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Dulles Intl

$218+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — IAD
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
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 February 3, 2026.

This American Airlines deal was found by Cheapflights users on 2/2. 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 2/271:26 pm
FSD
-
IAD
1 stop8h 27m
American Airlines
Fri 3/66:00 am
IAD
-
FSD
1 stop7h 41m
American Airlines
Deal found 2/2$279
This Delta deal was found by Cheapflights users on 2/1. 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 5/21:44 pm
FSD
-
IAD
2 stops8h 19m
Delta
Sat 5/911:15 am
IAD
-
FSD
2 stops9h 34m
Delta
Deal found 2/1$289
This Delta deal was found by Cheapflights users on 2/2. 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.
Thu 2/261:00 pm
FSD
-
IAD
2 stops10h 21m
Delta
Thu 3/57:00 am
IAD
-
FSD
1 stop6h 15m
Delta
Deal found 2/2$304
This American Airlines deal was found by Cheapflights users on 2/1. 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 3/41:26 pm
FSD
-
IAD
1 stop8h 27m
American Airlines
Sat 3/76:00 am
IAD
-
FSD
1 stop7h 42m
American Airlines
Deal found 2/1$319
This Delta deal was found by Cheapflights users on 2/2. 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 3/45:00 am
FSD
-
IAD
1 stop7h 34m
Delta
Sat 3/76:00 am
IAD
-
FSD
2 stops10h 34m
Delta
Deal found 2/2$324
This United Airlines deal was found by Cheapflights users on 2/2. 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 4/16:00 am
FSD
-
IAD
1 stop4h 48m
United Airlines
Thu 4/91:10 pm
IAD
-
FSD
1 stop5h 34m
United Airlines
Deal found 2/2$339
This American Airlines deal was found by Cheapflights users on 2/1. 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 8/267:04 am
FSD
-
IAD
1 stop9h 10m
American Airlines
Sun 8/306:34 am
IAD
-
FSD
2 stops11h 01m
American Airlines
Deal found 2/1$344
This United Airlines deal was found by Cheapflights users on 2/1. 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 5/46:31 pm
FSD
-
IAD
1 stop4h 47m
United Airlines
Sun 5/103:15 pm
IAD
-
FSD
1 stop7h 32m
United Airlines
Deal found 2/1$352
This American Airlines deal was found by Cheapflights users on 2/1. 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 3/281:26 pm
FSD
-
IAD
1 stop8h 27m
American Airlines
Wed 4/16:00 am
IAD
-
FSD
1 stop7h 41m
American Airlines
Deal found 2/1$377

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 February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$279
(American Airlines)

One-way from

$218
(Kiwi.com)

Popular in

February

Cheapest in

January

Average price

$758
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, 0% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 3, 2026.
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

Sat 4/11

5:20 am-11:55 am

1 stop5h 35m

Washington, D.C. Dulles Intl

Wed 4/15

6:37 pm-11:02 pm

1 stop5h 25m

$279

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sat 5/2

4:17 pm-11:32 pm

1 stop6h 15m

Washington, D.C. Dulles Intl

Sat 5/9

5:16 pm-10:57 pm

2 stops6h 41m

$284

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Thu 2/26

1:00 pm-12:21 am

2 stops10h 21m

Washington, D.C. Dulles Intl

Thu 3/5

7:00 am-12:15 pm

1 stop6h 15m

$304

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Wed 3/4

1:26 pm-10:53 pm

1 stop8h 27m

Washington, D.C. Dulles Intl

Sat 3/7

6:00 am-12:42 pm

1 stop7h 42m

$319

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Wed 3/4

5:00 am-4:28 pm

2 stops10h 28m

Washington, D.C. Dulles Intl

Sat 3/7

6:00 am-3:34 pm

2 stops10h 34m

$329

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Wed 4/1

6:00 am-11:48 am

1 stop4h 48m

Washington, D.C. Dulles Intl

Thu 4/9

1:10 pm-5:44 pm

1 stop5h 34m

$339

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sat 3/28

1:26 pm-10:53 pm

1 stop8h 27m

Washington, D.C. Dulles Intl

Wed 4/1

6:00 am-12:41 pm

1 stop7h 41m

$377

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Thu 7/9

5:25 am-12:01 pm

1 stop5h 36m

Washington, D.C. Dulles Intl

Mon 7/13

5:25 pm-10:11 pm

1 stop5h 46m

$379

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sun 3/1

4:19 pm-11:55 pm

1 stop6h 36m

Washington, D.C. Dulles Intl

Sun 3/8

7:00 am-12:53 pm

1 stop6h 53m

$399

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Tue 6/2

1:21 pm-1:20 pm

3 stops46h 59m

$218

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

Showing 1-10 of 17 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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sioux Falls-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 $228). 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.

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 February 3, 2026.
Peruse reviews from past customers who have flown with 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.
United Airlines
7.4
Good
9,236 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,236 reviews
United Airlines
7.4
Good
9,236 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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. 1 airline has 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 35m. 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 is the cheapest airline to fly from Sioux Falls to Washington, D.C. Dulles Intl Airport round-trip?

    United Airlines, at $293, was found to be the cheapest airline from Sioux Falls to Washington, D.C. Dulles Intl Airport.. United Airlines is currently priced 42% 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 $228). 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
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Upper Marlboro
Manassas
Largo
Bowie
McLean
Clinton

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Sioux Falls to Dulles Intl

Discover the top airline 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 February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$293Average$479FlexibilityNo cancel feeOn-time69%

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