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South Dakota

$153+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — FSD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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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 September 11, 2025.

Round-trip from

$259
(United Airlines)

One-way from

$153
(Kiwi.com)

Popular in

April

Cheapest in

February

Average price

$379
From Washington, D.C. Dulles Intl to South Dakota
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One-way flight from Washington, D.C. Dulles Intl to South Dakota
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Highest demand for flights based on searches. 5% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 11/16:11 amIAD - RAP
1 stop7h 25mAmerican Airlines
Sat 11/85:18 amRAP - IAD
1 stop8h 53mAmerican Airlines
Deal found 9/10$269
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 9/258:20 amIAD - FSD
1 stop7h 17mUnited Airlines
Mon 9/293:12 pmFSD - IAD
1 stop4h 43mUnited Airlines
Deal found 9/10$289
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 10/28:20 amIAD - FSD
1 stop7h 17mUnited Airlines
Sat 10/48:00 amFSD - IAD
1 stop4h 51mUnited Airlines
Deal found 9/10$339
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/106:30 amIAD - FSD
1 stop5h 07mUnited Airlines
Sun 10/126:10 pmFSD - IAD
1 stop5h 11mUnited Airlines
Deal found 9/10$340
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 10/184:00 pmIAD - RAP
1 stop6h 35mUnited Airlines
Sat 10/2512:56 pmRAP - IAD
1 stop8h 26mUnited Airlines
Deal found 9/9$343
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 9/186:35 amIAD - RAP
1 stop5h 47mUnited Airlines
Wed 9/247:00 amRAP - IAD
1 stop7h 43mUnited Airlines
Deal found 9/9$349
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Mon 9/296:30 amIAD - FSD
1 stop5h 07mUnited Airlines
Sun 10/58:00 amFSD - IAD
1 stop4h 51mUnited Airlines
Deal found 9/10$354
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 9/252:45 pmIAD - RAP
1 stop7h 49mUnited Airlines
Thu 10/211:15 amRAP - IAD
1 stop6h 08mUnited Airlines
Deal found 9/11$369
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Mon 11/33:59 pmIAD - RAP
1 stop6h 27mUnited Airlines
Thu 11/612:27 pmRAP - IAD
1 stop6h 54mUnited Airlines
Deal found 9/9$371
This United Airlines deal was found by Cheapflights users on 9/11. 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 9/163:55 pmIAD - FSD
1 stop7h 17mUnited Airlines
Sat 9/208:00 amFSD - IAD
1 stop4h 49mUnited Airlines
Deal found 9/11$379
This American Airlines deal was found by Cheapflights users on 9/10. 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 9/1611:18 amIAD - FSD
2 stops11h 05mAmerican Airlines
Sat 9/201:19 pmFSD - IAD
1 stop8h 29mAmerican Airlines
Deal found 9/10$384
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/3012:35 pmIAD - RAP
1 stop8h 05mUnited Airlines
Fri 10/33:20 pmRAP - IAD
1 stop6h 02mUnited Airlines
Deal found 9/10$401

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 September 11, 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.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sat 11/1

6:11 am-11:36 am

1 stop7h 25m

Rapid City

Sat 11/8

5:18 am-4:11 pm

1 stop8h 53m

$269

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Thu 9/25

8:20 am-2:37 pm

1 stop7h 17m

Sioux Falls Joe Foss Field

Mon 9/29

3:12 pm-8:55 pm

1 stop4h 43m

$289

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Thu 10/2

8:20 am-2:37 pm

1 stop7h 17m

Sioux Falls Joe Foss Field

Sat 10/4

8:00 am-1:51 pm

1 stop4h 51m

$339

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Fri 10/10

6:30 am-10:37 am

1 stop5h 07m

Sioux Falls Joe Foss Field

Sun 10/12

6:10 pm-12:21 am

1 stop5h 11m

$340

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sat 10/18

4:00 pm-8:35 pm

1 stop6h 35m

Rapid City

Sat 10/25

12:56 pm-11:22 pm

1 stop8h 26m

$343

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Thu 9/18

6:35 am-10:22 am

1 stop5h 47m

Rapid City

Wed 9/24

7:00 am-4:43 pm

1 stop7h 43m

$349

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 10/21

6:30 am-10:13 am

1 stop5h 43m

Rapid City

Sat 10/25

12:56 pm-11:22 pm

1 stop8h 26m

$349

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Mon 9/29

6:30 am-10:37 am

1 stop5h 07m

Sioux Falls Joe Foss Field

Sun 10/5

8:00 am-1:51 pm

1 stop4h 51m

$354

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Wed 11/5

11:25 am-9:16 pm

2 stops11h 51m

Rapid City

Sat 11/8

1:42 pm-10:28 pm

1 stop6h 46m

$355

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Thu 9/25

8:30 am-2:45 pm

1 stop8h 15m

Rapid City

Thu 10/2

11:15 am-7:23 pm

1 stop6h 08m

$369

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 43 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, 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 September 11, 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 September 11, 2025.
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
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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?

    American Airlines, United Airlines, and Delta can get you from Washington, D.C. Dulles Intl Airport to South Dakota in just under 7h 17m. Your travel time can differ by up to 20h 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 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 $218. However, be on the lookout for offers from Delta and United Airlines, 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?

    Most travelers choose Washington, D.C. Dulles Intl - Sioux Falls Joe Foss Field, Washington, D.C. Dulles Intl - Rapid City 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, 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.

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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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Baltimore to Atlanta flights
Baltimore to Miami flights
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Dulles Intl to Midway flights
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Baltimore to Seattle flights
Reagan-National to Fort Lauderdale flights
Baltimore to San Francisco flights
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Reagan-National to Detroit flights
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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$258Average$502FlexibilityNo cancel feeOn-time69%
DeltaCheapest$263Average$434FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$359Average$439FlexibilityNo cancel feeOn-time71%

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