD
1 stop5h 57mFrontier
Deal found 8/11$242
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Thu 10/24:38 pmRAP - SEA
1 stop7h 21mAmerican Airlines
Tue 10/711:42 amSEA - RAP
1 stop8h 37mAmerican Airlines
Deal found 8/11$259
This Delta deal was found by Cheapflights users on 8/12. 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.
Wed 11/192:20 pmRAP - SEA
1 stop7h 12mDelta
Mon 11/241:30 pmSEA - RAP
2 stops7h 40mDelta
Deal found 8/12$264
This Expedia deal was found by Cheapflights users on 8/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/122:54 pmFSD - SEA
1 stop11h 36mFrontier
Mon 9/156:12 amSEA - FSD
1 stop5h 57mFrontier
Deal found 8/12$267
This American Airlines deal was found by Cheapflights users on 8/10. 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.
Thu 10/25:19 pmFSD - SEA
1 stop7h 40mAmerican Airlines
Tue 10/710:32 amSEA - FSD
1 stop8h 44mAmerican Airlines
Deal found 8/10$269
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Sat 9/272:45 pmFSD - SEA
1 stop8h 23mAmerican Airlines
Sat 10/45:26 amSEA - FSD
1 stop9h 37mAmerican Airlines
Deal found 8/13$270
This FlightHub deal was found by Cheapflights users on 8/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/163:19 pmFSD - SEA
1 stop18h 14mFrontier
Sun 10/198:43 pmSEA - FSD
1 stop19h 50mFrontier
Deal found 8/11$277
This Delta deal was found by Cheapflights users on 8/12. 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 11/202:20 pmRAP - SEA
1 stop7h 12mDelta
Mon 11/241:30 pmSEA - RAP
2 stops7h 40mDelta
Deal found 8/12$279
This Delta deal was found by Cheapflights users on 8/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/144:35 pmRAP - SEA
1 stop7h 59mDelta
Sun 11/1611:55 pmSEA - RAP
1 stop9h 10mDelta
Deal found 8/10$289
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Tue 11/188:47 amFSD - SEA
2 stops11h 38mUnited Airlines
Mon 11/245:05 amSEA - FSD
1 stop5h 26mUnited Airlines
Deal found 8/11$289
This Frontier deal was found by Cheapflights users on 8/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/172:57 pmFSD - SEA
1 stop11h 37mFrontier
Tue 8/268:42 pmSEA - FSD
2 stops15h 30mFrontier
Deal found 8/11$294

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 August 13, 2025.
Use the filters below to find and compare flights from South Dakota to Seattle that are best for you.

Fly from

South Dakota

Fly to

Seattle

Route

Depart

Return

Price

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 8/20

3:07 pm-11:01 pm

1 stop9h 54m

Seattle/Tacoma Intl

Wed 8/27

6:41 am-2:12 pm

1 stop5h 31m

$219

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Mon 9/22

2:54 pm-12:30 am

1 stop11h 36m

Seattle/Tacoma Intl

Mon 9/29

6:12 am-2:09 pm

1 stop5h 57m

$242

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Thu 10/2

4:38 pm-10:59 pm

1 stop7h 21m

Seattle/Tacoma Intl

Tue 10/7

11:42 am-9:19 pm

1 stop8h 37m

$259

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Wed 11/19

5:34 am-1:10 pm

1 stop8h 36m

Seattle/Tacoma Intl

Mon 11/24

5:24 am-1:50 pm

1 stop7h 26m

$259

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Wed 11/19

2:20 pm-8:32 pm

1 stop7h 12m

Seattle/Tacoma Intl

Mon 11/24

1:30 pm-10:10 pm

2 stops7h 40m

$264

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Fri 9/12

2:54 pm-12:30 am

1 stop11h 36m

Seattle/Tacoma Intl

Mon 9/15

6:12 am-2:09 pm

1 stop5h 57m

$267

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Tue 9/9

2:30 pm-8:24 pm

1 stop7h 54m

Seattle/Tacoma Intl

Tue 9/16

6:00 am-1:51 pm

1 stop5h 51m

$269

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Sat 10/11

5:42 pm-12:27 am

1 stop8h 45m

Seattle/Tacoma Intl

Sat 10/18

5:22 am-4:35 pm

1 stop9h 13m

$269

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Fri 10/17

5:48 pm-12:27 am

1 stop8h 39m

Seattle/Tacoma Intl

Tue 10/21

11:42 am-9:16 pm

1 stop7h 34m

$269

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Thu 10/2

5:19 pm-10:59 pm

1 stop7h 40m

Seattle/Tacoma Intl

Tue 10/7

10:32 am-9:16 pm

1 stop8h 44m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 26 results
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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 $238). Flying from South Dakota 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.

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

Find hourly flight availability from South Dakota 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 August 13, 2025.

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

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.

  • 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 $238). Flying from South Dakota 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

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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 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$139Average$270FlexibilityNo cancel feeOn-time62%
DeltaCheapest$228Average$580FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$430FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$282Average$563FlexibilityNo cancel feeOn-time69%

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