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South Dakota

$148+ Cheap flights from Seattle (SEA) to South Dakota

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FSD
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap 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 January 28, 2026.

This Frontier deal was found by Cheapflights users on 1/27. 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 2/191:16 pm
SEA
-
FSD
1 stop21h 40m
Frontier
Thu 2/262:16 pm
FSD
-
SEA
1 stop22h 39m
Frontier
Deal found 1/27$148
This CheapOair deal was found by Cheapflights users on 1/27. 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.
Thu 2/261:16 pm
SEA
-
FSD
1 stop21h 40m
Frontier
Thu 3/52:16 pm
FSD
-
SEA
1 stop23h 03m
Frontier
Deal found 1/27$194
This United Airlines deal was found by Cheapflights users on 1/26. 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 2/265:00 am
SEA
-
RAP
1 stop7h 13m
United Airlines
Sat 2/282:52 pm
RAP
-
SEA
1 stop7h 20m
United Airlines
Deal found 1/26$279
This American Airlines deal was found by Cheapflights users on 1/27. 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 3/117:21 am
SEA
-
FSD
1 stop9h 49m
American Airlines
Wed 3/185:21 pm
FSD
-
SEA
1 stop9h 34m
American Airlines
Deal found 1/27$289
This Delta deal was found by Cheapflights users on 1/26. 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 2/203:30 pm
SEA
-
RAP
1 stop5h 57m
Delta
Tue 2/246:00 am
RAP
-
SEA
1 stop7h 23m
Delta
Deal found 1/26$294
This United Airlines deal was found by Cheapflights users on 1/26. 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 2/108:40 am
SEA
-
RAP
1 stop5h 42m
United Airlines
Sat 2/145:20 am
RAP
-
SEA
1 stop5h 29m
United Airlines
Deal found 1/26$309
This Delta deal was found by Cheapflights users on 1/26. 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 2/103:35 pm
SEA
-
FSD
1 stop5h 29m
Delta
Sat 2/144:19 pm
FSD
-
SEA
1 stop6h 27m
Delta
Deal found 1/26$339
This American Airlines deal was found by Cheapflights users on 1/26. 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 4/15:30 am
SEA
-
RAP
1 stop7h 21m
American Airlines
Wed 4/84:54 pm
RAP
-
SEA
1 stop8h 50m
American Airlines
Deal found 1/26$343
This United Airlines deal was found by Cheapflights users on 1/26. 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 2/105:00 am
SEA
-
FSD
2 stops10h 18m
United Airlines
Sat 2/145:00 pm
FSD
-
SEA
1 stop6h 12m
United Airlines
Deal found 1/26$344
This American Airlines deal was found by Cheapflights users on 1/27. 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.
Fri 2/275:37 am
SEA
-
RAP
1 stop7h 14m
American Airlines
Tue 3/32:21 pm
RAP
-
SEA
1 stop8h 03m
American Airlines
Deal found 1/27$349
This United Airlines deal was found by Cheapflights users on 1/26. 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 2/275:00 am
SEA
-
RAP
1 stop7h 13m
United Airlines
Tue 3/35:20 am
RAP
-
SEA
2 stops12h 01m
United Airlines
Deal found 1/26$354
This United Airlines deal was found by Cheapflights users on 1/27. 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 6/92:36 pm
SEA
-
RAP
1 stop6h 48m
United Airlines
Fri 6/125:53 pm
RAP
-
SEA
1 stop6h 16m
United Airlines
Deal found 1/27$358

Find 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 January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$148
(Frontier)

Popular in

April

Cheapest in

October

Average price

$479
Provider with most accurate pricing for Seattle/Tacoma Intl-Sioux Falls Joe Foss Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Sioux Falls Joe Foss Field flights.
Search Deals
From Seattle/Tacoma Intl to South Dakota
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($92 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 28, 2026.
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

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 2/26

5:00 am-1:13 pm

1 stop7h 13m

Rapid City

Tue 3/3

2:52 pm-9:12 pm

1 stop7h 20m

$279

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 2/26

5:00 am-1:13 pm

1 stop7h 13m

Rapid City

Thu 3/5

5:41 pm-10:59 pm

1 stop6h 18m

$279

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 2/25

5:00 am-1:13 pm

1 stop7h 13m

Rapid City

Wed 3/4

5:40 pm-10:59 pm

1 stop6h 19m

$279

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Thu 2/26

5:00 am-1:13 pm

1 stop7h 13m

Rapid City

Sat 2/28

2:52 pm-9:12 pm

1 stop7h 20m

$279

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Fri 2/20

3:30 pm-10:27 pm

1 stop5h 57m

Rapid City

Tue 2/24

6:00 am-12:23 pm

1 stop7h 23m

$294

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Tue 2/10

3:35 pm-11:04 pm

1 stop5h 29m

Sioux Falls Joe Foss Field

Sat 2/14

4:19 pm-8:46 pm

1 stop6h 27m

$339

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

Wed 4/1

5:30 am-1:51 pm

1 stop7h 21m

Rapid City

Wed 4/8

4:54 pm-12:44 am

1 stop8h 50m

$343

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Tue 2/10

5:00 am-5:18 pm

2 stops10h 18m

Sioux Falls Joe Foss Field

Sat 2/14

5:00 pm-9:12 pm

1 stop6h 12m

$344

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Wed 3/11

7:15 am-8:40 pm

2 stops11h 25m

Sioux Falls Joe Foss Field

Wed 3/18

9:00 am-6:40 pm

2 stops11h 40m

$380

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Fri 2/6

6:05 am-3:34 pm

1 stop7h 29m

Sioux Falls Joe Foss Field

Tue 2/10

4:18 pm-8:46 pm

1 stop6h 28m

$384

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 29 results
1
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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, March is the cheapest month in which you can book a flight from Seattle to South Dakota (average of $163). Flying from Seattle to South Dakota in May is currently the most expensive (average of $325). 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?

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 January 28, 2026.
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
7.9
Good
8,120 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,120 reviews
Delta
7.9
Good
8,120 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,205 reviews
Delta
7.9
Good
8,120 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,199 reviews
Delta
7.9
Good
8,120 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Sun Country Air
6.9
Okay
343 reviews
Delta
7.9
Good
8,120 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Frontier
5.7
Fair
3,056 reviews
Delta
7.9
Good
8,120 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 United Airlines and Delta fly from Seattle to South Dakota in about 5h 29m. The time it takes to get you to your destination can typically vary by up to 1h 44m. Seattle and South Dakota are separated by a distance of 1259 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 Delta, with whom users have recently found tickets for as low as $104. However, be on the lookout for offers from Frontier 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, March is the cheapest month in which you can book a flight from Seattle to South Dakota (average of $163). Flying from Seattle to South Dakota in May is currently the most expensive (average of $325). 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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Sun Country AirCheapest$137Average$443FlexibilityNo cancel feeOn-time83%
FrontierCheapest$188Average$360FlexibilityNo cancel feeOn-time62%
DeltaCheapest$209Average$447FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$366FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$286Average$494FlexibilityNo cancel feeOn-time69%

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