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South Dakota

$118+ Cheap flights from Seattle (SEA) to South Dakota

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FSD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Seattle to South Dakota

Keep the following information in mind while searching for Seattle to South Dakota flight deals. Data was last updated September 11, 2025.

Round-trip from

$201
(Booking.com)

One-way from

$118
(Kiwi.com)

Popular in

April

Cheapest in

October

Average price

$401
From Seattle/Tacoma Intl to South Dakota
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One-way flight from Seattle/Tacoma Intl to South Dakota
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Highest demand for flights based on searches. 15% potential increase in price ($84 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Seattle to South Dakota

Cheapest flights from Seattle to South Dakota
Explore the most affordable flight options available from Seattle to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Booking.com deal was found by Cheapflights users on 9/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:17 pmSEA - FSD
2 stops40h 21mFrontier
Mon 11/102:32 pmFSD - SEA
1 stop23h 41mFrontier
Deal found 9/10$201
This Frontier deal was found by Cheapflights users on 9/11. 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 9/216:12 amSEA - FSD
1 stop5h 57mFrontier
Fri 9/262:54 pmFSD - SEA
1 stop11h 36mFrontier
Deal found 9/11$231
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 10/113:35 pmSEA - RAP
1 stop5h 37mUnited Airlines
Sat 10/187:00 amRAP - SEA
1 stop7h 43mUnited Airlines
Deal found 9/11$259
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Mon 10/612:34 amSEA - FSD
1 stop9h 27mAmerican Airlines
Tue 10/145:25 pmFSD - SEA
1 stop9h 02mAmerican Airlines
Deal found 9/9$269
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 10/95:00 amSEA - RAP
1 stop4h 57mUnited Airlines
Thu 10/168:30 amRAP - SEA
1 stop8h 02mUnited Airlines
Deal found 9/11$286
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 9/265:00 amSEA - RAP
1 stop6h 37mUnited Airlines
Tue 9/304:35 pmRAP - SEA
1 stop5h 59mUnited Airlines
Deal found 9/11$289
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:00 amSEA - RAP
1 stop6h 45mDelta
Tue 10/214:34 pmRAP - SEA
1 stop8h 23mDelta
Deal found 9/11$309
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Mon 10/65:00 amSEA - RAP
1 stop4h 57mUnited Airlines
Thu 10/911:15 amRAP - SEA
1 stop7h 38mUnited Airlines
Deal found 9/10$321
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 9/1711:40 amSEA - FSD
1 stop7h 43mAmerican Airlines
Wed 10/112:19 pmFSD - SEA
1 stop7h 10mAmerican Airlines
Deal found 9/10$324
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/86:35 amSEA - RAP
2 stops11h 05mUnited Airlines
Wed 10/155:50 pmRAP - SEA
1 stop6h 39mUnited Airlines
Deal found 9/10$327
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 9/1711:40 amSEA - FSD
1 stop7h 43mAmerican Airlines
Wed 9/241:19 pmFSD - SEA
1 stop10h 04mAmerican Airlines
Deal found 9/10$349
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 9/1711:54 pmSEA - FSD
1 stop8h 51mUnited Airlines
Wed 9/249:16 amFSD - SEA
2 stops11h 33mUnited Airlines
Deal found 9/10$354

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to South Dakota 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 September 11, 2025.
Use the filters below to find and compare flights from Seattle to South Dakota that are best for you.

Fly from

Seattle

Fly to

South Dakota

Route

Depart

Return

Price

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Fri 11/7

7:17 pm-1:38 pm

2 stops40h 21m

Sioux Falls Joe Foss Field

Mon 11/10

2:32 pm-12:13 pm

1 stop23h 41m

$201

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Sun 9/21

6:12 am-2:09 pm

1 stop5h 57m

Sioux Falls Joe Foss Field

Fri 9/26

2:54 pm-12:30 am

1 stop11h 36m

$231

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 10/25

6:00 am-1:45 pm

1 stop6h 45m

Rapid City

Wed 10/29

10:33 am-4:54 pm

1 stop7h 21m

$259

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Fri 11/14

12:59 am-10:27 am

1 stop7h 28m

Sioux Falls Joe Foss Field

Tue 11/18

6:30 am-1:10 pm

1 stop8h 40m

$269

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Fri 11/7

5:05 am-12:31 pm

1 stop5h 26m

Sioux Falls Joe Foss Field

Mon 11/10

6:00 am-10:35 am

1 stop6h 35m

$269

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Wed 10/8

10:39 am-10:42 pm

1 stop10h 03m

Sioux Falls Joe Foss Field

Wed 10/15

1:33 pm-9:48 pm

1 stop10h 15m

$269

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 9/26

6:35 am-6:40 pm

2 stops11h 05m

Rapid City

Tue 9/30

4:35 pm-9:34 pm

1 stop5h 59m

$294

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 10/15

6:00 am-1:45 pm

1 stop6h 45m

Rapid City

Tue 10/21

6:05 am-4:32 pm

2 stops11h 27m

$314

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Mon 10/6

5:00 am-10:57 am

1 stop4h 57m

Rapid City

Thu 10/9

11:15 am-5:53 pm

1 stop7h 38m

$321

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 10/8

6:35 am-6:40 pm

2 stops11h 05m

Rapid City

Wed 10/15

5:50 pm-11:29 pm

1 stop6h 39m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 38 results
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Best time to book a flight from Seattle to South Dakota

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

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

Currently, September is the cheapest month in which you can book a flight from Seattle to South Dakota (average of $334). Flying from Seattle to South Dakota in December is currently the most expensive (average of $446). 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 SEA to SD?

Find hourly flight availability from Seattle to South Dakota. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

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

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

Reviews of airlines servicing South Dakota

Get insights into the airlines that provide service to South Dakota. 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 South Dakota. Reviews last updated September 11, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Seattle to South Dakota have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

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
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

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!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

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!
Sun Country Air
6.9
Okay
330 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

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!
Frontier
5.8
Fair
3,177 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

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 Seattle to South Dakota. 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 from for flights from Seattle to South Dakota?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl (SEA) is the airport most travelers will use when flying to South Dakota from Seattle.

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

    Airlines like Frontier, Delta, and American Airlines fly from Seattle to South Dakota in about 6h 45m. The time it takes to get you to your destination can typically vary by up to 33h 36m. Seattle and South Dakota are separated by a distance of 954 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 to fly from Seattle to South Dakota one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $124. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Seattle to South Dakota for a low price.

  • What are the most popular routes from Seattle to South Dakota?

    Most travelers choose Seattle/Tacoma Intl - Sioux Falls Joe Foss Field, Seattle/Tacoma Intl - Rapid City or Seattle/Tacoma Intl - Aberdeen when deciding on the best route from Seattle to South Dakota.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Seattle to South Dakota (average of $334). Flying from Seattle to South Dakota in December is currently the most expensive (average of $446). 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

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Alternative routes for Seattle to South Dakota

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Seattle to South Dakota

Discover the top 5 airlines that operate flights from Seattle to South Dakota. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$137Average$443FlexibilityNo cancel feeOn-time83%
FrontierCheapest$184Average$360FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$258Average$405FlexibilityNo cancel feeOn-time71%
DeltaCheapest$258Average$467FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$344Average$564FlexibilityNo cancel feeOn-time69%

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