How long does it take to fly to Washington, D.C. Dulles Intl Airport?

Flight times from South Dakota to Washington, D.C. Dulles Intl Airport vary, but if you’re flying out of Sioux Falls and flying into Washington, D.C. Dulles Intl Airport (one of the most popular routes), then the duration is 4h 42m on average. Another popular route from South Dakota to Washington, D.C. Dulles Intl Airport is flying from Rapid City to Washington, D.C. Dulles Intl Airport, which will take roughly 4h 45m. Keep in mind that layovers or delays could extend your travel time.

What is the cheapest airline that flies from South Dakota to Washington, D.C. Dulles Intl?

Delta and United Airlines are the most popular carriers operating from South Dakota to Washington, D.C. Dulles Intl

How many operators does momondo search for flights from South Dakota to Washington, D.C. Dulles Intl Airport?

As of September 2026, there are 2 operators available to choose from for flights from South Dakota to Washington, D.C. Dulles Intl Airport.

How old do you have to be to fly from South Dakota to Washington, D.C. Dulles Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from South Dakota to Washington, D.C. Dulles Intl Airport.

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$268 Cheap Flights from South Dakota to Washington, D.C. Dulles Intl Airport in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from South Dakota to Washington, D.C.

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:36 pm - 11:21 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

4h 45m1 stop Minneapolis St Paul

12:01 pm - 3:54 pmIAD Washington, D.C. Dulles Intl-RAP Rapid City

5h 53m1 stop Minneapolis St Paul

$301Delta

Wed, Nov 11 - Wed, Nov 18

4:38 pm - 11:26 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

4h 48m1 stop Minneapolis St Paul

7:23 am - 10:45 amIAD Washington, D.C. Dulles Intl-RAP Rapid City

5h 22m1 stop Minneapolis St Paul

$301Delta

Sat, Oct 24 - Sat, Oct 31

5:00 am - 12:55 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

5h 55m1 stop Denver Intl

2:05 pm - 8:43 pmIAD Washington, D.C. Dulles Intl-RAP Rapid City

8h 38m1 stop Denver Intl

$301United Airlines

Sat, Nov 7 - Sat, Nov 14

4:36 pm - 11:21 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

4h 45m1 stop Minneapolis St Paul

6:00 am - 1:43 pmIAD Washington, D.C. Dulles Intl-RAP Rapid City

9h 43m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul

$306Delta

Wed, Nov 11 - Wed, Nov 18

4:38 pm - 11:26 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

4h 48m1 stop Minneapolis St Paul

5:08 pm - 10:30 pmIAD Washington, D.C. Dulles Intl-RAP Rapid City

7h 22m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul

$306Delta

Sat, Oct 24 - Sat, Oct 31

6:00 am - 1:38 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

5h 38m1 stop Chicago O'Hare Intl

2:10 pm - 7:51 pmIAD Washington, D.C. Dulles Intl-RAP Rapid City

7h 41m1 stop Denver Intl

$330United Airlines

Fri, Dec 4 - Tue, Dec 8

11:17 am - 7:26 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

6h 09m1 stop Denver Intl

6:11 am - 10:31 amIAD Washington, D.C. Dulles Intl-RAP Rapid City

6h 20m1 stop Chicago O'Hare Intl

$330United Airlines

Sat, Oct 24 - Sat, Oct 31

6:20 am - 2:18 pmFSD Sioux Falls Joe Foss Field-IAD Washington, D.C. Dulles Intl

6h 58m1 stop Dallas/Fort Worth

2:42 pm - 8:54 pmIAD Washington, D.C. Dulles Intl-FSD Sioux Falls Joe Foss Field

7h 12m1 stop Dallas/Fort Worth

$349American Airlines

Wed, Oct 28 - Mon, Nov 2

6:00 am - 1:43 pmFSD Sioux Falls Joe Foss Field-IAD Washington, D.C. Dulles Intl

6h 43m1 stop Dallas/Fort Worth

9:33 am - 8:53 pmIAD Washington, D.C. Dulles Intl-FSD Sioux Falls Joe Foss Field

12h 20m2 stops Charlotte Douglas Dallas/Fort Worth

$354American Airlines

Thu, Nov 19 - Mon, Nov 23

7:11 am - 7:33 pmFSD Sioux Falls Joe Foss Field-IAD Washington, D.C. Dulles Intl

11h 22m2 stops Chicago O'Hare Intl Charlotte Douglas

2:42 pm - 8:57 pmIAD Washington, D.C. Dulles Intl-FSD Sioux Falls Joe Foss Field

7h 15m1 stop Dallas/Fort Worth

$354American Airlines

Fri, Dec 4 - Sun, Dec 6

Cheap last minute flights

Enter your travel dates to find the best prices.

