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South Dakota

$209+ Cheap flights from Dulles Intl (IAD) 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — FSD
Mar 21 — Mar 281
Sat 3/21
Sat 3/28
1 adult, Economy
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Cheap flight deals from Dulles Intl to South Dakota

Cheapest flights from Dulles Intl to South Dakota
Explore the most affordable flight options available from Dulles Intl to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 19, 2026.

This Delta deal was found by Cheapflights users on 2/17. 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.
Fri 5/15:27 pm
IAD
-
FSD
1 stop7h 13m
Delta
Sun 5/35:00 am
FSD
-
IAD
1 stop5h 32m
Delta
Deal found 2/17$279
This Delta deal was found by Cheapflights users on 2/18. 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 4/156:00 am
IAD
-
FSD
1 stop8h 03m
Delta
Sat 4/181:44 pm
FSD
-
IAD
2 stops8h 19m
Delta
Deal found 2/18$284
This United Airlines deal was found by Cheapflights users on 2/16. 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.
Wed 4/224:00 pm
IAD
-
RAP
1 stop6h 44m
United Airlines
Thu 4/302:35 pm
RAP
-
IAD
1 stop6h 59m
United Airlines
Deal found 2/16$289
This Delta deal was found by Cheapflights users on 2/17. 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 4/295:07 pm
IAD
-
FSD
2 stops6h 55m
Delta
Sat 5/21:44 pm
FSD
-
IAD
2 stops8h 19m
Delta
Deal found 2/17$289
This Delta deal was found by Cheapflights users on 2/18. 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 5/25:15 pm
IAD
-
RAP
2 stops7h 05m
Delta
Sat 5/94:30 pm
RAP
-
IAD
1 stop5h 11m
Delta
Deal found 2/18$294
This United Airlines deal was found by Cheapflights users on 2/18. 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 4/82:21 pm
IAD
-
RAP
1 stop6h 41m
United Airlines
Sun 4/1211:40 am
RAP
-
IAD
1 stop5h 43m
United Airlines
Deal found 2/18$299
This Delta deal was found by Cheapflights users on 2/17. 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.
Thu 8/275:30 pm
IAD
-
FSD
1 stop5h 39m
Delta
Sun 8/305:15 am
FSD
-
IAD
1 stop5h 08m
Delta
Deal found 2/17$299
This Delta deal was found by Cheapflights users on 2/18. 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 5/25:15 pm
IAD
-
RAP
2 stops7h 05m
Delta
Mon 5/112:36 pm
RAP
-
IAD
2 stops8h 10m
Delta
Deal found 2/18$300
This United Airlines deal was found by Cheapflights users on 2/17. 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 5/273:39 pm
IAD
-
FSD
1 stop6h 59m
United Airlines
Sat 5/306:37 pm
FSD
-
IAD
1 stop5h 08m
United Airlines
Deal found 2/17$313
This United Airlines deal was found by Cheapflights users on 2/17. 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.
Tue 5/53:15 pm
IAD
-
RAP
1 stop8h 26m
United Airlines
Mon 5/1112:10 pm
RAP
-
IAD
1 stop5h 18m
United Airlines
Deal found 2/17$314
This Delta deal was found by Cheapflights users on 2/17. 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 5/56:37 pm
IAD
-
RAP
1 stop5h 43m
Delta
Mon 5/112:36 pm
RAP
-
IAD
2 stops8h 10m
Delta
Deal found 2/17$319
This Delta deal was found by Cheapflights users on 2/18. 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 4/97:00 am
IAD
-
FSD
1 stop6h 53m
Delta
Sun 4/124:23 pm
FSD
-
IAD
1 stop6h 18m
Delta
Deal found 2/18$319

Find flight deals from Dulles Intl to South Dakota

Keep the following information in mind while searching for Dulles Intl to South Dakota flight deals. Data was last updated February 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$279
(Delta)

One-way from

$209
(Kiwi.com)

Popular in

April

Cheapest in

November

Average price

$373
Provider with most accurate pricing for Washington, D.C. (WAS)-Sioux Falls Joe Foss Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Sioux Falls Joe Foss Field flights.
Search Deals
From Washington, D.C. Dulles Intl to South Dakota
Search Deals
One-way flight from Washington, D.C. Dulles Intl to South Dakota
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($28 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 February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 February 19, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to South Dakota that are best for you.

