South Dakota

$248+ Cheap flights from Seattle (SEA) to South Dakota

SEA — FSD
Nov 29 — Dec 61
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Cheap flight deals from Seattle to South Dakota

Cheapest flights from Seattle to South Dakota

Wed 12/94:58 pm -
2 stops27h 00m
Sun 12/139:48 pm -
1 stop15h 28m
Deal found 10/29$348
Tue 12/84:04 pm -
1 stop5h 25m
Sat 12/1212:18 pm -
1 stop7h 06m
Deal found 10/29$349
Fri 12/116:00 am -
1 stop8h 20m
Mon 12/1412:59 pm -
1 stop6h 11m
Deal found 10/28$359
Fri 12/112:05 pm -
1 stop7h 25m
Mon 12/149:24 am -
2 stops8h 58m
Deal found 10/28$364
Fri 11/203:49 pm -
1 stop5h 41m
Mon 11/235:00 am -
1 stop5h 47m
Deal found 10/28$365
Fri 11/275:05 am -
1 stop5h 30m
Mon 12/77:40 am -
1 stop10h 38m
Deal found 10/28$373
Thu 11/126:00 am -
1 stop8h 54m
Mon 11/164:36 pm -
1 stop8h 21m
Deal found 10/27$399
Wed 11/113:49 pm -
1 stop5h 52m
Sun 11/155:08 pm -
1 stop8h 07m
Deal found 10/27$404
Wed 11/252:30 pm -
1 stop6h 59m
Wed 12/26:00 am -
2 stops10h 23m
Deal found 10/28$410
Thu 11/122:30 pm -
1 stop6h 59m
Tue 11/171:20 pm -
1 stop6h 37m
Deal found 10/29$429
Fri 11/276:00 am -
1 stop8h 54m
Wed 12/24:36 pm -
1 stop8h 17m
Deal found 10/28$431
Thu 11/122:30 pm -
1 stop6h 59m
Sun 11/155:55 am -
2 stops8h 25m
Deal found 10/29$434

Find flight deals from Seattle to South Dakota

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$348
(Kiwi.com)

One-way from

$248
(Kiwi.com)

Popular in

May

Cheapest in

March

Average price

$553
Provider with most accurate pricing for Seattle/Tacoma Intl-Sioux Falls Joe Foss Field flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Sioux Falls Joe Foss Field flights.
From Seattle/Tacoma Intl to South Dakota
One-way flight from Seattle/Tacoma Intl to South Dakota
Highest demand for flights based on searches. 19% potential increase in price ($122 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Average for round-trip flights in October 2026

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleRapid City

SEA Seattle/Tacoma Intl - RAP Rapid City

SEARAP

Seattle/Tacoma Intl

Thu 11/19

10:50 am-9:06 pm

2 stops9h 16m

Rapid City

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$248

SeattleRapid City

SEA Seattle/Tacoma Intl - RAP Rapid City

SEARAP

Seattle/Tacoma Intl

Fri 4/23

6:05 am-3:46 pm

1 stop8h 41m

Rapid City

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$273

SeattleSioux Falls

SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field

SEAFSD

Seattle/Tacoma Intl

Thu 11/5

9:13 pm-9:41 pm

1 stop22h 28m

Sioux Falls Joe Foss Field

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$273

SeattleRapid City

SEA Seattle/Tacoma Intl - RAP Rapid City

SEARAP

Seattle/Tacoma Intl

Wed 11/18

4:27 pm-9:06 pm

2 stops27h 39m

Rapid City

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$275

SeattleSioux Falls

SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field

SEAFSD

Seattle/Tacoma Intl

Mon 12/7

8:56 pm-3:47 pm

1 stop16h 51m

Sioux Falls Joe Foss Field

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$283
Quickest round-trip

SeattleRapid City

SEA Seattle/Tacoma Intl - RAP Rapid City

SEARAP

Seattle/Tacoma Intl

Thu 11/19

5:05 am-11:58 am

1 stop5h 53m

Rapid City

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$303

SeattleRapid City

SEA Seattle/Tacoma Intl - RAP Rapid City

SEARAP

Seattle/Tacoma Intl

Sat 4/24

6:05 am-3:46 pm

1 stop8h 41m

Rapid City

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$303

SeattleSioux Falls

SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field

SEAFSD

Seattle/Tacoma Intl

Thu 3/25

6:05 am-3:50 pm

1 stop7h 45m

Sioux Falls Joe Foss Field

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$313

SeattleRapid City

SEA Seattle/Tacoma Intl - RAP Rapid City

SEARAP

Seattle/Tacoma Intl

Thu 4/22

6:29 am-7:08 pm

2 stops11h 39m

Rapid City

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$327

SeattleSioux Falls

SEA Seattle/Tacoma Intl - FSD Sioux Falls Joe Foss Field

SEAFSD

Seattle/Tacoma Intl

Sun 12/20

6:25 pm-9:03 pm

1 stop24h 38m

Sioux Falls Joe Foss Field

Wed 12/31

12:00 am-10:00 pm

Nonstop0h 00m

$335

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 38 resultsSorted by cheapest first
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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

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, January is the cheapest month in which you can book a flight from Seattle to South Dakota (average of $396). Flying from Seattle to South Dakota in June is currently the most expensive (average of $627). 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 Seattle to South Dakota?

Airfare is typical for this route at the moment.
Seattle to South Dakota flights typically cost between $338 and $495 in December.
The cheapest round-trip price found within the last 5 days was $359 on Delta (Dec 11-Dec 14).

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

The best time to book flights from Seattle to South Dakota is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing South Dakota

See what other customers who have flown with Delta,United Airlines, andAmerican 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.

Entertainment

7.8

Overall

7.8

Boarding

8.1

Food

7.2

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Entertainment

7.8

Overall

7.8

Boarding

8.1

Food

7.2

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Entertainment

7.8

Overall

7.8

Boarding

8.1

Food

7.2

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Entertainment

7.8

Overall

7.8

Boarding

8.1

Food

7.2

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

  • 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 Delta, United Airlines, and American Airlines fly from Seattle to South Dakota in about 8h 41m. The time it takes to get you to your destination can typically vary by up to 55m. 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 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, January is the cheapest month in which you can book a flight from Seattle to South Dakota (average of $396). Flying from Seattle to South Dakota in June is currently the most expensive (average of $627). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Seattle to South Dakota

Top 3 airlines flying from Seattle to South Dakota

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$190Average$468FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$289Average$468FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$303Average$547FlexibilityNo cancel feeOn-time69%

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