South Dakota

$109+ 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FSD
Aug 5 — Aug 121
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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 July 31, 2025.

Round-trip from

$238
(Frontier)

One-way from

$109
(Frontier)

Popular in

December

Cheapest in

January

Average price

$470
From Seattle/Tacoma Intl to South Dakota
One-way flight from Seattle/Tacoma Intl to South Dakota
Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in July 2025

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 July 31, 2025.

This Frontier deal was found by Cheapflights users on 7/31. 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.
Thu 8/216:17 amSEA - FSD
1 stop5h 06mFrontier
Thu 8/282:08 pmFSD - SEA
1 stop12h 26mFrontier
Deal found 7/31$238
This Delta deal was found by Cheapflights users on 7/30. 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 10/86:00 amSEA - RAP
1 stop6h 45mDelta
Tue 10/144:34 pmRAP - SEA
1 stop8h 23mDelta
Deal found 7/30$259
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/301:05 pmSEA - RAP
2 stops7h 54mUnited Airlines
Thu 9/45:59 pmRAP - SEA
1 stop6h 00mUnited Airlines
Deal found 7/30$264
This Delta deal was found by Cheapflights users on 7/29. 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.
Tue 8/2611:55 pmSEA - FSD
1 stop8h 24mDelta
Tue 9/25:00 amFSD - SEA
1 stop5h 48mDelta
Deal found 7/29$269
This Sun Country Air deal was found by Cheapflights users on 7/30. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1411:59 pmSEA - RAP
1 stop15h 28mSun Country Air
Mon 8/185:09 pmRAP - SEA
1 stop18h 59mSun Country Air
Deal found 7/30$335
This American Airlines deal was found by Cheapflights users on 7/29. 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 8/2512:46 amSEA - FSD
1 stop9h 31mAmerican Airlines
Tue 9/22:35 pmFSD - SEA
1 stop7h 59mAmerican Airlines
Deal found 7/29$354
This United Airlines deal was found by Cheapflights users on 7/29. 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 9/135:02 amSEA - FSD
2 stops10h 27mUnited Airlines
Sat 9/279:30 amFSD - SEA
2 stops11h 15mUnited Airlines
Deal found 7/29$359
This American Airlines deal was found by Cheapflights users on 7/31. 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 10/17:48 amSEA - RAP
1 stop7h 16mAmerican Airlines
Mon 10/64:28 pmRAP - SEA
1 stop7h 31mAmerican Airlines
Deal found 7/31$390
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1212:59 amSEA - FSD
1 stop8h 50mAlaska Airlines
Sat 9/276:00 amFSD - SEA
1 stop8h 34mAlaska Airlines
Deal found 7/29$409
This Delta deal was found by Cheapflights users on 7/31. 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 8/156:10 amSEA - ABR
1 stop6h 02mDelta
Tue 8/196:25 amABR - SEA
1 stop8h 00mDelta
Deal found 7/31$748

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 July 31, 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

Thu 8/21

6:17 am-1:23 pm

1 stop5h 06m

Sioux Falls Joe Foss Field

Thu 8/28

2:08 pm-12:34 am

1 stop12h 26m

$238

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 10/8

6:00 am-1:45 pm

1 stop6h 45m

Rapid City

Tue 10/14

4:34 pm-11:57 pm

1 stop8h 23m

$259

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Sat 8/30

1:05 pm-9:59 pm

2 stops7h 54m

Rapid City

Thu 9/4

5:59 pm-10:59 pm

1 stop6h 00m

$264

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Tue 8/26

11:55 pm-10:19 am

1 stop8h 24m

Sioux Falls Joe Foss Field

Tue 9/2

5:00 am-8:48 am

1 stop5h 48m

$269

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 8/14

11:59 pm-4:27 pm

1 stop15h 28m

Rapid City

Mon 8/18

5:09 pm-11:08 am

1 stop18h 59m

$335

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Mon 8/25

12:46 am-12:17 pm

1 stop9h 31m

Sioux Falls Joe Foss Field

Tue 9/2

2:35 pm-8:34 pm

1 stop7h 59m

$354

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Sat 9/13

5:02 am-5:29 pm

2 stops10h 27m

Sioux Falls Joe Foss Field

Sat 9/27

9:30 am-6:45 pm

2 stops11h 15m

$359

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 10/1

7:48 am-4:04 pm

1 stop7h 16m

Rapid City

Mon 10/6

4:28 pm-10:59 pm

1 stop7h 31m

$390

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Fri 9/12

12:59 am-11:49 am

1 stop8h 50m

Sioux Falls Joe Foss Field

Sat 9/27

6:00 am-12:34 pm

1 stop8h 34m

$409

SeattleAberdeen

SEA - ABR

SEAABR

Seattle/Tacoma Intl

Fri 8/15

6:10 am-2:12 pm

1 stop6h 02m

Aberdeen

Tue 8/19

6:25 am-12:25 pm

1 stop8h 00m

$748

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 20 results
1
2

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 July 31, 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.

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 July 31, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and United 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.

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
8.0
Very good

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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.

  • 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 $109. However, be on the lookout for offers from Sun Country Air and Delta, 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?

  • 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.

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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$128Average$346FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$137Average$443FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$258Average$410FlexibilityNo cancel feeOn-time71%
DeltaCheapest$258Average$483FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$346Average$571FlexibilityNo cancel feeOn-time69%

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