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Sioux Falls

$270+ Cheap flights from Dulles Intl (IAD) to Sioux Falls (FSD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — FSD
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Dulles Intl to Sioux Falls

Cheapest flights from Dulles Intl to Sioux Falls
Explore the most affordable flight options available from Dulles Intl to Sioux Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/16. 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.
Mon 12/296:30 amIAD - FSD
1 stop5h 22mUnited Airlines
Tue 1/67:30 amFSD - IAD
1 stop7h 30mUnited Airlines
Deal found 12/16$339
This Delta deal was found by Cheapflights users on 12/17. 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 12/193:38 pmIAD - FSD
1 stop8h 36mDelta
Wed 1/214:17 pmFSD - IAD
1 stop6h 40mDelta
Deal found 12/17$349
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Fri 12/198:15 amIAD - FSD
1 stop7h 12mUnited Airlines
Wed 12/313:08 pmFSD - IAD
1 stop5h 13mUnited Airlines
Deal found 12/17$364
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Thu 12/255:31 pmIAD - FSD
1 stop5h 25mUnited Airlines
Wed 12/313:08 pmFSD - IAD
1 stop5h 13mUnited Airlines
Deal found 12/17$369
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Fri 12/198:15 amIAD - FSD
1 stop7h 12mUnited Airlines
Tue 12/307:30 amFSD - IAD
1 stop7h 54mUnited Airlines
Deal found 12/17$409
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/316:30 amIAD - FSD
1 stop5h 22mUnited Airlines
Sun 1/46:16 pmFSD - IAD
1 stop4h 59mUnited Airlines
Deal found 12/16$443
This United Airlines deal was found by Cheapflights users on 12/16. 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.
Sun 12/286:30 amIAD - FSD
1 stop5h 22mUnited Airlines
Tue 1/67:30 amFSD - IAD
1 stop7h 30mUnited Airlines
Deal found 12/16$447
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/244:00 pmIAD - FSD
1 stop8h 55mUnited Airlines
Wed 12/313:08 pmFSD - IAD
1 stop5h 13mUnited Airlines
Deal found 12/17$452

Find flight deals from Dulles Intl to Sioux Falls

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Sioux Falls (FSD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$270
(United Airlines)

Popular in

December

Cheapest in

November

Average price

$681
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Sioux Falls Joe Foss Field flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Sioux Falls Joe Foss Field flights.
Search Deals
From Washington, D.C. Dulles Intl to Sioux Falls Joe Foss Field
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Sioux Falls 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 December 18, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Sioux Falls that are best for you.

Fly from

Dulles Intl

Fly to

Sioux Falls

Route

Depart

Return

Price

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Wed 1/14

7:00 am-12:22 pm

1 stop6h 22m

Sioux Falls Joe Foss Field

Wed 1/21

4:17 pm-11:57 pm

1 stop6h 40m

$279

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Mon 1/5

6:30 am-10:52 am

1 stop5h 22m

Sioux Falls Joe Foss Field

Mon 1/12

7:30 am-4:00 pm

1 stop7h 30m

$294

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Fri 1/2

8:15 am-2:27 pm

1 stop7h 12m

Sioux Falls Joe Foss Field

Mon 1/5

6:16 pm-12:15 am

1 stop4h 59m

$309

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Fri 1/2

6:00 am-12:33 pm

1 stop7h 33m

Sioux Falls Joe Foss Field

Tue 1/6

4:17 pm-11:57 pm

1 stop6h 40m

$309

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Thu 2/12

6:00 am-12:27 pm

1 stop7h 27m

Sioux Falls Joe Foss Field

Mon 2/16

1:12 pm-10:48 pm

1 stop8h 36m

$319

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Mon 12/29

6:30 am-10:52 am

1 stop5h 22m

Sioux Falls Joe Foss Field

Tue 1/6

7:30 am-4:00 pm

1 stop7h 30m

$339

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Thu 1/15

7:00 am-12:22 pm

1 stop6h 22m

Sioux Falls Joe Foss Field

Wed 1/21

4:17 pm-11:57 pm

1 stop6h 40m

$339

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Wed 1/14

1:05 pm-5:18 pm

1 stop5h 13m

Sioux Falls Joe Foss Field

Sat 1/17

3:11 pm-9:17 pm

1 stop5h 06m

$374

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Mon 1/5

1:00 pm-5:30 pm

1 stop5h 30m

$321

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Tue 1/6

6:00 am-12:53 pm

1 stop7h 53m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 11 results
1
2

Compare providers for flights from Dulles Intl to Sioux Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Sioux Falls in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Sioux Falls flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-Sioux Falls flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Sioux Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Sioux Falls flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Sioux Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Sioux Falls

Have a flexible travel schedule? Discover the best time to fly to Sioux Falls 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 Sioux Falls

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

Reviews of airlines servicing Sioux Falls

Get insights into the airlines that provide service to Sioux Falls. 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 Sioux Falls. Reviews last updated December 18, 2025.
Read reviews from past customers who have flown Delta and United Airlines from Washington, D.C. Dulles Intl Airport to Sioux Falls. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,005 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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
8,005 reviews
Delta
7.9
Good
8,005 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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
9,092 reviews
Delta
7.9
Good
8,005 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

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 Sioux Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sioux Falls from Washington, D.C. Dulles Intl?

    If you book a flight to Sioux Falls from Washington, D.C. Dulles Intl, you will be flying to Joe Foss Field, which is the city’s only airport. Sioux Falls Joe Foss Field (FSD) is located 2.6 mi from the center of Sioux Falls. There are 0 flights from Washington, D.C. Dulles Intl to Joe Foss Field per day from 2 different airlines.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Sioux Falls?

    Departing from Washington, D.C. Dulles Intl Airport to Sioux Falls will take you 5h 22m. The distance from Washington, D.C. Dulles Intl Airport to Sioux Falls is about 1048 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Sioux Falls round-trip?

    Currently priced at $200, Delta will fly you from Washington, D.C. Dulles Intl Airport to Sioux Falls and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $258. Users have found that Delta is 54% cheaper than the other options available to this destination.

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

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

  • How can I find direct flights from Dulles Intl to Sioux Falls?

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

  • Can I find deals for business class flights from Dulles Intl to Sioux Falls?

    Yes. Cheapflights offers flight deals from Dulles Intl to Sioux Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top 2 airlines flying from Dulles Intl to Sioux Falls

Discover the top 2 airlines that operate flights from Dulles Intl to Sioux Falls. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$200Average$438FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$258Average$454FlexibilityNo cancel feeOn-time69%

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