12:56 pm - 8:24 pmFSD Sioux Falls Joe Foss Field-IAD Washington, D.C. Dulles Intl

6h 28m1 stop Dallas/Fort Worth

6:52 am - 12:16 pmIAD Washington, D.C. Dulles Intl-FSD Sioux Falls Joe Foss Field

6h 24m1 stop Dallas/Fort Worth

$489American Airlines

Fri, Oct 2 - Sun, Oct 4

5:00 am - 1:30 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

6h 30m1 stop Denver Intl

6:10 am - 10:15 amIAD Washington, D.C. Dulles Intl-RAP Rapid City

6h 05m1 stop Chicago O'Hare Intl

$492United Airlines

Sat, Oct 3 - Sat, Oct 17

1:16 pm - 10:51 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

7h 35m1 stop Charlotte Douglas

3:08 pm - 9:52 pmIAD Washington, D.C. Dulles Intl-RAP Rapid City

8h 44m1 stop Dallas/Fort Worth

$499American Airlines

Thu, Oct 1 - Sun, Oct 4

1:16 pm - 10:51 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

7h 35m1 stop Charlotte Douglas

5:01 am - 11:15 amIAD Washington, D.C. Dulles Intl-RAP Rapid City

8h 14m2 stops Charlotte Douglas Chicago O'Hare Intl

$504American Airlines

Thu, Oct 1 - Sun, Oct 4

6:30 am - 5:51 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

9h 21m1 stop Dallas/Fort Worth

5:01 am - 11:14 amIAD Washington, D.C. Dulles Intl-RAP Rapid City

8h 13m1 stop Charlotte Douglas

$526American Airlines

Thu, Oct 1 - Sun, Oct 4

2:30 pm - 12:41 amRAP Rapid City-IAD Washington, D.C. Dulles Intl

8h 11m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

6:10 am - 10:01 amIAD Washington, D.C. Dulles Intl-RAP Rapid City

5h 51m1 stop Minneapolis St Paul

$531Delta

Thu, Oct 1 - Sun, Oct 4

2:30 pm - 12:41 amRAP Rapid City-IAD Washington, D.C. Dulles Intl

8h 11m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

6:10 am - 1:50 pmIAD Washington, D.C. Dulles Intl-RAP Rapid City

9h 40m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul

$536Delta

Thu, Oct 1 - Sun, Oct 4

7:50 am - 4:01 pmFSD Sioux Falls Joe Foss Field-IAD Washington, D.C. Dulles Intl

7h 11m1 stop Chicago O'Hare Intl

5:20 pm - 11:11 pmIAD Washington, D.C. Dulles Intl-FSD Sioux Falls Joe Foss Field

6h 51m1 stop Chicago O'Hare Intl

$540United Airlines

Sat, Oct 3 - Wed, Oct 14

7:50 am - 4:01 pmFSD Sioux Falls Joe Foss Field-IAD Washington, D.C. Dulles Intl

7h 11m1 stop Chicago O'Hare Intl

5:20 pm - 11:11 pmIAD Washington, D.C. Dulles Intl-FSD Sioux Falls Joe Foss Field

6h 51m1 stop Chicago O'Hare Intl

$540United Airlines

Sat, Oct 3 - Tue, Oct 13

2:30 pm - 11:23 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

6h 53m1 stop Minneapolis St Paul

6:00 am - 1:50 pmIAD Washington, D.C. Dulles Intl-RAP Rapid City

9h 50m2 stops Atlanta Hartsfield-Jackson Minneapolis St Paul

$558Delta

Thu, Oct 1 - Sun, Oct 4

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Delta flights from South Dakota to Washington, D.C. Dulles Intl Airport

Our best Delta deals on South Dakota to Washington, D.C. Dulles Intl Airport flight tickets

