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 ($169), American Airlines ($206), and United Airlines ($246).

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.

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).

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

The best pricing can be found in the month of November. Prices to Washington, D.C. Dulles Intl Airport from South Dakota average $389. You can even find prices in November for less than $389, as users have found deals to Washington, D.C. Dulles Intl Airport from as low as $246. The month of February appears to be one of the more expensive times to travel to Washington, D.C. Dulles Intl Airport from South Dakota. Flying in the targeted month can save you up to 75%.

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

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.

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.

$169+ Flights from South Dakota to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from South Dakota to Dulles Intl

Round-trip from	$259 (American Airlines)
One-way from	$169 (Mytrip)
Popular in	February
Cheapest in	November
Average price	$414

From South Dakota to Washington, D.C. Dulles Intl

Search Deals

One-way flight from South Dakota to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 28% potential increase in price ($153 potential increase over avg. RT price).

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Cheapest flight prices on average. 7% potential price decrease ($27 potential savings vs. average RT price).

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Average for round-trip flights in June 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 June 30, 2025.

Thu 9/257:00 amFSD - IAD

1 stop8h 50mAmerican Airlines

Sun 9/286:25 amIAD - FSD

1 stop7h 14mAmerican Airlines

Deal found 6/28

$259

Tue 7/224:30 pmRAP - IAD

1 stop4h 55mDelta

Tue 7/296:39 pmIAD - RAP

1 stop5h 52mDelta

Deal found 6/28

$269

Sat 8/98:00 amFSD - IAD

1 stop4h 49mUnited Airlines

Thu 8/143:39 pmIAD - FSD

1 stop7h 21mUnited Airlines

Deal found 6/27

$285

Fri 7/256:16 pmFSD - IAD

1 stop4h 09mDelta

Sun 7/276:39 pmIAD - FSD

1 stop6h 05mDelta

Deal found 6/30

$309

Tue 7/156:30 amRAP - IAD

1 stop5h 19mUnited Airlines

Sat 7/193:39 pmIAD - RAP

1 stop8h 07mUnited Airlines

Deal found 6/30

$319

Fri 10/36:00 amRAP - IAD

1 stop8h 50mAmerican Airlines

Mon 10/66:11 amIAD - RAP

1 stop17h 39mAmerican Airlines

Deal found 6/30

$367

Thu 8/288:30 pmRAP - IAD

3 stops17h 45mMultiple Airlines

Mon 9/111:24 amIAD - RAP

1 stop7h 04mMultiple Airlines

Deal found 6/30

$373

Best flights from South Dakota to Dulles Intl
Discover carefully curated flight deals from South Dakota to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 30, 2025.

Thu 9/257:00 amFSD - IAD

1 stop8h 50mAmerican Airlines

Sun 9/286:25 amIAD - FSD

1 stop7h 14mAmerican Airlines

Deal found 6/28

$259

Tue 7/224:30 pmRAP - IAD

1 stop4h 55mDelta

Tue 7/296:39 pmIAD - RAP

1 stop5h 52mDelta

Deal found 6/28

$269

Sat 8/98:00 amFSD - IAD

1 stop4h 49mUnited Airlines

Thu 8/143:39 pmIAD - FSD

1 stop7h 21mUnited Airlines

Deal found 6/27

$285

Thu 8/288:30 pmRAP - IAD

3 stops17h 45mMultiple Airlines

Mon 9/111:24 amIAD - RAP

1 stop7h 04mMultiple Airlines

Deal found 6/30

$373

Fri 7/256:16 pmFSD - IAD

1 stop4h 09mDelta

Sun 7/276:39 pmIAD - FSD

1 stop6h 05mDelta

Deal found 6/30

$309

Tue 7/156:30 amRAP - IAD

1 stop5h 19mUnited Airlines

Sat 7/193:39 pmIAD - RAP

1 stop8h 07mUnited Airlines

Deal found 6/30

$319

Fri 10/36:00 amRAP - IAD

1 stop8h 50mAmerican Airlines

Mon 10/66:11 amIAD - RAP

1 stop17h 39mAmerican Airlines

Deal found 6/30

$367

Sun 7/136:38 pmFSD - IAD

2 stops17h 16mMultiple Airlines

Thu 7/1711:58 amIAD - FSD

3 stops24h 09mMultiple Airlines

Deal found 6/28

$481

Last-minute flights from South Dakota to Dulles Intl
Discover last-minute flight deals from South Dakota to Dulles Intl. Data last updated June 30, 2025 and is based on user searches.

