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

Frontier, Sun Country Air, and American Airlines are the most popular carriers operating from Washington, D.C. to South Dakota

What airlines fly to South Dakota?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to South Dakota from Washington, D.C. according to our data. United Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to South Dakota. Keep in mind that there are 3 different airlines that fly to South Dakota on a routine basis, so you have a few additional options to choose from.

How long is the flight from Washington, D.C. to South Dakota?

The flight from Washington, D.C. to South Dakota depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Washington, D.C. (a popular airport in Washington, D.C.) to Sioux Falls (the most popular airport in South Dakota), then the flight time is 5h 03m on average. If you fly from Baltimore (another popular airport in Washington, D.C.) to Sioux Falls, then the average flight time is 5h 11m.

When did momondo last update prices for flights from Washington, D.C. to South Dakota?

Prices for flights from Washington, D.C. to South Dakota were last updated today.

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

The number of operators available for flights from Washington, D.C. to South Dakota is 3 as of June 2026.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to South Dakota.

What documentation or ID do you need to fly to South Dakota?

The travel and health documents you'll need for your trip to South Dakota may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at South Dakota. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$162 Cheap Flights from Washington, D.C. to South Dakota in 2026

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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:05 am - 10:02 am

DCA

RAP

5h 57m

1 stop

4:30 pm - 11:50 pm

RAP

DCA

5h 20m

1 stop

$271Delta

Wed, Aug 19 - Tue, Aug 25

6:00 am - 10:02 am

IAD

RAP

6h 02m

1 stop

2:32 pm - 11:20 pm

RAP

IAD

6h 48m

1 stop

$271Delta

Wed, Aug 19 - Wed, Aug 26

7:00 am - 7:23 pm

DCA

FSD

13h 23m

1 stop

8:14 pm - 12:57 pm

FSD

DCA

15h 43m

1 stop

$294Frontier

Mon, Aug 17 - Fri, Aug 21

1:59 pm - 7:23 pm

DCA

FSD

6h 24m

1 stop

8:08 pm - 12:51 pm

FSD

DCA

15h 43m

1 stop

$300Frontier

Fri, Jul 24 - Fri, Jul 31

7:18 pm - 11:16 pm

DCA

RAP

5h 58m

1 stop

1:35 pm - 10:54 pm

RAP

DCA

7h 19m

1 stop

$318United Airlines

Tue, Jun 23 - Wed, Jul 15

8:06 pm - 12:18 am

DCA

FSD

5h 12m

1 stop

6:24 am - 12:57 pm

FSD

DCA

5h 33m

1 stop

$319American Airlines

Tue, Aug 4 - Wed, Aug 19

6:09 pm - 9:07 am

IAD

FSD

39h 58m

2 stops

9:57 am - 2:02 pm

FSD

IAD

27h 05m

1 stop

$321Multiple Airlines

Wed, Aug 5 - Fri, Aug 14

10:16 am - 4:11 pm

DCA

FSD

6h 55m

1 stop

1:01 pm - 10:20 pm

FSD

DCA

8h 19m

2 stops

$324American Airlines

Sat, Jul 4 - Sat, Jul 11

6:30 am - 10:24 am

DCA

RAP

5h 54m

1 stop

6:00 am - 2:22 pm

RAP

DCA

6h 22m

1 stop

$325United Airlines

Wed, Jul 15 - Wed, Jul 22

2:56 pm - 9:07 am

IAD

FSD

19h 11m

1 stop

9:57 am - 12:53 pm

FSD

IAD

25h 56m

2 stops

$339Multiple Airlines

Thu, Aug 13 - Mon, Aug 17

Frontier flights from Washington, D.C. to South Dakota

Our best Frontier deals on Washington, D.C. to South Dakota flight tickets

Frontier

Aug 17

DCA7:00 amWashington, D.C. Reagan-National

13h 23m

1 stop

FSD7:23 pmSioux Falls Joe Foss Field

Aug 21

FSD8:14 pmSioux Falls Joe Foss Field

15h 43m

1 stop

DCA12:57 pmWashington, D.C. Reagan-National

$294

Frontier

Jul 24

DCA1:59 pmWashington, D.C. Reagan-National

6h 24m

1 stop

FSD7:23 pmSioux Falls Joe Foss Field

Jul 31

FSD8:08 pmSioux Falls Joe Foss Field

15h 43m

1 stop

DCA12:51 pmWashington, D.C. Reagan-National

$300

Frontier

Jun 25

DCA6:00 pmWashington, D.C. Reagan-National

26h 19m

1 stop

FSD7:19 pmSioux Falls Joe Foss Field

Jul 10

FSD8:08 pmSioux Falls Joe Foss Field

24h 51m

1 stop

DCA9:59 pmWashington, D.C. Reagan-National

$349

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

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

United Airlines

Jun 23

DCA7:18 pmWashington, D.C. Reagan-National

5h 58m

1 stop

RAP11:16 pmRapid City

Jul 15

RAP1:35 pmRapid City

7h 19m

1 stop

DCA10:54 pmWashington, D.C. Reagan-National

$318

United Airlines

Jul 15

DCA6:30 amWashington, D.C. Reagan-National

5h 54m

1 stop

RAP10:24 amRapid City

Jul 22

RAP6:00 amRapid City

6h 22m

1 stop

DCA2:22 pmWashington, D.C. Reagan-National

$325

United Airlines

Aug 7