Delta

Oct 24

RAP4:38 pmRapid City

4h 48m

1 stop

IAD11:26 pmWashington, D.C. Dulles Intl

Oct 31

IAD7:23 amWashington, D.C. Dulles Intl

5h 22m

1 stop

RAP10:45 amRapid City

$301

Delta

Oct 24

RAP4:38 pmRapid City

4h 48m

1 stop

IAD11:26 pmWashington, D.C. Dulles Intl

Oct 31

IAD5:08 pmWashington, D.C. Dulles Intl

7h 22m

2 stops

RAP10:30 pmRapid City

$306

Delta

Oct 24

RAP4:38 pmRapid City

4h 48m

1 stop

IAD11:26 pmWashington, D.C. Dulles Intl

Oct 31

IAD7:23 amWashington, D.C. Dulles Intl

5h 22m

1 stop

RAP10:45 amRapid City

$330

United Airlines flights from South Dakota to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on South Dakota to Washington, D.C. Dulles Intl Airport flight tickets

United Airlines

Oct 24

FSD3:03 pmSioux Falls Joe Foss Field

6h 49m

1 stop

IAD10:52 pmWashington, D.C. Dulles Intl

Oct 31

IAD5:29 pmWashington, D.C. Dulles Intl

5h 08m

1 stop

FSD9:37 pmSioux Falls Joe Foss Field

$349

United Airlines

Oct 16

RAP1:37 pmRapid City

5h 34m

1 stop

IAD9:11 pmWashington, D.C. Dulles Intl

Oct 19

IAD6:10 amWashington, D.C. Dulles Intl

6h 05m

1 stop

RAP10:15 amRapid City

$359

United Airlines

Nov 12

FSD6:00 amSioux Falls Joe Foss Field

6h 35m

1 stop

IAD1:35 pmWashington, D.C. Dulles Intl

Nov 15

IAD6:10 amWashington, D.C. Dulles Intl

5h 22m

1 stop

FSD10:32 amSioux Falls Joe Foss Field

$360

momondo 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

Cheapest round-trip

Rapid CityWashington, D.C.

RAP Rapid City - IAD Washington, D.C. Dulles Intl

RAPIAD

Rapid City

Wed 11/11

4:36 pm-11:21 pm

1 stop4h 45m

Washington, D.C. Dulles Intl

Wed 11/18

12:01 pm-3:54 pm

1 stop5h 53m

$301

Quickest round-trip

Rapid CityWashington, D.C.

RAP Rapid City - IAD Washington, D.C. Dulles Intl

RAPIAD

Rapid City

Sat 10/24

4:38 pm-11:26 pm

1 stop4h 48m

Washington, D.C. Dulles Intl

Sat 10/31

7:23 am-10:45 am

1 stop5h 22m

$301

Rapid CityWashington, D.C.

RAP Rapid City - IAD Washington, D.C. Dulles Intl

RAPIAD

Rapid City

Sat 11/7

5:00 am-12:55 pm

1 stop5h 55m

Washington, D.C. Dulles Intl

Sat 11/14

2:05 pm-8:43 pm

1 stop8h 38m

$301

Rapid CityWashington, D.C.

RAP Rapid City - IAD Washington, D.C. Dulles Intl

RAPIAD

Rapid City

Wed 11/11

4:36 pm-11:21 pm

1 stop4h 45m

Washington, D.C. Dulles Intl

Wed 11/18

6:00 am-1:43 pm

2 stops9h 43m

$306

Rapid CityWashington, D.C.

RAP Rapid City - IAD Washington, D.C. Dulles Intl

RAPIAD

Rapid City

Sat 10/24

4:38 pm-11:26 pm

1 stop4h 48m

Washington, D.C. Dulles Intl

Sat 10/31

5:08 pm-10:30 pm

2 stops7h 22m

$306

Rapid CityWashington, D.C.

RAP Rapid City - IAD Washington, D.C. Dulles Intl

RAPIAD

Rapid City

Fri 12/4

6:00 am-1:38 pm

1 stop5h 38m

Washington, D.C. Dulles Intl

Tue 12/8

2:10 pm-7:51 pm

1 stop7h 41m

$330

Rapid CityWashington, D.C.