Fly from

Dulles Intl

Fly to

South Dakota

Route

Depart

Return

Price

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Wed 5/6

3:15 pm-9:47 pm

1 stop7h 32m

Sioux Falls Joe Foss Field

Sat 5/9

7:30 am-2:03 pm

1 stop5h 33m

$279

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Fri 5/1

5:27 pm-11:40 pm

1 stop7h 13m

Sioux Falls Joe Foss Field

Sun 5/3

5:00 am-11:32 am

1 stop5h 32m

$279

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Wed 4/15

6:15 am-10:42 am

1 stop5h 27m

Sioux Falls Joe Foss Field

Sat 4/18

6:35 pm-12:15 am

1 stop4h 40m

$279

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Wed 4/29

6:15 am-10:42 am

1 stop5h 27m

Sioux Falls Joe Foss Field

Sat 5/2

6:31 pm-12:18 am

1 stop4h 47m

$279

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Wed 4/15

6:00 am-1:03 pm

1 stop8h 03m

Sioux Falls Joe Foss Field

Sat 4/18

1:44 pm-11:03 pm

2 stops8h 19m

$284

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Wed 4/29

5:07 pm-11:02 pm

2 stops6h 55m

Sioux Falls Joe Foss Field

Sat 5/2

4:17 pm-11:32 pm

1 stop6h 15m

$284

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 3/17

2:12 pm-8:34 pm

1 stop8h 22m

Rapid City

Tue 3/24

2:45 pm-11:20 pm

1 stop6h 35m

$289

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Wed 4/22

5:20 pm-10:27 pm

1 stop7h 07m

Rapid City

Fri 5/1

12:10 pm-7:28 pm

1 stop5h 18m

$289

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sat 5/2

5:15 pm-10:20 pm

2 stops7h 05m

Rapid City

Wed 5/13

2:36 pm-11:41 pm

1 stop7h 05m

$294

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sat 5/2

5:15 pm-10:20 pm

2 stops7h 05m

Rapid City

Mon 5/11

2:36 pm-11:41 pm

1 stop7h 05m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/16

Showing 1-10 of 42 results
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Best time to book a flight from Dulles Intl to South Dakota

Have a flexible travel schedule? Discover the best time to fly to South Dakota from Dulles Intl 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, D.C. Dulles Intl Airport to South Dakota

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to South Dakota?

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to South Dakota (average of $194). Flying from Washington, D.C. Dulles Intl Airport to South Dakota in January is currently the most expensive (average of $634). 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.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to South Dakota?

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 February 19, 2026.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Washington, D.C. Dulles Intl Airport to South Dakota to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,212 reviews

Food

7.2

Crew

8.5

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Overall

7.9

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
8,212 reviews
Delta
7.9
Good
8,212 reviews

Food

7.2

Crew

8.5

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Overall

7.9

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
9,321 reviews
Delta
7.9
Good
8,212 reviews

Food

7.2

Crew

8.5

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Overall

7.9

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
11,313 reviews
Delta
7.9
Good
8,212 reviews

Food

7.2

Crew

8.5

Comfort

7.9

Entertainment

7.8

Boarding

8.1

Overall

7.9

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 Dulles Intl to South Dakota. 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 Washington, D.C. Dulles Intl Airport to South Dakota?

    United Airlines and Delta can get you from Washington, D.C. Dulles Intl Airport to South Dakota in just under 7h 13m. Your travel time can differ by up to 19m. There are 1048 mi between Washington, D.C. Dulles Intl Airport and South Dakota. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to South Dakota?

    Most travelers choose Washington, D.C. Dulles Intl - Rapid City, Washington, D.C. Dulles Intl - Sioux Falls Joe Foss Field or Washington, D.C. Dulles Intl - Aberdeen when deciding on the best route from Washington, D.C. Dulles Intl Airport to South Dakota.

  • Can I find deals for flights from Dulles Intl to South Dakota that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to South Dakota flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to South Dakota?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to South Dakota.

  • Can I find deals for business class flights from Dulles Intl to South Dakota?

    Yes. Cheapflights offers flight deals from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to South Dakota?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to South Dakota (average of $194). Flying from Washington, D.C. Dulles Intl Airport to South Dakota in January is currently the most expensive (average of $634). 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 Dulles Intl to South Dakota

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Dulles Intl to South Dakota

Discover the top 3 airlines that operate flights from Dulles Intl 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 February 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$200Average$438FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$258Average$474FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$359Average$439FlexibilityNo cancel feeOn-time71%

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