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$102+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — SEA
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 January 29, 2026.

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.
Wed 2/258:30 am
RAP
-
GEG
1 stop5h 12m
United Airlines
Wed 3/45:00 am
GEG
-
RAP
1 stop5h 12m
United Airlines
Deal found 1/27$269
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/262:16 pm
FSD
-
SEA
1 stop22h 39m
Multiple Airlines
Sun 3/19:23 pm
SEA
-
FSD
1 stop12h 31m
Multiple Airlines
Deal found 1/26$271
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.
Thu 2/266:00 am
RAP
-
GEG
1 stop8h 08m
Delta
Thu 3/511:22 am
GEG
-
RAP
2 stops10h 05m
Delta
Deal found 1/27$274
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.
Tue 8/257:04 am
FSD
-
GEG
1 stop6h 48m
American Airlines
Sat 8/296:00 am
GEG
-
FSD
1 stop8h 35m
American Airlines
Deal found 1/27$279
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/195:40 pm
RAP
-
PDX
1 stop6h 34m
United Airlines
Thu 2/265:05 am
PDX
-
RAP
1 stop7h 08m
United Airlines
Deal found 1/28$279
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.
Wed 4/222:42 pm
RAP
-
SEA
1 stop7h 24m
United Airlines
Tue 4/285:00 am
SEA
-
RAP
1 stop7h 08m
United Airlines
Deal found 1/27$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 2/116:00 am
RAP
-
GEG
1 stop8h 03m
Delta
Sun 2/156:45 am
GEG
-
RAP
1 stop7h 59m
Delta
Deal found 1/27$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 2/256:00 am
RAP
-
GEG
1 stop8h 08m
Delta
Wed 3/41:25 pm
GEG
-
RAP
2 stops8h 02m
Delta
Deal found 1/27$284
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.
Tue 3/101:22 pm
FSD
-
SEA
1 stop8h 03m
American Airlines
Mon 3/1612:59 am
SEA
-
FSD
1 stop9h 38m
American Airlines
Deal found 1/27$289
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 4/223:21 pm
FSD
-
PDX
1 stop10h 20m
American Airlines
Mon 4/2711:59 pm
PDX
-
FSD
1 stop9h 43m
American Airlines
Deal found 1/27$289
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.
Wed 5/66:00 am
FSD
-
SEA
1 stop5h 40m
United Airlines
Sun 5/107:08 am
SEA
-
FSD
2 stops11h 12m
United Airlines
Deal found 1/27$294
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.
Sat 9/191:20 pm
FSD
-
PDX
2 stops12h 33m
Delta
Mon 9/2112:40 am
PDX
-
FSD
1 stop7h 20m
Delta
Deal found 1/27$294

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$269
(United Airlines)

One-way from

$102
(CheapOair)

Popular in

June

Cheapest in

August

Average price

$344
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. 12% potential increase in price ($54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($16 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 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 January 29, 2026.
Use the filters below to find and compare flights from South Dakota to Washington that are best for you.

Fly from

South Dakota

Fly to

Washington

Route

Depart

Return

Price

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Thu 2/26

7:00 am-12:42 pm

1 stop6h 42m

Spokane

Thu 3/5

5:00 am-1:13 pm

1 stop7h 13m

$269

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Wed 2/25

8:30 am-12:42 pm

1 stop5h 12m

Spokane

Wed 3/4

5:00 am-11:12 am

1 stop5h 12m

$269

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Thu 2/26

6:00 am-1:08 pm

1 stop8h 08m

Spokane

Thu 3/5

11:22 am-10:27 pm

2 stops10h 05m

$274

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Fri 3/13

8:00 am-1:10 pm

1 stop7h 10m

Spokane

Tue 3/17

2:15 pm-11:04 pm

1 stop6h 49m

$279

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Thu 2/19

5:40 pm-11:14 pm

1 stop6h 34m

Portland

Thu 2/26

5:05 am-1:13 pm

1 stop7h 08m

$279

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Wed 2/11

6:00 am-1:03 pm

1 stop8h 03m

Spokane

Sun 2/15

6:45 am-3:44 pm

1 stop7h 59m

$279

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Wed 4/29

7:00 am-2:46 pm

2 stops8h 46m

Seattle/Tacoma Intl

Tue 5/5

5:05 am-11:35 am

1 stop5h 30m

$284

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Wed 2/25

6:00 am-1:08 pm

1 stop8h 08m

Spokane

Wed 3/4

1:25 pm-10:27 pm

2 stops8h 02m

$284

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Wed 4/22

12:00 pm-8:57 pm

2 stops9h 57m

Seattle/Tacoma Intl

Tue 4/28

3:48 pm-10:28 pm

1 stop5h 40m

$284

Sioux FallsPortland

FSD - PDX

FSDPDX

Sioux Falls Joe Foss Field

Wed 4/22

3:21 pm-11:41 pm

1 stop10h 20m

Portland

Mon 4/27

11:59 pm-11:42 am

1 stop9h 43m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 60 results
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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, March is the cheapest month in which you can book a flight from South Dakota to State of Washington (average of $144). Flying from South Dakota to State of Washington in June is currently the most expensive (average of $304). 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 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 January 29, 2026.
Get a feel of what it's like to fly with Delta, United Airlines, and American 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
8,127 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.
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 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 6h 42m. The time it takes to get you to your destination can typically vary by up to 3h 38m. The distance between South Dakota and State of Washington is about 738 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 Delta and United 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, March is the cheapest month in which you can book a flight from South Dakota to State of Washington (average of $144). Flying from South Dakota to State of Washington in June is currently the most expensive (average of $304). 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 South Dakota to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$190Average$283FlexibilityNo cancel feeOn-time62%
DeltaCheapest$228Average$491FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$240Average$474FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$254Average$403FlexibilityNo cancel feeOn-time71%

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