RAP Rapid City - IAD Washington, D.C. Dulles Intl

RAPIAD

Rapid City

Sat 10/24

11:17 am-7:26 pm

1 stop6h 09m

Washington, D.C. Dulles Intl

Sat 10/31

6:11 am-10:31 am

1 stop6h 20m

$330

Sioux FallsWashington, D.C.

FSD Sioux Falls Joe Foss Field - IAD Washington, D.C. Dulles Intl

FSDIAD

Sioux Falls Joe Foss Field

Wed 10/28

6:20 am-2:18 pm

1 stop6h 58m

Washington, D.C. Dulles Intl

Mon 11/2

2:42 pm-8:54 pm

1 stop7h 12m

$349

Sioux FallsWashington, D.C.

FSD Sioux Falls Joe Foss Field - IAD Washington, D.C. Dulles Intl

FSDIAD

Sioux Falls Joe Foss Field

Thu 11/19

6:00 am-1:43 pm

1 stop6h 43m

Washington, D.C. Dulles Intl

Mon 11/23

9:33 am-8:53 pm

2 stops12h 20m

$354

Sioux FallsWashington, D.C.

FSD Sioux Falls Joe Foss Field - IAD Washington, D.C. Dulles Intl

FSDIAD

Sioux Falls Joe Foss Field

Fri 12/4

7:11 am-7:33 pm

2 stops11h 22m

Washington, D.C. Dulles Intl

Sun 12/6

2:42 pm-8:57 pm

1 stop7h 15m

$354

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from South Dakota to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

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

In general, March is the cheapest month to fly from South Dakota to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of March, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $0.

Cheap South Dakota to Washington, D.C. Dulles Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from South Dakota to Washington, D.C. Dulles Intl Airport

Best Price Found	$268
Fastest flight time	4h 42m
Direct flights	None

The best one-way flight to Washington, D.C. Dulles Intl Airport from South Dakota in the past 72 hours is $268. The best round-trip flight deal from South Dakota to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $301.

The fastest flight from South Dakota to Washington, D.C. Dulles Intl Airport takes 4h 42m

There are no direct flights from South Dakota to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from South Dakota to Washington, D.C. Dulles Intl Airport.

Search flight deals

Frequently asked questions about flying from South Dakota to Washington, D.C. Dulles Intl Airport

When did momondo last update prices for flights from South Dakota to Washington, D.C. Dulles Intl Airport?
Prices for flights from South Dakota to Washington, D.C. Dulles Intl Airport are updated daily.
How many operators does momondo search for flights from South Dakota to Washington, D.C. Dulles Intl Airport?
As of September 2026, there are 2 operators available to choose from for flights from South Dakota to Washington, D.C. Dulles Intl Airport.
How old do you have to be to fly from South Dakota to Washington, D.C. Dulles Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from South Dakota to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from South Dakota to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from South Dakota to Washington, D.C. Dulles Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $288	Free Cancellation	Rating 7.4 10,246 reviews		Search United Airlines flights
Delta	PriceFrom $328	Free Cancellation	Rating 7.8 8,604 reviews		Search Delta flights

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We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from South Dakota to Washington, D.C. for you.

Can I find flights from South Dakota to Washington, D.C. with flexible booking policies on momondo?

All flight searches from South Dakota to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

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Once all potential South Dakota to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from South Dakota to Washington, D.C. right now. Can momondo alert me if prices change?

Price alerts on flights to Washington, D.C. from South Dakota are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from South Dakota to Washington, D.C. from $268

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from South Dakota to Washington, D.C. departing on 11/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from South Dakota to Washington, D.C. Dulles Intl Airport

Our best Delta deals on South Dakota to Washington, D.C. Dulles Intl Airport flight tickets

United Airlines flights from South Dakota to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on South Dakota to Washington, D.C. Dulles Intl Airport flight tickets

momondo 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.

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from South Dakota to Washington, D.C. Dulles Intl Airport

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

What is the cheapest airline that flies from South Dakota to Washington, D.C. Dulles Intl?

How long does it take to fly to Washington, D.C. Dulles Intl Airport?

Cheap South Dakota to Washington, D.C. Dulles Intl Airport flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from South Dakota to Washington, D.C. Dulles Intl Airport

Best airlines flying from South Dakota to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from South Dakota to Washington, D.C. Dulles Intl Airport with momondo

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Why use momondo?

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

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