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South Dakota

$92+ 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — FSD
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$219
(Delta)

One-way from

$92
(Mytrip)

Popular in

May

Cheapest in

January

Average price

$551
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. 11% potential increase in price ($73 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 31, 2025.

This Delta deal was found by Cheapflights users on 3/31. 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 5/208:00 pmPDX - FSD
2 stops12h 15mDelta
Sat 5/315:00 amFSD - PDX
2 stops7h 45mDelta
Deal found 3/31$219
This American Airlines deal was found by Cheapflights users on 3/31. 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 9/265:55 amPDX - FSD
1 stop8h 59mAmerican Airlines
Sat 9/271:38 pmFSD - PDX
1 stop6h 55mAmerican Airlines
Deal found 3/31$239
This United Airlines deal was found by Cheapflights users on 3/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/74:10 pmGEG - RAP
1 stop5h 06mUnited Airlines
Tue 5/137:00 amRAP - GEG
1 stop6h 38mUnited Airlines
Deal found 3/30$249
This United Airlines deal was found by Cheapflights users on 3/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/14:15 pmPDX - FSD
1 stop5h 29mUnited Airlines
Tue 6/105:03 pmFSD - PDX
1 stop7h 32mUnited Airlines
Deal found 3/30$258
This Delta deal was found by Cheapflights users on 3/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/152:05 pmGEG - FSD
1 stop6h 44mDelta
Wed 11/197:30 pmFSD - GEG
1 stop5h 40mDelta
Deal found 3/30$259
This Mytrip deal was found by Cheapflights users on 3/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/167:01 pmPDX - RAP
1 stop20h 49mMultiple Airlines
Sat 4/1910:13 pmRAP - PDX
1 stop14h 13mMultiple Airlines
Deal found 3/30$261
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Tue 4/151:35 pmPSC - RAP
2 stops7h 25mUnited Airlines
Sat 4/193:43 pmRAP - PSC
1 stop6h 05mUnited Airlines
Deal found 3/31$264
This American Airlines deal was found by Cheapflights users on 3/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/191:43 amPDX - RAP
1 stop6h 54mAmerican Airlines
Wed 8/274:42 pmRAP - PDX
1 stop8h 42mAmerican Airlines
Deal found 3/30$274
This Sun Country Air deal was found by Cheapflights users on 3/30. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/243:27 pmSEA - RAP
1 stop17h 37mSun Country Air
Sun 9/285:13 pmRAP - SEA
1 stop24h 48mSun Country Air
Deal found 3/30$285
This Frontier deal was found by Cheapflights users on 3/31. 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 5/196:20 amPDX - FSD
1 stop4h 58mFrontier
Thu 5/293:58 pmFSD - PDX
1 stop10h 19mFrontier
Deal found 3/31$298
This Booking.com deal was found by Cheapflights users on 3/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/311:59 pmPDX - RAP
1 stop15h 34mSun Country Air
Mon 7/75:30 pmRAP - PDX
1 stop6h 16mSun Country Air
Deal found 3/30$300
This Mytrip deal was found by Cheapflights users on 3/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/283:20 pmSEA - FSD
2 stops27h 17mMultiple Airlines
Fri 5/309:58 pmFSD - SEA
2 stops28h 12mMultiple Airlines
Deal found 3/30$307

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 March 31, 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

Tue 5/20

8:00 pm-10:15 am

2 stops12h 15m

Sioux Falls Joe Foss Field

Sat 5/31

5:00 am-10:45 am

2 stops7h 45m

$219

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Fri 9/26

5:55 am-4:54 pm

1 stop8h 59m

Sioux Falls Joe Foss Field

Sat 9/27

1:38 pm-6:33 pm

1 stop6h 55m

$239

SpokaneRapid City

GEG - RAP

GEGRAP

Spokane

Wed 5/7

4:10 pm-10:16 pm

1 stop5h 06m

Rapid City

Tue 5/13

7:00 am-12:38 pm

1 stop6h 38m

$249

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Sun 6/1

4:15 pm-11:44 pm

1 stop5h 29m

Sioux Falls Joe Foss Field

Tue 6/10

5:03 pm-10:35 pm

1 stop7h 32m

$258

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Wed 4/16

7:01 pm-4:50 pm

1 stop20h 49m

Rapid City

Sat 4/19

10:13 pm-11:26 am

1 stop14h 13m

$261

PascoRapid City

PSC - RAP

PSCRAP

Pasco Tri Cities

Tue 4/15

1:35 pm-10:00 pm

2 stops7h 25m

Rapid City

Sat 4/19

3:43 pm-8:48 pm

1 stop6h 05m

$264

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Mon 5/19

6:20 am-1:18 pm

1 stop4h 58m

Sioux Falls Joe Foss Field

Thu 5/29

3:58 pm-12:17 am

1 stop10h 19m

$298

SeattleSioux Falls

SEA - FSD

SEAFSD

Seattle/Tacoma Intl

Wed 5/28

3:20 pm-8:37 pm

2 stops27h 17m

Sioux Falls Joe Foss Field

Fri 5/30

9:58 pm-12:10 am

2 stops28h 12m

$307

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Thu 4/24

7:01 pm-9:09 pm

1 stop24h 08m

Sioux Falls Joe Foss Field

Mon 4/28

9:59 pm-6:05 pm

1 stop22h 06m

$319

PortlandRapid City

PDX - RAP

PDXRAP

Portland

Thu 5/1

4:20 pm-10:16 pm

1 stop4h 56m

Rapid City

Thu 5/8

10:45 am-8:53 pm

2 stops11h 08m

$334

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 51 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 March 31, 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 March 31, 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
9,818 reviews

Entertainment

7.1

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Entertainment

7.1

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Entertainment

7.1

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,614 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Entertainment

7.1

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Allegiant Air
7.3
Good
731 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Entertainment

7.1

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Entertainment

7.1

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 Delta ($105), Allegiant Air ($130), and Frontier ($149).

  • 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.

See more FAQs

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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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$277FlexibilityNo cancel feeOn-time62%
DeltaCheapest$208Average$474FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$516FlexibilityNo cancel feeOn-time71%
Sun Country AirCheapest$293Average$350FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$297Average$548FlexibilityNo cancel feeOn-time69%
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