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Dulles Intl

$187+ Cheap flights from Sioux Falls (FSD) to Dulles Intl (IAD)

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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — IAD
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
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Cheap flight deals from Sioux Falls to Dulles Intl

Cheapest flights from Sioux Falls to Dulles Intl
Explore the most affordable flight options available from Sioux Falls to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 8, 2025.

This United Airlines deal was found by Cheapflights users on 12/8. 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 12/226:16 pmFSD - IAD
1 stop4h 59mUnited Airlines
Thu 1/18:15 amIAD - FSD
1 stop7h 12mUnited Airlines
Deal found 12/8$284
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/187:30 amFSD - IAD
1 stop7h 54mUnited Airlines
Thu 1/18:15 amIAD - FSD
1 stop7h 12mUnited Airlines
Deal found 12/7$329
This American Airlines deal was found by Cheapflights users on 12/8. 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.
Thu 12/181:16 pmFSD - IAD
2 stops9h 48mAmerican Airlines
Tue 12/306:05 amIAD - FSD
1 stop7h 23mAmerican Airlines
Deal found 12/8$334
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/116:08 pmFSD - IAD
1 stop4h 47mUnited Airlines
Sun 12/145:15 pmIAD - FSD
1 stop5h 36mUnited Airlines
Deal found 12/7$409
This eDestinos deal was found by Cheapflights users on 12/5. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2110:36 amFSD - IAD
1 stop20h 44mMultiple Airlines
Sun 1/45:35 amIAD - FSD
2 stops39h 20mMultiple Airlines
Deal found 12/5$415
This United Airlines deal was found by Cheapflights users on 12/6. 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 12/1811:27 amFSD - IAD
1 stop5h 03mUnited Airlines
Tue 12/308:15 amIAD - FSD
1 stop7h 12mUnited Airlines
Deal found 12/6$434
This American Airlines deal was found by Cheapflights users on 12/8. 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.
Mon 12/221:16 pmFSD - IAD
1 stop8h 17mAmerican Airlines
Thu 1/19:12 amIAD - FSD
2 stops13h 05mAmerican Airlines
Deal found 12/8$457
This American Airlines deal was found by Cheapflights users on 12/5. 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.
Sun 12/211:16 pmFSD - IAD
1 stop8h 49mAmerican Airlines
Sun 1/46:05 amIAD - FSD
1 stop7h 23mAmerican Airlines
Deal found 12/5$491
This American Airlines deal was found by Cheapflights users on 12/7. 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.
Thu 12/111:09 pmFSD - IAD
2 stops9h 52mAmerican Airlines
Sun 12/146:00 amIAD - FSD
1 stop7h 22mAmerican Airlines
Deal found 12/7$502
This American Airlines deal was found by Cheapflights users on 12/7. 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.
Thu 12/181:16 pmFSD - IAD
2 stops9h 48mAmerican Airlines
Thu 1/16:35 amIAD - FSD
2 stops11h 11mAmerican Airlines
Deal found 12/7$507

Find flight deals from Sioux Falls to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) to Dulles Intl (IAD). 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 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$259
(United Airlines)

One-way from

$187
(Kiwi.com)

Popular in

February

Cheapest in

January

Average price

$395
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Washington, D.C. Dulles Intl flights.
Search Deals
From Sioux Falls Joe Foss Field to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Sioux Falls Joe Foss Field to Washington, D.C. Dulles Intl
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sioux Falls to Dulles Intl 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 8, 2025.
Use the filters below to find and compare flights from Sioux Falls to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Sioux Falls