Wed 7/95:15 amFSD - IAD

1 stop5h 35mDelta

Sat 7/126:00 amIAD - FSD

2 stops7h 21mDelta

Deal found 6/28

$363

Wed 7/96:21 amFSD - IAD

2 stops9h 48mAmerican Airlines

Sun 7/136:27 amIAD - FSD

1 stop7h 19mAmerican Airlines

Deal found 6/30

$467

Wed 7/96:26 pmFSD - IAD

2 stops12h 09mUnited Airlines

Thu 7/1010:10 amIAD - FSD

1 stop7h 18mUnited Airlines

Deal found 6/28

$628

Thu 7/103:25 pmRAP - IAD

1 stop5h 45mUnited Airlines

Mon 7/145:13 pmIAD - RAP

1 stop6h 33mUnited Airlines

Deal found 6/30

$349

Thu 7/1010:53 amRAP - IAD

2 stops11h 41mDelta

Mon 7/147:04 pmIAD - RAP

1 stop5h 27mDelta

Deal found 6/30

$484

Thu 7/106:38 pmFSD - IAD

2 stops17h 16mMultiple Airlines

Sun 7/2011:58 amIAD - FSD

2 stops24h 09mMultiple Airlines

Deal found 6/29

$506

Sun 7/136:38 pmFSD - IAD

2 stops17h 16mMultiple Airlines

Thu 7/1711:58 amIAD - FSD

3 stops24h 09mMultiple Airlines

Deal found 6/28

$481

Tue 7/156:30 amRAP - IAD

1 stop5h 19mUnited Airlines

Sat 7/193:39 pmIAD - RAP

1 stop8h 07mUnited Airlines

Deal found 6/30

$319

Wed 7/166:26 pmFSD - IAD

1 stop5h 04mUnited Airlines

Tue 8/53:39 pmIAD - FSD

1 stop7h 21mUnited Airlines

Deal found 6/30

$300

Tue 7/224:30 pmRAP - IAD

1 stop4h 55mDelta

Tue 7/296:39 pmIAD - RAP

1 stop5h 52mDelta

Deal found 6/28

$269

Tue 7/226:01 pmRAP - IAD

2 stops16h 48mAmerican Airlines

Tue 7/296:35 amIAD - RAP

2 stops11h 33mAmerican Airlines

Deal found 6/30

$537

Fri 7/256:16 pmFSD - IAD

1 stop4h 09mDelta

Sun 7/276:39 pmIAD - FSD

1 stop6h 05mDelta

Deal found 6/30

$309

One-way flights from South Dakota to Dulles Intl
Search for one-way flight options from South Dakota to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated June 30, 2025.

Sat 8/210:14 amRAP - IAD

2 stops22h 54mAllegiant Air

Deal found 6/28

$169

Fri 7/2512:03 pmRAP - IAD

1 stop8h 43mAmerican Airlines

Deal found 6/29

$206

Thu 7/244:38 pmRAP - IAD

1 stop6h 07mUnited Airlines

Deal found 6/29

$246

Thu 7/249:59 pmRAP - IAD

3 stops35h 44mMultiple Airlines

Deal found 6/29

$275

Sat 11/156:20 amRAP - IAD

1 stop5h 14mDelta

Deal found 6/30

$328

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Thu 9/25

7:00 am-4:50 pm

1 stop8h 50m

Washington, D.C. Dulles Intl

Sun 9/28

6:25 am-12:39 pm

1 stop7h 14m

$259

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Tue 7/22

4:30 pm-11:25 pm

1 stop4h 55m

Washington, D.C. Dulles Intl

Tue 7/29

6:39 pm-10:31 pm

1 stop5h 52m

$269

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sat 8/9

8:00 am-1:49 pm

1 stop4h 49m

Washington, D.C. Dulles Intl

Thu 8/14

3:39 pm-10:00 pm

1 stop7h 21m

$285

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Fri 7/25

6:16 pm-11:25 pm

1 stop4h 09m

Washington, D.C. Dulles Intl

Sun 7/27

6:39 pm-11:44 pm

1 stop6h 05m

$309

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Tue 7/15

6:30 am-1:49 pm

1 stop5h 19m

Washington, D.C. Dulles Intl

Sat 7/19

3:39 pm-9:46 pm

1 stop8h 07m

$319

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Fri 10/3

6:00 am-4:50 pm

1 stop8h 50m

Washington, D.C. Dulles Intl

Mon 10/6

6:11 am-9:50 pm

1 stop17h 39m

$367

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Thu 8/28

8:30 pm-4:15 pm

3 stops17h 45m

Washington, D.C. Dulles Intl

Mon 9/1

11:24 am-4:28 pm

1 stop7h 04m

$373

Sioux FallsWashington, D.C.

FSD - IAD

FSDIAD

Sioux Falls Joe Foss Field

Sun 7/13

6:38 pm-12:54 pm

2 stops17h 16m

Washington, D.C. Dulles Intl

Thu 7/17

11:58 am-11:07 am

3 stops24h 09m

$481

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Sat 8/2

10:14 am-11:08 am

2 stops22h 54m

$169

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Fri 7/25

12:03 pm-10:46 pm

1 stop8h 43m

$206

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/28

Showing 1-10 of 15 results

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 July is currently the most expensive (average of $345). 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

Read through reviews of airlines operating flights from South Dakota to Washington, D.C. Dulles Intl Airport, such as Delta, United Airlines, and American Airlines. 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

7,969 reviews

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

7,969 reviews

Delta

8.0

Very good

7,969 reviews

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

8,852 reviews

Delta

8.0

Very good

7,969 reviews

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!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,969 reviews

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!

Allegiant Air

7.2

Good

710 reviews

Delta

8.0

Very good

7,969 reviews

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

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 ($169), American Airlines ($206), and United Airlines ($246).
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 July is currently the most expensive (average of $345). 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

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Woodbridge

Alexandria

Tysons

Silver Spring

Linthicum Heights

Fredericksburg

Gaithersburg

Fairfax

Easton

Towson

Falls Church

Rockville

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National Harbor

Manassas

Dundalk

Waldorf

Bowie

Hanover

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from South Dakota to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$216	Average$358	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$288	Average$535	FlexibilityNo cancel fee	On-time69%

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$169+ 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 8/2. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from South Dakota to Dulles Intl with Cheapflights

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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 June 30, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from South Dakota to Dulles Intl

Cheapest flights from South Dakota to Dulles IntlExplore 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 June 30, 2025.

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 June 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from South Dakota to Washington, D.C. Dulles Intl Airport that are best for you.

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.

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?

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from South Dakota to Washington, D.C. Dulles Intl Airport, such as Delta, United Airlines, and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

Traveling to a place near South Dakota?

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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.

Top 2 airlines flying from South Dakota to Dulles Intl

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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 June 30, 2025.