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$165+ Cheap flights from South Dakota to Washington

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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — SEA
Apr 16 — Apr 231
Thu 4/16
Thu 4/23
1 adult, Economy
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Cheap flight deals from South Dakota to Washington

Cheapest flights from South Dakota to Washington
Explore the most affordable flight options available from South Dakota to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 17, 2026.

This CheapOair deal was found by Cheapflights users on 3/16. 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.
Fri 4/248:06 pm
FSD
-
SEA
1 stop15h 21m
Frontier
Sun 4/267:12 pm
SEA
-
FSD
1 stop22h 09m
Frontier
Deal found 3/16$221
This Frontier deal was found by Cheapflights users on 3/12. 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.
Mon 4/278:06 pm
FSD
-
PDX
1 stop17h 46m
Frontier
Mon 5/411:58 am
PDX
-
FSD
1 stop5h 13m
Frontier
Deal found 3/12$231
This CheapOair deal was found by Cheapflights users on 3/17. 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.
Fri 4/178:06 pm
FSD
-
PDX
1 stop17h 36m
Frontier
Mon 4/2011:48 am
PDX
-
FSD
1 stop5h 33m
Frontier
Deal found 3/17$241
This Mytrip deal was found by Cheapflights users on 3/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:06 pm
FSD
-
SEA
1 stop15h 21m
Frontier
Thu 4/307:12 pm
SEA
-
FSD
1 stop22h 09m
Frontier
Deal found 3/14$269
This Mytrip deal was found by Cheapflights users on 3/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/37:21 pm
FSD
-
SEA
1 stop18h 16m
Frontier
Thu 4/912:42 pm
SEA
-
FSD
1 stop27h 49m
Frontier
Deal found 3/14$280
This CheapOair deal was found by Cheapflights users on 3/14. 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.
Wed 5/277:18 pm
FSD
-
PDX
1 stop23h 28m
Frontier
Sun 5/3112:35 pm
PDX
-
FSD
1 stop25h 09m
Frontier
Deal found 3/14$281
This American Airlines deal was found by Cheapflights users on 3/14. 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 4/221:41 pm
FSD
-
PDX
1 stop9h 57m
American Airlines
Wed 4/293:28 pm
PDX
-
FSD
1 stop6h 31m
American Airlines
Deal found 3/14$291
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Wed 4/152:35 pm
FSD
-
PDX
1 stop20h 24m
Multiple Airlines
Tue 4/2112:38 pm
PDX
-
FSD
2 stops23h 07m
Multiple Airlines
Deal found 3/13$292
This Delta deal was found by Cheapflights users on 3/12. 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.
Sat 4/251:44 pm
FSD
-
PDX
2 stops10h 37m
Delta
Mon 4/2712:30 am
PDX
-
FSD
1 stop7h 42m
Delta
Deal found 3/12$296
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Fri 4/248:06 pm
FSD
-
PDX
1 stop17h 36m
Multiple Airlines
Tue 4/2812:38 pm
PDX
-
FSD
2 stops23h 07m
Multiple Airlines
Deal found 3/12$303
This United Airlines deal was found by Cheapflights users on 3/12. 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 4/224:15 pm
RAP
-
GEG
1 stop5h 56m
United Airlines
Tue 4/285:05 am
GEG
-
RAP
1 stop5h 19m
United Airlines
Deal found 3/12$309
This American Airlines deal was found by Cheapflights users on 3/12. 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 4/163:17 pm
FSD
-
PDX
1 stop9h 39m
American Airlines
Tue 4/216:00 am
PDX
-
FSD
1 stop8h 58m
American Airlines
Deal found 3/12$310

Find flight deals from South Dakota to Washington

Keep the following information in mind while searching for South Dakota to Washington flight deals. Data was last updated March 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$221
(CheapOair)

One-way from

$165
(Mytrip)

Popular in

May

Cheapest in

January

Average price

$511
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Seattle/Tacoma Intl flights.
Search Deals
From South Dakota to Washington
Search Deals
One-way flight from South Dakota to Washington
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($87 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from South Dakota to Washington 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 March 17, 2026.
Use the filters below to find and compare flights from South Dakota to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Fri 4/24