Fly to

Dulles Intl

Route

Depart

Return

Price

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Wed 4/1

7:43 am-4:02 pm

1 stop7h 19m

Washington, D.C. Dulles Intl

Sun 4/5

6:15 am-10:42 am

1 stop5h 27m

$280

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Wed 4/1

1:26 pm-10:53 pm

1 stop8h 27m

Washington, D.C. Dulles Intl

Sat 4/4

6:00 am-12:41 pm

1 stop7h 41m

$309

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Fri 2/20

1:23 pm-10:48 pm

1 stop8h 25m

Washington, D.C. Dulles Intl

Sun 2/22

6:00 am-12:27 pm

1 stop7h 27m

$309

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Thu 12/18

7:30 am-4:24 pm

1 stop7h 54m

Washington, D.C. Dulles Intl

Thu 1/1

8:15 am-2:27 pm

1 stop7h 12m

$329

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Thu 12/18

1:16 pm-10:33 pm

1 stop8h 17m

Washington, D.C. Dulles Intl

Tue 12/30

6:05 am-12:28 pm

1 stop7h 23m

$329

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sat 2/14

3:15 pm-9:23 pm

1 stop5h 08m

Washington, D.C. Dulles Intl

Wed 2/18

1:02 pm-5:21 pm

1 stop5h 19m

$339

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Tue 3/10

7:43 am-4:09 pm

1 stop7h 26m

Washington, D.C. Dulles Intl

Sat 3/14

5:26 pm-10:02 pm

1 stop5h 36m

$349

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Thu 1/8

4:17 pm-11:57 pm

1 stop6h 40m

Washington, D.C. Dulles Intl

Thu 1/15

6:00 am-3:37 pm

2 stops10h 37m

$358

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sun 12/14

10:36 am-8:41 am

1 stop21h 05m

$187

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sun 1/4

10:17 am-3:01 pm

2 stops27h 44m

$211

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/5

Showing 1-10 of 15 results
1
2

Compare providers for flights from Sioux Falls to Dulles Intl

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 Sioux Falls to Dulles Intl 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 Sioux Falls-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Sioux Falls-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Sioux Falls-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sioux Falls-Washington, D.C. Dulles Intl Airport 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 Sioux Falls-Washington, D.C. Dulles Intl Airport 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 Sioux Falls to Dulles Intl

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

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

Currently, April is the cheapest month in which you can book a flight from Sioux Falls to Washington, D.C. Dulles Intl Airport (average of $224). Flying from Sioux Falls to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of $736). 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 Sioux Falls to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated December 8, 2025.
Peruse reviews from past customers who have flown with Delta and United Airlines from Sioux Falls to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,011 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

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
8,011 reviews
Delta
7.9
Good
8,011 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

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
9,089 reviews
Delta
7.9
Good
8,011 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

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 Sioux Falls to Dulles Intl. 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 from for flights from Sioux Falls to Washington, D.C. Dulles Intl?

    For a flight from Sioux Falls to Washington, D.C. Dulles Intl, you will be flying from Joe Foss Field. Sioux Falls Joe Foss Field (FSD) is just 2.6 mi from the center of the city. Joe Foss Field is the only Sioux Falls airport and it handles 0 outbound flights to Washington, D.C. Dulles Intl per day. 2 airlines have flights to Washington, D.C. Dulles Intl from Sioux Falls Joe Foss Field on a regular basis.

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

    Departing from Sioux Falls to Washington, D.C. Dulles Intl Airport will take you 7h 19m. There are 1048 mi between Sioux Falls and Washington, D.C. Dulles Intl Airport. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Delta, at $216, was found to be the cheapest airline from Sioux Falls to Washington, D.C. Dulles Intl Airport. An alternate airline flying to your destination would be United Airlines. Delta is currently priced 56% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Sioux Falls to Washington, D.C. Dulles Intl Airport (average of $224). Flying from Sioux Falls to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of $736). 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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Fairfax
Linthicum Heights
Manassas
Rockville
Laurel
Towson
National Harbor
Bowie
Largo
McLean
Clinton

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Top 2 airlines flying from Sioux Falls to Dulles Intl

Discover the top 2 airlines that operate flights from Sioux Falls to Dulles Intl. 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 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$216Average$424FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$279Average$479FlexibilityNo cancel feeOn-time69%

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