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Dulles Intl

$183+ 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — IAD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$259
(United Airlines)

One-way from

$183
(Kiwi.com)

Popular in

February

Cheapest in

November

Average price

$495
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 ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($26 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 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 September 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 10/146:10 pmFSD - IAD
1 stop5h 11mUnited Airlines
Tue 10/215:15 pmIAD - FSD
1 stop6h 07mUnited Airlines
Deal found 9/14$259
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:35 pmFSD - IAD
2 stops8h 43mDelta
Tue 11/46:18 amIAD - FSD
1 stop4h 55mDelta
Deal found 9/14$264
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/88:00 amFSD - IAD
1 stop6h 55mUnited Airlines
Wed 11/125:15 pmIAD - FSD
1 stop5h 31mUnited Airlines
Deal found 9/15$295
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/52:54 pmFSD - IAD
2 stops23h 45mMultiple Airlines
Sat 10/119:38 pmIAD - FSD
1 stop11h 49mMultiple Airlines
Deal found 9/14$314
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:00 amFSD - IAD
1 stop9h 04mAmerican Airlines
Tue 11/46:04 amIAD - FSD
1 stop7h 17mAmerican Airlines
Deal found 9/14$324
This Delta deal was found by Cheapflights users on 9/15. 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 9/275:30 amFSD - IAD
1 stop7h 23mDelta
Tue 9/306:15 amIAD - FSD
1 stop6h 56mDelta
Deal found 9/15$329
This American Airlines deal was found by Cheapflights users on 9/15. 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
2 stops10h 47mAmerican Airlines
Tue 9/3011:18 amIAD - FSD
2 stops11h 05mAmerican Airlines
Deal found 9/15$339
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sun 10/56:10 pmFSD - IAD
1 stop5h 11mUnited Airlines
Sat 10/115:15 pmIAD - FSD
1 stop6h 07mUnited Airlines
Deal found 9/14$353
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/265:46 pmFSD - IAD
1 stop4h 52mDelta
Mon 9/295:25 pmIAD - FSD
1 stop6h 37mDelta
Deal found 9/16$369

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 September 16, 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

Tue 10/14

6:10 pm-12:21 am

1 stop5h 11m

Washington, D.C. Dulles Intl

Tue 10/21

5:15 pm-10:22 pm

1 stop6h 07m

$259

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Fri 10/31

1:35 pm-11:18 pm

2 stops8h 43m

Washington, D.C. Dulles Intl

Tue 11/4

3:33 pm-10:56 pm

1 stop8h 23m

$264

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sat 3/14

6:20 pm-11:57 pm

1 stop4h 37m

Washington, D.C. Dulles Intl

Wed 3/18

5:15 pm-9:47 pm

1 stop5h 32m

$278

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sat 11/8

8:00 am-3:55 pm

1 stop6h 55m

Washington, D.C. Dulles Intl

Wed 11/12

5:15 pm-9:46 pm

1 stop5h 31m

$295

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Fri 10/31

7:00 am-5:04 pm

1 stop9h 04m

Washington, D.C. Dulles Intl

Tue 11/4

6:04 am-12:21 pm

1 stop7h 17m

$324

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Thu 10/30

1:32 pm-10:51 pm

1 stop8h 19m

Washington, D.C. Dulles Intl

Mon 11/3

6:04 am-12:21 pm

1 stop7h 17m

$324

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Fri 11/14

6:23 pm-11:59 pm

1 stop4h 36m

Washington, D.C. Dulles Intl

Mon 11/17

5:15 pm-9:46 pm

1 stop5h 31m

$324

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sat 9/27

5:30 am-1:53 pm

1 stop7h 23m

Washington, D.C. Dulles Intl

Tue 9/30

6:15 am-12:11 pm

1 stop6h 56m

$329

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sun 10/12

5:20 am-11:26 am

1 stop5h 06m

$271

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Fri 12/5

1:09 pm-10:59 pm

1 stop8h 50m

$271

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 14 results
1
2

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, August is the cheapest month in which you can book a flight from Sioux Falls to Washington, D.C. Dulles Intl Airport (average of $292). 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 September 16, 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
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

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
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

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
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

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.

  • 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 5h 11m. 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 $258, 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 45% 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, August is the cheapest month in which you can book a flight from Sioux Falls to Washington, D.C. Dulles Intl Airport (average of $292). 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
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
National Harbor
Dundalk

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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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$258Average$378FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$324Average$498FlexibilityNo cancel feeOn-time69%

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