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Dulles Intl

$114+ Cheap flights from South Dakota 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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — IAD
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheap flight deals from South Dakota to Dulles Intl

Keep the following information in mind while searching for South Dakota to Dulles Intl flight deals. Data was last updated April 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$373
(Delta)

One-way from

$114
(Mytrip)

Popular in

February

Cheapest in

November

Average price

$312
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Washington, D.C. (WAS) flights.
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From South Dakota to Washington, D.C. Dulles Intl
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One-way flight from South Dakota to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 30% potential increase in price ($164 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from South Dakota to Dulles Intl

Cheapest flights from South Dakota to Dulles Intl
Explore the most affordable flight options available from South Dakota to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

This United Airlines deal was found by Cheapflights users on 4/28. 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 6/46:20 amRAP - IAD
1 stop6h 08mUnited Airlines
Tue 6/106:48 amIAD - RAP
1 stop5h 33mUnited Airlines
Deal found 4/28$327
This Delta deal was found by Cheapflights users on 4/29. 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 6/45:00 amFSD - IAD
1 stop5h 16mDelta
Tue 6/106:20 amIAD - FSD
1 stop6h 56mDelta
Deal found 4/29$373
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Tue 6/2411:18 amRAP - IAD
1 stop6h 26mAmerican Airlines
Fri 6/276:55 amIAD - RAP
1 stop5h 49mAmerican Airlines
Deal found 4/28$412
This American Airlines deal was found by Cheapflights users on 4/29. 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 7/26:20 amFSD - IAD
2 stops9h 51mAmerican Airlines
Sun 7/66:35 amIAD - FSD
2 stops10h 56mAmerican Airlines
Deal found 4/29$481
This United Airlines deal was found by Cheapflights users on 4/29. 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 5/68:00 amFSD - IAD
1 stop5h 06mUnited Airlines
Mon 5/123:30 pmIAD - FSD
1 stop7h 42mUnited Airlines
Deal found 4/29$495
This Delta deal was found by Cheapflights users on 4/29. 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 5/214:25 pmRAP - IAD
1 stop5h 09mDelta
Sun 5/251:00 pmIAD - RAP
2 stops11h 34mDelta
Deal found 4/29$505

Cheapflights Fare Finder

Customize your flight search to find flights from South Dakota 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 April 30, 2025.
Use the filters below to find and compare flights from South Dakota to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

South Dakota

Fly to

Dulles Intl

Route

Depart

Return

Price

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Wed 6/4

5:00 am-11:16 am

1 stop5h 16m

Washington, D.C. Dulles Intl

Tue 6/10

6:20 am-12:16 pm

1 stop6h 56m

$373

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Fri 6/6

4:30 pm-12:34 am

1 stop6h 04m

Washington, D.C. Dulles Intl

Sun 6/29

2:39 pm-8:47 pm

1 stop8h 08m

$385

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Sat 6/14

12:03 pm-10:39 pm

1 stop8h 36m

Washington, D.C. Dulles Intl

Sat 6/21

6:27 am-2:08 pm

1 stop9h 41m

$460

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Wed 7/2

6:20 am-5:11 pm

2 stops9h 51m

Washington, D.C. Dulles Intl

Sun 7/6

6:35 am-4:31 pm

2 stops10h 56m

$481

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Tue 5/6

8:00 am-2:06 pm

1 stop5h 06m

Washington, D.C. Dulles Intl

Mon 5/12

3:30 pm-10:12 pm

1 stop7h 42m

$495

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Wed 5/21

4:25 pm-11:34 pm

1 stop5h 09m

Washington, D.C. Dulles Intl

Sun 5/25

1:00 pm-10:34 pm

2 stops11h 34m

$505

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Fri 6/6

8:03 pm-2:32 pm

1 stop17h 29m

$114

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Wed 7/30

11:19 am-7:36 pm

1 stop6h 17m

$178

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Wed 7/30

6:50 am-4:25 pm

2 stops7h 35m

$183

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Wed 6/4

10:37 am-4:15 pm

3 stops28h 38m

$208

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 14 results
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Best time to book a flight from South Dakota to Dulles Intl

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

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

Currently, August is the cheapest month in which you can book a flight from South Dakota to Washington, D.C. Dulles Intl Airport (average of $309). Flying from South Dakota to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). 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.

What is the cheapest time of day to fly from SD to IAD?

Find hourly flight availability from South Dakota to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 30, 2025.

When flying from South Dakota to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 April 30, 2025.
See what other customers who have flown with Delta, United Airlines and Allegiant Air from South Dakota to Washington, D.C. have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Allegiant Air
7.3
Good
734 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from South Dakota 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 are the cheapest airlines to fly from South Dakota to Washington, D.C. Dulles Intl Airport one-way?

    The cheapest airlines for a one-way flight from South Dakota to Washington, D.C. Dulles Intl Airport are Allegiant Air ($114), American Airlines ($178), and Delta ($183).

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

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

  • How can I find direct flights from South Dakota to Dulles Intl?

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

  • Can I find deals for business class flights from South Dakota to Dulles Intl?

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

    Currently, August is the cheapest month in which you can book a flight from South Dakota to Washington, D.C. Dulles Intl Airport (average of $309). Flying from South Dakota to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). 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 South Dakota?

Book flights to South Dakota if you plan to visit one of these locations
Alexandria
Arlington
Woodbridge
Tysons
Fairfax
Springfield
Rockville
Fredericksburg
Silver Spring
Gaithersburg
Linthicum Heights
Falls Church
Laurel
Easton
Towson
Herndon
Sterling
Bowie
National Harbor
Oxon Hill

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Alternative routes for South Dakota to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
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LaGuardia to Reagan-National flights
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Top 2 airlines flying from South Dakota to Dulles Intl

Discover the top 2 airlines that operate flights from South Dakota 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$216Average$358FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$279Average$522FlexibilityNo cancel feeOn-time69%

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