DCA7:10 pmWashington, D.C. Reagan-National

5h 21m

1 stop

FSD11:31 pmSioux Falls Joe Foss Field

Sep 12

FSD3:08 pmSioux Falls Joe Foss Field

6h 44m

1 stop

DCA10:52 pmWashington, D.C. Reagan-National

$341

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Rapid City

DCA - RAP

DCARAP

Washington, D.C. Reagan-National

Wed 8/19

6:05 am-10:02 am

1 stop5h 57m

Rapid City

Tue 8/25

4:30 pm-11:50 pm

1 stop5h 20m

$271

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Wed 8/19

6:00 am-10:02 am

1 stop6h 02m

Rapid City

Wed 8/26

2:32 pm-11:20 pm

1 stop6h 48m

$271

Washington, D.C.Sioux Falls

DCA - FSD

DCAFSD

Washington, D.C. Reagan-National

Mon 8/17

7:00 am-7:23 pm

1 stop13h 23m

Sioux Falls Joe Foss Field

Fri 8/21

8:14 pm-12:57 pm

1 stop15h 43m

$294

Washington, D.C.Sioux Falls

DCA - FSD

DCAFSD

Washington, D.C. Reagan-National

Fri 7/24

1:59 pm-7:23 pm

1 stop6h 24m

Sioux Falls Joe Foss Field

Fri 7/31

8:08 pm-12:51 pm

1 stop15h 43m

$300

Washington, D.C.Rapid City

DCA - RAP

DCARAP

Washington, D.C. Reagan-National

Tue 6/23

7:18 pm-11:16 pm

1 stop5h 58m

Rapid City

Wed 7/15

1:35 pm-10:54 pm

1 stop7h 19m

$318

Quickest round-trip

Washington, D.C.Sioux Falls

DCA - FSD

DCAFSD

Washington, D.C. Reagan-National

Tue 8/4

8:06 pm-12:18 am

1 stop5h 12m

Sioux Falls Joe Foss Field

Wed 8/19

6:24 am-12:57 pm

1 stop5h 33m

$319

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Wed 8/5

6:09 pm-9:07 am

2 stops39h 58m

Sioux Falls Joe Foss Field

Fri 8/14

9:57 am-2:02 pm

1 stop27h 05m

$321

Washington, D.C.Sioux Falls

DCA - FSD

DCAFSD

Washington, D.C. Reagan-National

Sat 7/4

10:16 am-4:11 pm

1 stop6h 55m

Sioux Falls Joe Foss Field

Sat 7/11

1:01 pm-10:20 pm

2 stops8h 19m

$324

Washington, D.C.Rapid City

DCA - RAP

DCARAP

Washington, D.C. Reagan-National

Wed 7/15

6:30 am-10:24 am

1 stop5h 54m

Rapid City

Wed 7/22

6:00 am-2:22 pm

1 stop6h 22m

$325

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Thu 8/13

2:56 pm-9:07 am

1 stop19h 11m

Sioux Falls Joe Foss Field

Mon 8/17

9:57 am-12:53 pm

2 stops25h 56m

$339

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 Washington, D.C. to South Dakota

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 South Dakota?

The month of December is, on average, the cheapest month to fly to South Dakota from Washington, D.C., with most prices found around $142. If you aren’t able to travel to South Dakota during the month of December, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $154.

Can stopping save me money on Washington, D.C. to South Dakota flights?

You could potentially save up to 26% on your flight if you consider stops on a Washington, D.C. to South Dakota flight.

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

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

Fastest flight time	4h 56m
Direct flights	None

The fastest flight from Washington, D.C. to South Dakota takes 4h 56m

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

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

When did momondo last update prices for flights from Washington, D.C. to South Dakota?
Prices for flights from Washington, D.C. to South Dakota were last updated today.
How many operators does momondo search for flights from Washington, D.C. to South Dakota?
The number of operators available for flights from Washington, D.C. to South Dakota is 3 as of June 2026.
How old do you have to be to fly from Washington, D.C. to South Dakota?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to South Dakota.
What documentation or ID do you need to fly to South Dakota?
The travel and health documents you'll need for your trip to South Dakota may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at South Dakota. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $200	Free Cancellation	Rating 7.9 8,398 reviews	Search Delta flights
United Airlines	PriceFrom $258	Free Cancellation	Rating 7.4 9,778 reviews	Search United Airlines flights
American Airlines	PriceFrom $264	Free Cancellation	Rating 7.1 11,640 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to South Dakota?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to South Dakota. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to South Dakota from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to South Dakota?

Once you have performed a search for Washington, D.C. to South Dakota flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Washington, D.C. to South Dakota flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.