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South Dakota

$95+ Cheap flights from Washington 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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FSD
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Washington to South Dakota

Cheapest flights from Washington to South Dakota
Explore the most affordable flight options available from Washington to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 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 Delta deal was found by Cheapflights users on 1/28. 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 2/1712:40 am
PDX
-
FSD
1 stop7h 28m
Delta
Tue 2/244:19 pm
FSD
-
PDX
1 stop6h 11m
Delta
Deal found 1/28$251
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 2/247:00 am
GEG
-
FSD
1 stop8h 21m
United Airlines
Tue 3/35:00 pm
FSD
-
GEG
1 stop6h 17m
United Airlines
Deal found 1/27$251
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/269:28 am
SEA
-
FSD
2 stops24h 26m
Multiple Airlines
Thu 3/52:16 pm
FSD
-
SEA
1 stop23h 03m
Multiple Airlines
Deal found 1/28$254
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 2/2512:25 pm
GEG
-
FSD
1 stop8h 38m
American Airlines
Mon 3/26:45 am
FSD
-
GEG
1 stop6h 59m
American Airlines
Deal found 1/26$265
This United Airlines deal was found by Cheapflights users on 1/29. 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.
Fri 2/205:00 am
PSC
-
RAP
1 stop7h 13m
United Airlines
Tue 2/242:52 pm
RAP
-
PSC
1 stop6h 58m
United Airlines
Deal found 1/29$269
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/312:40 am
PDX
-
FSD
1 stop7h 28m
Delta
Wed 3/118:00 am
FSD
-
PDX
1 stop6h 48m
Delta
Deal found 1/27$270
This American Airlines deal was found by Cheapflights users on 1/28. 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 3/21:52 pm
PDX
-
RAP
1 stop7h 59m
American Airlines
Mon 3/92:21 pm
RAP
-
PDX
1 stop8h 41m
American Airlines
Deal found 1/28$279
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/116:30 am
GEG
-
RAP
1 stop7h 55m
Delta
Sun 2/156:00 am
RAP
-
GEG
1 stop8h 08m
Delta
Deal found 1/27$279
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.
Wed 2/255:00 am
SEA
-
RAP
1 stop7h 13m
United Airlines
Wed 3/45:40 pm
RAP
-
SEA
1 stop6h 19m
United Airlines
Deal found 1/26$279
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.
Thu 2/2612:25 pm
GEG
-
FSD
1 stop8h 38m
American Airlines
Mon 3/26:45 am
FSD
-
GEG
1 stop6h 59m
American Airlines
Deal found 1/26$279

Find flight deals from Washington to South Dakota

Keep the following information in mind while searching for Washington to South Dakota flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$148
(Frontier)

One-way from

$95
(Kiwi.com)

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 Washington to South Dakota
Search Deals
One-way flight from Washington 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 Washington 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 29, 2026.
Use the filters below to find and compare flights from Washington to South Dakota that are best for you.

Fly from

Washington

Fly to

South Dakota

Route

Depart

Return

Price

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Thu 2/19

1:16 pm-12:56 pm

1 stop21h 40m

Sioux Falls Joe Foss Field

Thu 2/26

2:16 pm-11:25 am

2 stops23h 09m

$243

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Tue 2/17

12:40 am-10:08 am

1 stop7h 28m

Sioux Falls Joe Foss Field

Tue 2/24

4:19 pm-8:30 pm

1 stop6h 11m

$251

SpokaneSioux Falls

GEG - FSD

GEGFSD

Spokane

Tue 2/24

7:00 am-5:21 pm

1 stop8h 21m

Sioux Falls Joe Foss Field

Tue 3/3

5:00 pm-9:17 pm

1 stop6h 17m

$251

SpokaneSioux Falls

GEG - FSD

GEGFSD

Spokane

Wed 2/25

12:25 pm-11:03 pm

1 stop8h 38m

Sioux Falls Joe Foss Field

Mon 3/2

6:45 am-11:44 am

1 stop6h 59m

$265

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Thu 3/5

5:05 am-1:13 pm

1 stop7h 08m

Rapid City

Mon 3/9

5:00 am-9:54 am

1 stop5h 54m

$279

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Wed 2/11

6:30 am-3:25 pm

1 stop7h 55m

Rapid City

Sun 2/15

6:00 am-1:08 pm

1 stop8h 08m

$279

SpokaneSioux Falls

GEG - FSD

GEGFSD

Spokane

Thu 2/26

12:25 pm-11:03 pm

1 stop8h 38m

Sioux Falls Joe Foss Field

Mon 3/2

6:45 am-11:44 am

1 stop6h 59m

$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

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Wed 3/4

12:40 am-10:09 am

1 stop8h 29m

Rapid City

Mon 3/9

4:01 pm-11:54 pm

2 stops8h 53m

$284

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 60 results
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Best time to book a flight from Washington to South Dakota

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

What is the cheapest month to book a flight from State of Washington to South Dakota?

Currently, March is the cheapest month in which you can book a flight from State of Washington to South Dakota (average of $99). Flying from State of Washington to South Dakota in January is currently the most expensive (average of $283). 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.

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 29, 2026.
Read through reviews of airlines operating flights from Washington to South Dakota, such as Delta, United Airlines, and American Airlines. 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
8,127 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

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
8,127 reviews
Delta
7.9
Good
8,127 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

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
9,215 reviews
Delta
7.9
Good
8,127 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

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
11,206 reviews
Delta
7.9
Good
8,127 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

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
8,127 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

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
8,127 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

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 Washington to South Dakota. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from State of Washington to South Dakota?

    Frontier, Delta, and United Airlines can get you from State of Washington to South Dakota in just under 7h 28m. Your travel time can differ by up to 14h 12m. The distance between State of Washington and South Dakota is about 1273 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from State of Washington to South Dakota one-way?

    The cheapest airlines for a one-way flight from State of Washington to South Dakota are Delta ($104), Frontier ($111), and United Airlines ($125).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to South Dakota?

    Currently, March is the cheapest month in which you can book a flight from State of Washington to South Dakota (average of $99). Flying from State of Washington to South Dakota in January is currently the most expensive (average of $283). 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 Washington 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 Washington to South Dakota

Discover the top 5 airlines that operate flights from Washington 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 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$99Average$417FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$137Average$443FlexibilityNo cancel feeOn-time83%
FrontierCheapest$188Average$360FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$252Average$459FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$254Average$327FlexibilityNo cancel feeOn-time71%

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