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South Dakota

$126+ 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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FSD
may. 5 — may. 121
lun. 5/5
lun. 5/12
1 adult, Economy
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Cheap 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 abril 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$238
(Frontier)

One-way from

$126
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$617
Provider with most accurate pricing for Seattle/Tacoma Intl-Sioux Falls Joe Foss Field flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Sioux Falls Joe Foss Field flights.
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From Washington to South Dakota
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One-way flight from Washington to South Dakota
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Highest demand for flights based on searches. 10% potential increase in price ($64 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 abril 30, 2025.

This Frontier deal was found by Cheapflights users on 4/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/296:35 amPDX - FSD
1 stop6h 23mFrontier
dom. 6/13:58 pmFSD - PDX
1 stop10h 21mFrontier
Deal found 4/28$218
This Frontier deal was found by Cheapflights users on 4/27. 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.
vie. 5/26:00 amSEA - FSD
1 stop5h 18mFrontier
lun. 5/52:08 pmFSD - SEA
1 stop12h 36mFrontier
Deal found 4/27$238
This United Airlines deal was found by Cheapflights users on 4/28. 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.
sáb. 8/234:00 pmGEG - RAP
1 stop4h 59mUnited Airlines
jue. 8/284:47 pmRAP - GEG
1 stop5h 16mUnited Airlines
Deal found 4/28$249
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/211:11 pmGEG - FSD
1 stop9h 16mAmerican Airlines
dom. 8/245:15 pmFSD - GEG
1 stop7h 21mAmerican Airlines
Deal found 4/29$259
This American Airlines deal was found by Cheapflights users on 4/28. 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.
sáb. 5/245:26 amPDX - FSD
1 stop9h 39mAmerican Airlines
vie. 5/305:45 pmFSD - PDX
1 stop6h 54mAmerican Airlines
Deal found 4/28$260
This Delta deal was found by Cheapflights users on 4/29. 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.
sáb. 11/152:05 pmGEG - FSD
1 stop6h 44mDelta
mié. 11/196:00 amFSD - GEG
2 stops10h 44mDelta
Deal found 4/29$264
This United Airlines deal was found by Cheapflights users on 4/28. 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.
vie. 9/194:07 pmPDX - FSD
1 stop5h 33mUnited Airlines
mar. 9/236:00 amFSD - PDX
2 stops10h 42mUnited Airlines
Deal found 4/28$265
This Delta deal was found by Cheapflights users on 4/28. 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.
jue. 5/298:00 pmPDX - FSD
2 stops12h 15mDelta
dom. 6/15:00 amFSD - PDX
2 stops7h 45mDelta
Deal found 4/28$274
This Delta deal was found by Cheapflights users on 4/28. 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.
sáb. 8/236:50 amGEG - RAP
1 stop8h 14mDelta
jue. 8/282:20 pmRAP - GEG
2 stops10h 59mDelta
Deal found 4/28$284
This Sun Country Air deal was found by Cheapflights users on 4/29. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/311:59 pmPDX - RAP
1 stop15h 34mSun Country Air
lun. 7/75:21 pmRAP - PDX
1 stop6h 25mSun Country Air
Deal found 4/29$285
This Sun Country Air deal was found by Cheapflights users on 4/28. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/243:27 pmSEA - RAP
1 stop17h 37mSun Country Air
dom. 9/285:13 pmRAP - SEA
1 stop24h 48mSun Country Air
Deal found 4/28$285
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 6/146:39 pmPDX - RAP
1 stop25h 35mMultiple Airlines
sáb. 6/213:30 pmRAP - PDX
1 stop19h 15mMultiple Airlines
Deal found 4/29$320

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 abril 30, 2025.
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

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

jue. 5/29

6:35 am-2:58 pm

1 stop6h 23m

Sioux Falls Joe Foss Field

dom. 6/1

3:58 pm-12:19 am

1 stop10h 21m

$218

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

vie. 5/2

6:00 am-1:18 pm

1 stop5h 18m

Sioux Falls Joe Foss Field

lun. 5/5

2:08 pm-12:44 am

1 stop12h 36m

$238

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

sáb. 8/23

4:00 pm-9:59 pm

1 stop4h 59m

Rapid City

jue. 8/28

4:47 pm-9:03 pm

1 stop5h 16m

$249

SpokaneSioux Falls

GEG - FSD

GEGFSD

Spokane

jue. 8/21

1:11 pm-12:27 am

1 stop9h 16m

Sioux Falls Joe Foss Field

dom. 8/24

5:15 pm-10:36 pm

1 stop7h 21m

$259

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

sáb. 5/24

5:26 am-5:05 pm

1 stop9h 39m

Sioux Falls Joe Foss Field

vie. 5/30

5:45 pm-10:39 pm

1 stop6h 54m

$260

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

vie. 9/19

4:07 pm-11:40 pm

1 stop5h 33m

Sioux Falls Joe Foss Field

mar. 9/23

6:00 am-2:42 pm

2 stops10h 42m

$265

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

jue. 5/29

8:00 pm-10:15 am

2 stops12h 15m

Sioux Falls Joe Foss Field

dom. 6/1

5:00 am-10:45 am

2 stops7h 45m

$274

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

sáb. 8/23

6:50 am-4:04 pm

1 stop8h 14m

Rapid City

jue. 8/28

2:20 pm-12:19 am

2 stops10h 59m

$284

PortlandRapid City

PDX - RAP

PDXRAP

Portland

jue. 7/3

11:59 pm-4:33 pm

1 stop15h 34m

Rapid City

lun. 7/7

5:21 pm-10:46 pm

1 stop6h 25m

$285

SeattleRapid City

SEA - RAP

SEARAP

Seattle/Tacoma Intl

jue. 7/3

11:59 pm-4:33 pm

1 stop15h 34m

Rapid City

lun. 7/7

5:21 pm-10:50 pm

1 stop6h 29m

$310

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 52 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, September is the cheapest month in which you can book a flight from State of Washington to South Dakota (average of $334). Flying from State of Washington to South Dakota in December is currently the most expensive (average of $446). 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 WA to SD?

Find hourly flight availability from Washington to South Dakota. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 30, 2025.

When flying from State of Washington to South Dakota, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in South Dakota by month

Plan your trip to South Dakota by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in South Dakota ranges from 0.6 - 3.9 inches per month. June is typically the wettest month, when rainfall can reach 3.9 in. January is typically the driest time to visit South Dakota when rainfall is around 0.6 in.

Temperature in South Dakota by month

Plan your trip to South Dakota by taking into account the average temperature totals by month.

If weather is an important factor for your trip to South Dakota, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

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 abril 30, 2025.
See what other customers who have flown with Alaska Airlines, Delta and United Airlines from Washington to South Dakota have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,961 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,936 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Allegiant Air
7.3
Good
734 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

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.

  • 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 United Airlines ($126), Frontier ($129), and Allegiant Air ($135).

  • 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, September is the cheapest month in which you can book a flight from State of Washington to South Dakota (average of $334). Flying from State of Washington to South Dakota in December is currently the most expensive (average of $446). 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.

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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 abril 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$110Average$286FlexibilityNo cancel feeOn-time62%
DeltaCheapest$208Average$450FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$513FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$283Average$557FlexibilityNo cancel feeOn-time69%
Sun Country AirCheapest$293Average$350FlexibilityNo cancel feeOn-time83%

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