What are the cheapest airlines to fly from Washington, D.C. to South Dakota one-way?

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $117. Users have also found prices from $152 and $178 on Allegiant Air and Delta, respectively.

In terms of precipitation, rainfall in South Dakota ranges from 0.6 - 3.9 inches per month. June is typically the wettest month, when rainfall can reach 3.9 in. January is typically the driest time to visit South Dakota when rainfall is around 0.6 in.

If weather is an important factor for your trip to South Dakota, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

What are the most popular routes from Washington, D.C. to South Dakota?

The most popular route from Washington, D.C. to South Dakota is Washington, D.C. Dulles Intl - Sioux Falls Joe Foss Field. You may also consider Washington, D.C. Dulles Intl - Rapid City or Baltimore/Washington - Sioux Falls Joe Foss Field.

What are the most popular airlines that fly from Washington, D.C. to South Dakota?

American Airlines, Delta and United Airlines are the most popular airlines when flying from Washington, D.C. to South Dakota.

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

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, February can be a great choice for travel to South Dakota. Flights to South Dakota from Washington, D.C. in February are about $423 on average during February, but can be found for as low as $258.

Can I find deals for flights from Washington, D.C. to South Dakota that include hotel bookings?

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

How can I find direct flights from Washington, D.C. to South Dakota?

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

Can I find deals for business class flights from Washington, D.C. to South Dakota?

Yes. Cheapflights offers flight deals from Washington, D.C. to South Dakota by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$119+ Flights from Washington, D.C. to South Dakota

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Cheap flight deals from Washington, D.C. to South Dakota

Round-trip from	$225 (FlightHub)
One-way from	$117 (FlightHub)
Popular in	July
Cheapest in	February
Average price	$788

From Washington, D.C. (WAS) to South Dakota

Search Deals

One-way flight from Washington, D.C. (WAS) to South Dakota

Search Deals

Highest demand for flights based on searches. 26% potential increase in price ($150 potential increase over avg. RT price).

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Cheapest flight prices on average. 8% potential price decrease ($33 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Washington, D.C. to South Dakota

