HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sioux Falls

$163+ Cheap flights from Dulles Intl (IAD) to Sioux Falls (FSD)

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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — FSD
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Sioux Falls with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 January 21, 2026.

This Delta deal was found by Cheapflights users on 1/20. 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 2/187:00 am
IAD
-
FSD
1 stop6h 15m
Delta
Wed 2/255:08 am
FSD
-
IAD
1 stop5h 27m
Delta
Deal found 1/20$279
This United Airlines deal was found by Cheapflights users on 1/20. 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 2/65:17 pm
IAD
-
FSD
1 stop5h 33m
United Airlines
Sun 2/87:30 am
FSD
-
IAD
1 stop7h 30m
United Airlines
Deal found 1/20$309
This Delta deal was found by Cheapflights users on 1/21. 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 2/197:00 am
IAD
-
FSD
1 stop6h 15m
Delta
Sat 2/211:05 pm
FSD
-
IAD
2 stops10h 16m
Delta
Deal found 1/21$324
This Delta deal was found by Cheapflights users on 1/21. 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.
Mon 8/176:40 pm
IAD
-
FSD
1 stop5h 06m
Delta
Sat 8/295:25 am
FSD
-
IAD
1 stop5h 34m
Delta
Deal found 1/21$339
This deal was found by Cheapflights users on 1/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/217:00 am
IAD
-
FSD
1 stop6h 22m
Delta
Tue 3/34:19 pm
FSD
-
IAD
1 stop6h 36m
Delta
Deal found 1/20$349
This Delta deal was found by Cheapflights users on 1/21. 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 1/297:00 am
IAD
-
FSD
1 stop6h 22m
Delta
Wed 2/48:03 am
FSD
-
IAD
1 stop4h 32m
Delta
Deal found 1/21$354
This Delta deal was found by Cheapflights users on 1/20. 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 2/106:00 am
IAD
-
FSD
2 stops10h 34m
Delta
Tue 2/174:19 pm
FSD
-
IAD
1 stop6h 36m
Delta
Deal found 1/20$364
This Delta deal was found by Cheapflights users on 1/20. 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 1/276:00 am
IAD
-
FSD
2 stops10h 37m
Delta
Tue 2/31:07 pm
FSD
-
IAD
2 stops8h 59m
Delta
Deal found 1/20$365
This deal was found by Cheapflights users on 1/20. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/217:00 am
IAD
-
FSD
1 stop6h 22m
Delta
Mon 3/24:19 pm
FSD
-
IAD
1 stop6h 36m
Delta
Deal found 1/20$369

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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$279
(Delta)

One-way from

$163
(Kiwi.com)

Popular in

January

Cheapest in

November

Average price

$634
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Sioux Falls Joe Foss Field flight deals.
Search Deals
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
One-way flight from Washington, D.C. Dulles Intl to Sioux Falls Joe Foss Field
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 21, 2026.
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 2/18

7:00 am-12:15 pm

1 stop6h 15m

Sioux Falls Joe Foss Field

Wed 2/25

5:08 am-11:35 am

1 stop5h 27m

$279

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Wed 2/18

6:00 am-12:41 pm

1 stop7h 41m

Sioux Falls Joe Foss Field

Wed 2/25

1:26 pm-10:53 pm

1 stop8h 27m

$279

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Thu 2/19

7:00 am-12:15 pm

1 stop6h 15m

Sioux Falls Joe Foss Field

Sat 2/21

1:05 pm-6:54 pm

1 stop4h 49m

$279

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Fri 2/6

5:17 pm-9:50 pm

1 stop5h 33m

Sioux Falls Joe Foss Field

Sun 2/8

7:30 am-4:00 pm

1 stop7h 30m

$309

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Tue 2/10

6:00 am-12:53 pm

1 stop7h 53m

Sioux Falls Joe Foss Field

Tue 2/17

1:22 pm-10:53 pm

1 stop8h 31m

$359

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Tue 2/10

6:00 am-3:34 pm

2 stops10h 34m

Sioux Falls Joe Foss Field

Tue 2/17

4:19 pm-11:55 pm

1 stop6h 36m

$364

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Fri 2/6

7:01 am-9:35 pm

2 stops15h 34m

Sioux Falls Joe Foss Field

Sun 2/8

5:35 pm-10:58 am

2 stops16h 23m

$508

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Fri 5/22

6:40 pm-10:46 pm

1 stop5h 06m

Sioux Falls Joe Foss Field

Mon 5/25

5:15 am-11:23 am

1 stop5h 08m

$509

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Mon 2/23

2:17 pm-7:41 pm

1 stop6h 24m

$281

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Tue 1/27

1:05 pm-5:18 pm

1 stop5h 13m

$388

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 13 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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Sioux Falls flight deals on Cheapflights vs. FlightHub >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 Expedia the most. Expedia 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

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Sioux Falls (average of $194). Flying from Washington, D.C. Dulles Intl Airport to Sioux Falls in January is currently the most expensive (average of $634). 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 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 January 21, 2026.
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
8,087 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

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
8,087 reviews
Delta
7.9
Good
8,087 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

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
9,188 reviews
Delta
7.9
Good
8,087 reviews

Boarding

8.1

Comfort

7.9

Overall

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

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 33m. 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.

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

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Sioux Falls (average of $194). Flying from Washington, D.C. Dulles Intl Airport to Sioux Falls in January is currently the most expensive (average of $634). 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 Sioux Falls?

Book flights to Sioux Falls if you plan to visit one of these locations
Marshall

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$200Average$438FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$258Average$454FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.