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$116+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — SEA
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:12 pmFSD - PDX
1 stop7h 47mUnited Airlines
Mon 1/52:45 pmPDX - FSD
1 stop7h 10mUnited Airlines
Deal found 12/16$374
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/207:00 amRAP - GEG
1 stop6h 45mUnited Airlines
Sat 1/244:10 pmGEG - RAP
1 stop5h 19mUnited Airlines
Deal found 12/17$389
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/234:25 pmFSD - SEA
1 stop6h 20mDelta
Thu 1/16:10 amSEA - FSD
1 stop7h 35mDelta
Deal found 12/17$404
This American Airlines deal was found by Cheapflights users on 12/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/203:09 pmFSD - PDX
1 stop7h 45mAmerican Airlines
Fri 1/23:02 pmPDX - FSD
1 stop6h 59mAmerican Airlines
Deal found 12/17$404
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/214:25 pmFSD - PDX
2 stops9h 34mDelta
Thu 1/12:11 pmPDX - FSD
1 stop6h 57mDelta
Deal found 12/17$409
This American Airlines deal was found by Cheapflights users on 12/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/198:11 amFSD - GEG
1 stop7h 25mAmerican Airlines
Mon 12/2212:58 pmGEG - FSD
1 stop9h 01mAmerican Airlines
Deal found 12/16$419
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:00 amFSD - SEA
1 stop7h 45mDelta
Thu 1/16:10 amSEA - FSD
1 stop7h 35mDelta
Deal found 12/17$422
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/225:12 pmFSD - SEA
1 stop8h 00mUnited Airlines
Tue 1/67:00 amSEA - FSD
1 stop8h 18mUnited Airlines
Deal found 12/16$429
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:00 amFSD - SEA
1 stop7h 45mDelta
Wed 1/76:05 amSEA - FSD
1 stop7h 32mDelta
Deal found 12/16$438
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/224:25 pmFSD - SEA
1 stop6h 20mDelta
Tue 12/308:05 amSEA - FSD
1 stop5h 40mDelta
Deal found 12/17$439
This American Airlines deal was found by Cheapflights users on 12/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/213:09 pmFSD - PDX
1 stop7h 45mAmerican Airlines
Thu 1/111:53 amPDX - FSD
1 stop7h 24mAmerican Airlines
Deal found 12/17$439
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/248:50 amFSD - SEA
1 stop7h 08mUnited Airlines
Fri 1/21:55 pmSEA - FSD
1 stop8h 00mUnited Airlines
Deal found 12/17$454

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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$197
(Kiwi.com)

One-way from

$116
(Trip.com)

Popular in

June

Cheapest in

August

Average price

$455
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. 8% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 18, 2025.
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

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Thu 1/15

3:56 pm-11:09 am

1 stop21h 13m

Seattle/Tacoma Intl

Thu 2/19

1:16 pm-12:56 pm

1 stop21h 40m

$197

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Wed 1/14

7:30 am-4:01 pm

1 stop10h 31m

Seattle/Tacoma Intl

Tue 1/20

12:25 pm-8:24 pm

1 stop5h 59m

$257

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Sun 1/18

5:18 pm-9:15 pm

1 stop5h 57m

Seattle/Tacoma Intl

Wed 2/18

7:00 am-5:21 pm

1 stop8h 21m

$257

Sioux FallsPortland

FSD - PDX

FSDPDX

Sioux Falls Joe Foss Field

Fri 1/30

1:02 pm-5:35 pm

1 stop6h 33m

Portland

Tue 2/3

1:53 pm-11:04 pm

1 stop7h 11m

$270

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Fri 1/16

2:25 pm-7:46 pm

1 stop7h 21m

Spokane

Mon 1/19

3:02 pm-11:41 pm

1 stop6h 39m

$279

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Fri 1/9

2:08 pm-10:11 pm

1 stop9h 03m

Portland

Wed 1/14

12:35 pm-9:15 pm

1 stop7h 40m

$279

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Fri 1/9

5:10 am-9:45 am

1 stop5h 35m

Portland

Wed 1/14

1:24 pm-7:14 pm

1 stop4h 50m

$279

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Wed 2/18

1:40 pm-9:07 pm

2 stops9h 27m

Spokane

Wed 2/25

1:44 pm-8:39 pm

1 stop4h 55m

$280

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Fri 1/9

6:00 am-12:46 pm

1 stop7h 46m

Portland

Wed 1/14

1:39 pm-10:28 pm

2 stops7h 49m

$284

Rapid CityPortland

RAP - PDX

RAPPDX

Rapid City

Sat 1/17

5:10 am-9:45 am

1 stop5h 35m

Portland

Tue 1/20

3:45 pm-10:29 pm

1 stop5h 44m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 46 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 $138). Flying from South Dakota to State of Washington in June is currently the most expensive (average of $305). 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.

What is the cheapest time of day to fly from SD to WA?

Find hourly flight availability from South Dakota to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

It’s optimal to fly from South Dakota to State of Washington in the evening. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from South Dakota to State of Washington?

Use this chart to determine the cheapest time to fly round-trip from South Dakota to Washington. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their South Dakota to State of Washington flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 18, 2025.
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
8,005 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

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
8,005 reviews
Delta
7.9
Good
8,005 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

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
9,092 reviews
Delta
7.9
Good
8,005 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

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
11,055 reviews
Delta
7.9
Good
8,005 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

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
5.8
Fair
3,081 reviews
Delta
7.9
Good
8,005 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.1

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 Frontier, United Airlines, and Delta fly from South Dakota to State of Washington in about 6h 33m. The time it takes to get you to your destination can typically vary by up to 14h 40m. The distance between South Dakota and State of Washington is about 1273 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 Sun Country Air, 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 $138). Flying from South Dakota to State of Washington in June is currently the most expensive (average of $305). 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$190Average$285FlexibilityNo cancel feeOn-time62%
DeltaCheapest$208Average$490FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$470FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$254Average$401FlexibilityNo cancel feeOn-time71%

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