6:00 am-9:46 am

1 stop5h 46m

Seattle/Tacoma Intl

Mon 4/27

11:59 pm-10:42 am

1 stop8h 43m

$329

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sat 5/30

5:00 am-9:47 am

1 stop5h 47m

Portland

Wed 6/3

12:50 pm-7:13 pm

1 stop5h 23m

$339

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Thu 4/30

5:20 am-9:38 am

1 stop5h 18m

Portland

Tue 5/5

5:00 am-11:35 am

1 stop5h 35m

$339

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Tue 4/7

12:00 pm-6:00 pm

1 stop7h 00m

Seattle/Tacoma Intl

Tue 4/14

3:48 pm-10:28 pm

1 stop5h 40m

$339

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Tue 8/25

1:20 pm-11:44 pm

2 stops12h 24m

Spokane

Sat 8/29

6:05 am-3:28 pm

1 stop7h 23m

$344

Sioux FallsPasco

FSD - PSC

FSDPSC

Sioux Falls Joe Foss Field

Sat 9/12

6:00 am-12:15 pm

2 stops8h 15m

Pasco Tri Cities

Wed 9/23

12:45 pm-8:04 pm

1 stop5h 19m

$353

Sioux FallsPortland

FSD - PDX

FSDPDX

Sioux Falls Joe Foss Field

Fri 4/17

4:17 pm-8:07 pm

1 stop5h 50m

Portland

Mon 4/20

7:32 pm-10:12 am

2 stops12h 40m

$354

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Tue 4/7

6:47 am-12:32 pm

1 stop7h 45m

Spokane

Sun 4/26

1:22 pm-11:11 pm

1 stop7h 49m

$359

Sioux FallsPasco

FSD - PSC

FSDPSC

Sioux Falls Joe Foss Field

Sat 9/12

8:00 am-1:04 pm

1 stop7h 04m

Pasco Tri Cities

Wed 9/23

3:47 pm-11:52 pm

1 stop6h 05m

$367

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Thu 5/21

5:00 am-9:47 am

1 stop5h 47m

Portland

Mon 5/25

5:00 am-12:29 pm

1 stop6h 29m

$367

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/15

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from South Dakota to Washington

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

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

Currently, January is the cheapest month in which you can book a flight from South Dakota to State of Washington (average of $188). Flying from South Dakota to State of Washington in June is currently the most expensive (average of $287). 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 South Dakota to State of Washington?

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated March 17, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines from South Dakota to Washington by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,288 reviews

Comfort

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Overall

7.9

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
8,288 reviews
Delta
7.9
Good
8,288 reviews

Comfort

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Overall

7.9

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
9,431 reviews
Delta
7.9
Good
8,288 reviews

Comfort

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Overall

7.9

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
7.1
Good
11,466 reviews
Delta
7.9
Good
8,288 reviews

Comfort

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Overall

7.9

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
3,027 reviews
Delta
7.9
Good
8,288 reviews

Comfort

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Overall

7.9

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 South Dakota to Washington. 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 South Dakota to State of Washington?

    Airlines like United Airlines, Delta, and American Airlines fly from South Dakota to State of Washington in about 5h 46m. The time it takes to get you to your destination can typically vary by up to 6h 38m. The distance between South Dakota and State of Washington is about 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 South Dakota to State of Washington one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $101. However, be on the lookout for offers from Sun Country Air and American Airlines, as they are both options that can get you from South Dakota to State of Washington for a low price.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from South Dakota to State of Washington (average of $188). Flying from South Dakota to State of Washington in June is currently the most expensive (average of $287). 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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Top 4 airlines flying from South Dakota to Washington

Discover the top 4 airlines that operate flights from South Dakota to Washington. 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 March 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$190Average$283FlexibilityNo cancel feeOn-time62%
DeltaCheapest$228Average$538FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$240Average$447FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$254Average$396FlexibilityNo cancel feeOn-time71%

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