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$105+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — SEA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap 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 October 30, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$194
(Booking.com)

One-way from

$105
(Kiwi.com)

Popular in

March

Cheapest in

August

Average price

$376
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Seattle/Tacoma Intl flights.
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From South Dakota to Washington
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One-way flight from South Dakota to Washington
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Highest demand for flights based on searches. 9% potential increase in price ($46 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 October 30, 2025.

This Booking.com deal was found by Cheapflights users on 10/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/92:18 pmFSD - SEA
1 stop23h 55mFrontier
Wed 11/121:37 pmSEA - FSD
1 stop21h 51mFrontier
Deal found 10/29$194
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2010:10 pmRAP - SEA
1 stop16h 12mMultiple Airlines
Mon 11/249:53 pmSEA - RAP
1 stop10h 50mMultiple Airlines
Deal found 10/29$195
This Booking.com deal was found by Cheapflights users on 10/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/142:27 pmFSD - PDX
1 stop23h 29mFrontier
Sun 11/163:26 pmPDX - FSD
1 stop20h 21mFrontier
Deal found 10/28$226
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Sun 12/2110:20 pmRAP - SEA
1 stop12h 51mMultiple Airlines
Mon 12/227:48 pmSEA - RAP
1 stop11h 26mMultiple Airlines
Deal found 10/28$233
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/218:38 pmRAP - SEA
1 stop20h 59mMultiple Airlines
Mon 11/249:53 pmSEA - RAP
1 stop10h 50mMultiple Airlines
Deal found 10/29$245
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Tue 11/2510:33 amRAP - SEA
1 stop27h 49mMultiple Airlines
Mon 12/19:53 pmSEA - RAP
2 stops34h 54mMultiple Airlines
Deal found 10/30$246
This Delta deal was found by Cheapflights users on 10/28. 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.
Wed 12/104:25 pmFSD - GEG
1 stop5h 45mDelta
Sat 1/176:30 amGEG - FSD
1 stop7h 07mDelta
Deal found 10/28$251
This Delta deal was found by Cheapflights users on 10/28. 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.
Sat 12/138:01 amFSD - GEG
1 stop6h 13mDelta
Thu 1/156:30 amGEG - FSD
1 stop7h 07mDelta
Deal found 10/28$255
This Delta deal was found by Cheapflights users on 10/28. 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.
Fri 12/124:25 pmFSD - GEG
1 stop5h 45mDelta
Sun 1/186:30 amGEG - FSD
1 stop7h 07mDelta
Deal found 10/28$259
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:05 amRAP - PDX
1 stop7h 49mDelta
Sat 12/612:32 amPDX - RAP
1 stop8h 50mDelta
Deal found 10/29$259
This Delta deal was found by Cheapflights users on 10/28. 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.
Wed 12/1011:00 amFSD - GEG
2 stops9h 37mDelta
Sun 1/186:30 amGEG - FSD
1 stop7h 07mDelta
Deal found 10/28$260
This Delta deal was found by Cheapflights users on 10/28. 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.
Wed 12/1011:00 amFSD - GEG
2 stops11h 56mDelta
Wed 1/149:55 amGEG - FSD
2 stops7h 35mDelta
Deal found 10/28$261

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 October 30, 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

Sun 11/9

2:18 pm-12:13 pm

1 stop23h 55m

Seattle/Tacoma Intl

Wed 11/12

1:37 pm-1:28 pm

1 stop21h 51m

$194

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Thu 11/20

10:10 pm-1:22 pm

1 stop16h 12m

Seattle/Tacoma Intl

Mon 11/24

9:53 pm-9:43 am

1 stop10h 50m

$195

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Sun 12/21

10:20 pm-10:11 am

1 stop12h 51m

Seattle/Tacoma Intl

Mon 12/22

7:48 pm-8:14 am

1 stop11h 26m

$233

Rapid CitySeattle

RAP - SEA

RAPSEA

Rapid City

Fri 11/21

8:38 pm-4:37 pm

1 stop20h 59m

Seattle/Tacoma Intl

Mon 11/24

9:53 pm-9:43 am

1 stop10h 50m

$245

Rapid CityPasco

RAP - PSC

RAPPSC

Rapid City

Sat 2/14

2:52 pm-8:50 pm

1 stop6h 58m

Pasco Tri Cities

Mon 2/23

5:00 am-1:13 pm

1 stop7h 13m

$249

Rapid CitySpokane

RAP - GEG

RAPGEG

Rapid City

Sat 2/28

4:00 pm-11:16 pm

1 stop8h 16m

Spokane

Tue 3/3

6:30 am-3:14 pm

1 stop7h 44m

$249

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Tue 12/16

5:05 am-12:02 pm

1 stop8h 57m

Spokane

Wed 1/14

6:30 am-3:37 pm

1 stop7h 07m

$251

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Sat 12/13

5:21 pm-8:59 pm

1 stop5h 38m

Spokane

Tue 12/30

11:59 pm-10:52 am

1 stop8h 53m

$255

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Sat 12/13

8:01 am-12:14 pm

1 stop6h 13m

Spokane

Sun 1/18

6:30 am-3:37 pm

1 stop7h 07m

$255

Sioux FallsSpokane

FSD - GEG

FSDGEG

Sioux Falls Joe Foss Field

Sun 12/14

8:01 am-1:18 pm

1 stop7h 17m

Spokane

Sat 1/17

6:30 am-3:37 pm

1 stop7h 07m

$255

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 57 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 $131). 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.

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 October 30, 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.

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 October 30, 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
7,998 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,998 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,035 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Frontier
5.8
Fair
3,122 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 58m. The time it takes to get you to your destination can typically vary by up to 16h 57m. The distance between South Dakota and State of Washington is about 795 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 $105. However, be on the lookout for offers from United Airlines and Allegiant 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 $131). 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$183Average$280FlexibilityNo cancel feeOn-time62%
DeltaCheapest$208Average$476FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$483FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$254Average$378FlexibilityNo cancel feeOn-time71%

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