South Dakota

$178+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — FSD
Jul 30 — Aug 61
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Cheap 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 July 25, 2025.

Round-trip from

$259
(Delta)

One-way from

$178
(American Airlines)

Popular in

July

Cheapest in

February

Average price

$868
From Washington, D.C. Dulles Intl to South Dakota
One-way flight from Washington, D.C. Dulles Intl to South Dakota
Highest demand for flights based on searches. 26% potential increase in price ($157 potential increase over avg. RT price).
Cheapest flight prices on average. 10% potential price decrease ($41 potential savings vs. average RT price).
Average for round-trip flights in July 2025

Find 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 July 25, 2025.

This Delta deal was found by Cheapflights users on 7/23. 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 8/225:25 pmIAD - FSD
1 stop6h 41mDelta
Tue 8/265:27 amFSD - IAD
1 stop4h 56mDelta
Deal found 7/23$259
This Delta deal was found by Cheapflights users on 7/24. 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 9/167:05 pmIAD - RAP
1 stop5h 25mDelta
Wed 10/14:24 pmRAP - IAD
1 stop5h 14mDelta
Deal found 7/24$269
This American Airlines deal was found by Cheapflights users on 7/24. 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.
Wed 11/52:16 pmIAD - RAP
2 stops8h 59mAmerican Airlines
Tue 11/112:20 pmRAP - IAD
1 stop6h 13mAmerican Airlines
Deal found 7/24$274
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/133:39 pmIAD - FSD
1 stop7h 21mUnited Airlines
Sat 8/238:00 amFSD - IAD
1 stop4h 49mUnited Airlines
Deal found 7/22$277
This United Airlines deal was found by Cheapflights users on 7/23. 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 9/95:47 pmIAD - RAP
1 stop6h 12mUnited Airlines
Sat 9/135:30 amRAP - IAD
1 stop8h 04mUnited Airlines
Deal found 7/23$285
This American Airlines deal was found by Cheapflights users on 7/22. 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 8/126:27 amIAD - FSD
1 stop7h 31mAmerican Airlines
Thu 8/216:00 amFSD - IAD
2 stops16h 59mAmerican Airlines
Deal found 7/22$318
This Delta deal was found by Cheapflights users on 7/23. 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 8/206:00 amIAD - ABR
2 stops9h 13mDelta
Wed 8/272:49 pmABR - IAD
1 stop7h 51mDelta
Deal found 7/23$402
This United Airlines deal was found by Cheapflights users on 7/22. 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.
Fri 10/315:18 pmIAD - PIR
1 stop6h 57mUnited Airlines
Sat 11/16:15 amPIR - IAD
1 stop8h 21mUnited Airlines
Deal found 7/22$464

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 July 25, 2025.
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

Fri 8/22

5:25 pm-11:06 pm

1 stop6h 41m

Sioux Falls Joe Foss Field

Tue 8/26

5:27 am-11:23 am

1 stop4h 56m

$259

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 9/16

7:05 pm-10:30 pm

1 stop5h 25m

Rapid City

Wed 10/1

4:24 pm-11:38 pm

1 stop5h 14m

$269

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Wed 8/13

3:39 pm-10:00 pm

1 stop7h 21m

Sioux Falls Joe Foss Field

Sat 8/23

8:00 am-1:49 pm

1 stop4h 49m

$277

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 9/9

5:47 pm-9:59 pm

1 stop6h 12m

Rapid City

Sat 9/13

5:30 am-3:34 pm

1 stop8h 04m

$285

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Tue 8/12

6:27 am-12:58 pm

1 stop7h 31m

Sioux Falls Joe Foss Field

Thu 8/21

6:00 am-11:59 pm

2 stops16h 59m

$318

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 10/14

10:25 am-9:19 pm

2 stops12h 54m

Rapid City

Sat 10/18

12:08 pm-11:50 pm

2 stops9h 42m

$336

Washington, D.C.Aberdeen

IAD - ABR

IADABR

Washington, D.C. Dulles Intl

Wed 8/20

6:00 am-2:13 pm

2 stops9h 13m

Aberdeen

Wed 8/27

2:49 pm-11:40 pm

1 stop7h 51m

$402

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Mon 9/29

6:25 am-12:03 pm

1 stop7h 38m

$178

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Mon 9/29

5:00 pm-10:30 pm

2 stops7h 30m

$211

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Tue 7/29

6:39 pm-11:44 pm

1 stop6h 05m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Showing 1-10 of 15 results
1
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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, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to South Dakota (average of $334). Flying from Washington, D.C. Dulles Intl Airport 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 IAD to SD?

Find hourly flight availability from Dulles Intl 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 July 25, 2025.

When flying from Washington, D.C. Dulles Intl Airport 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.

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 July 25, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and United 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.

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
8.0
Very good

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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.
  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to South Dakota one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $178. However, be on the lookout for offers from Delta and Allegiant Air, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to South Dakota for a low price.

  • What are the most popular routes 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, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to South Dakota (average of $334). Flying from Washington, D.C. Dulles Intl Airport 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 Dulles Intl to South Dakota

See prices for flight routes from nearby airports that may be better suited for you.

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 July 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$208Average$438FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$311Average$530FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$359Average$408FlexibilityNo cancel feeOn-time71%

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