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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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — IAD
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap 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 August 14, 2025.

Round-trip from

$258
(Frontier)

One-way from

$187
(Delta)

Popular in

February

Cheapest in

December

Average price

$378
From Sioux Falls Joe Foss Field to Washington, D.C. Dulles Intl
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One-way flight from Sioux Falls Joe Foss Field to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 2% potential increase in price ($13 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 14, 2025.

This Frontier deal was found by Cheapflights users on 8/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/122:54 pmFSD - IAD
2 stops20h 08mFrontier
Sun 9/1410:09 pmIAD - FSD
2 stops17h 00mFrontier
Deal found 8/14$258
This American Airlines deal was found by Cheapflights users on 8/13. 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 9/101:19 pmFSD - IAD
1 stop8h 29mAmerican Airlines
Wed 9/1711:47 amIAD - FSD
1 stop6h 16mAmerican Airlines
Deal found 8/13$259
This Delta deal was found by Cheapflights users on 8/12. 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 8/3012:56 pmFSD - IAD
2 stops9h 30mDelta
Wed 9/36:15 amIAD - FSD
1 stop7h 01mDelta
Deal found 8/12$279
This United Airlines deal was found by Cheapflights users on 8/14. 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 9/126:11 pmFSD - IAD
1 stop5h 21mUnited Airlines
Mon 9/153:55 pmIAD - FSD
1 stop7h 17mUnited Airlines
Deal found 8/14$283
This American Airlines deal was found by Cheapflights users on 8/12. 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 9/41:19 pmFSD - IAD
1 stop8h 22mAmerican Airlines
Mon 9/86:25 amIAD - FSD
1 stop7h 13mAmerican Airlines
Deal found 8/12$319
This American Airlines deal was found by Cheapflights users on 8/13. 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 9/277:00 amFSD - IAD
1 stop8h 47mAmerican Airlines
Sat 10/412:48 pmIAD - FSD
2 stops9h 35mAmerican Airlines
Deal found 8/13$321
This Delta deal was found by Cheapflights users on 8/12. 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 8/275:27 amFSD - IAD
2 stops11h 07mDelta
Wed 9/36:15 amIAD - FSD
1 stop7h 01mDelta
Deal found 8/12$324
This Frontier deal was found by Cheapflights users on 8/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/262:54 pmFSD - IAD
2 stops20h 08mFrontier
Sun 9/2810:09 pmIAD - FSD
2 stops17h 00mFrontier
Deal found 8/13$327
This Delta deal was found by Cheapflights users on 8/12. 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 8/195:27 amFSD - IAD
1 stop5h 17mDelta
Tue 8/266:15 amIAD - FSD
1 stop7h 01mDelta
Deal found 8/12$329

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 August 14, 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

Fri 9/12

2:54 pm-12:02 pm

2 stops20h 08m

Washington, D.C. Dulles Intl

Sun 9/14

10:09 pm-2:09 pm

2 stops17h 00m

$258

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sat 9/27

7:00 am-4:47 pm

1 stop8h 47m

Washington, D.C. Dulles Intl

Sat 10/4

6:25 am-12:38 pm

1 stop7h 13m

$259

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Wed 9/10

1:19 pm-10:48 pm

1 stop8h 29m

Washington, D.C. Dulles Intl

Wed 9/17

11:47 am-5:03 pm

1 stop6h 16m

$259

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sat 8/30

12:56 pm-11:26 pm

2 stops9h 30m

Washington, D.C. Dulles Intl

Wed 9/3

6:15 am-12:16 pm

1 stop7h 01m

$279

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Fri 9/12

6:11 pm-12:32 am

1 stop5h 21m

Washington, D.C. Dulles Intl

Mon 9/15

3:55 pm-10:12 pm

1 stop7h 17m

$283

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Thu 9/11

1:19 pm-10:52 pm

1 stop8h 33m

Washington, D.C. Dulles Intl

Mon 9/15

6:25 am-12:38 pm

1 stop7h 13m

$319

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Thu 9/4

1:19 pm-10:41 pm

1 stop8h 22m

Washington, D.C. Dulles Intl

Mon 9/8

6:25 am-12:38 pm

1 stop7h 13m

$319

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Wed 11/12

5:15 am-11:29 am

1 stop5h 14m

$187

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Fri 8/29

9:28 am-1:04 pm

1 stop26h 36m

$188

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Tue 8/26

8:00 am-1:49 pm

1 stop4h 49m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 17 results
1
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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, July is the cheapest month in which you can book a flight from Sioux Falls to Washington, D.C. Dulles Intl Airport (average of $302). Flying from Sioux Falls to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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.

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 August 14, 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
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

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
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

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 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.

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

    Delta, at $233, 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 50% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $187. However, be on the lookout for offers from Allegiant Air and United Airlines, as they are both options that can get you from Sioux Falls to Washington, D.C. Dulles Intl Airport for a low price.

  • 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, July is the cheapest month in which you can book a flight from Sioux Falls to Washington, D.C. Dulles Intl Airport (average of $302). Flying from Sioux Falls to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Fairfax
Manassas
Falls Church
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Waldorf
Bowie

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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$233Average$358FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$288Average$498FlexibilityNo cancel feeOn-time69%

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