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

Wed 8/135:26 pmBWI - FSD

1 stop21h 36mFrontier

Wed 8/203:07 pmFSD - BWI

1 stop25h 37mFrontier

Deal found 7/30

$225

Wed 8/137:00 amDCA - FSD

1 stop12h 54mFrontier

Wed 8/203:07 pmFSD - DCA

1 stop24h 52mFrontier

Deal found 7/29

$225

Tue 8/197:10 pmBWI - FSD

1 stop5h 36mDelta

Wed 8/275:27 amFSD - BWI

1 stop6h 03mDelta

Deal found 7/28

$259

Wed 8/2011:30 amDCA - FSD

1 stop6h 05mAmerican Airlines

Sat 8/236:00 amFSD - DCA

1 stop7h 32mAmerican Airlines

Deal found 7/29

$259

Tue 8/196:50 pmIAD - FSD

1 stop5h 56mDelta

Sun 8/315:00 amFSD - IAD

1 stop7h 25mDelta

Deal found 7/28

$259

Wed 8/204:00 pmDCA - FSD

1 stop8h 06mDelta

Sat 8/235:00 amFSD - DCA

2 stops9h 00mDelta

Deal found 7/28

$264

Wed 11/58:40 amDCA - RAP

1 stop7h 10mAmerican Airlines

Tue 11/112:20 pmRAP - DCA

1 stop6h 40mAmerican Airlines

Deal found 7/30

$269

Wed 11/56:18 amIAD - RAP

1 stop5h 35mDelta

Tue 11/1110:40 amRAP - IAD

1 stop5h 16mDelta

Deal found 7/28

$269

Wed 11/56:02 amBWI - RAP

1 stop9h 48mAmerican Airlines

Tue 11/115:34 amRAP - BWI

1 stop6h 56mAmerican Airlines

Deal found 7/30

$269

Sat 9/131:50 pmBWI - RAP

2 stops10h 40mDelta

Wed 9/174:24 pmRAP - BWI

1 stop5h 25mDelta

Deal found 7/28

$274

Tue 8/1910:25 amIAD - RAP

2 stops12h 33mAmerican Airlines

Tue 8/265:39 amRAP - IAD

2 stops11h 13mAmerican Airlines

Deal found 7/29

$277

Sat 9/206:15 amBWI - RAP

1 stop6h 07mUnited Airlines

Wed 9/248:32 amRAP - BWI

1 stop8h 40mUnited Airlines

Deal found 7/29

$280

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

Wed 8/135:26 pmBWI - FSD

1 stop21h 36mFrontier

Wed 8/203:07 pmFSD - BWI

1 stop25h 37mFrontier

Deal found 7/30

$225

Tue 8/197:10 pmBWI - FSD

1 stop5h 36mDelta

Wed 8/275:27 amFSD - BWI

1 stop6h 03mDelta

Deal found 7/28

$259

Wed 8/2011:30 amDCA - FSD

1 stop6h 05mAmerican Airlines

Sat 8/236:00 amFSD - DCA

1 stop7h 32mAmerican Airlines

Deal found 7/29

$259

Sat 9/206:25 amDCA - RAP

1 stop5h 57mUnited Airlines

Wed 9/241:35 pmRAP - DCA

1 stop7h 08mUnited Airlines

Deal found 7/29

$269

Thu 8/288:09 amBWI - RAP

1 stop13h 31mMultiple Airlines

Thu 9/45:39 pmRAP - BWI

1 stop8h 51mMultiple Airlines

Deal found 7/29

$285

Wed 8/137:00 amDCA - FSD

1 stop12h 54mFrontier

Wed 8/203:07 pmFSD - DCA

1 stop24h 52mFrontier

Deal found 7/29

$225

Tue 8/196:50 pmIAD - FSD

1 stop5h 56mDelta

Sat 8/305:27 amFSD - IAD

1 stop8h 04mDelta

Deal found 7/28

$259

Fri 9/51:32 pmBWI - RAP

1 stop9h 21mAmerican Airlines

Tue 9/91:12 pmRAP - BWI

1 stop7h 30mAmerican Airlines

Deal found 7/27

$269

Sat 9/206:15 amBWI - RAP

1 stop6h 07mUnited Airlines

Wed 9/248:32 amRAP - BWI

1 stop8h 40mUnited Airlines

Deal found 7/29

$280

Wed 8/204:00 pmDCA - FSD

1 stop8h 06mDelta

Sat 8/235:00 amFSD - DCA

2 stops9h 00mDelta

Deal found 7/28

$264

Tue 10/71:44 pmDCA - RAP

2 stops9h 35mAmerican Airlines

Sat 10/184:58 pmRAP - DCA

1 stop6h 01mAmerican Airlines

Deal found 7/29

$274

Sat 9/206:30 amIAD - RAP

1 stop5h 52mUnited Airlines

Wed 9/2410:15 amRAP - IAD

1 stop6h 58mUnited Airlines

Deal found 7/29

$285

Last-minute flights from Washington, D.C. to South Dakota
Discover last-minute flight deals from Washington, D.C. to South Dakota. Data last updated July 30, 2025 and is based on user searches.

Mon 8/47:00 amDCA - FSD

1 stop12h 37mFrontier

Fri 8/87:32 pmFSD - DCA

1 stop15h 32mFrontier

Deal found 7/29

$245

Mon 8/49:39 amBWI - FSD

1 stop10h 37mMultiple Airlines

Fri 8/89:39 pmFSD - BWI

2 stops22h 27mMultiple Airlines

Deal found 7/29

$447

Tue 8/58:10 amBWI - RAP

1 stop6h 36mUnited Airlines

Tue 8/121:43 pmRAP - BWI

1 stop5h 59mUnited Airlines

Deal found 7/28

$429

Tue 8/55:00 amDCA - RAP

1 stop9h 17mAmerican Airlines

Tue 8/1212:50 pmRAP - DCA

1 stop7h 25mAmerican Airlines

Deal found 7/29

$469

Tue 8/55:00 amBWI - RAP

1 stop7h 49mAmerican Airlines

Tue 8/126:04 pmRAP - BWI

1 stop15h 48mAmerican Airlines

Deal found 7/29

$476

Wed 8/63:40 pmDCA - FSD

2 stops9h 04mDelta

Wed 8/135:00 amFSD - DCA

1 stop5h 04mDelta

Deal found 7/30

$334

Wed 8/64:45 pmBWI - FSD

1 stop7h 18mDelta

Wed 8/132:30 pmFSD - BWI

2 stops8h 53mDelta

Deal found 7/30

$344

Thu 8/710:20 amDCA - FSD

1 stop7h 15mAmerican Airlines

Thu 8/1412:47 pmFSD - DCA

1 stop4h 40mAmerican Airlines

Deal found 7/30

$329

Sat 8/95:13 pmIAD - FSD

1 stop5h 47mUnited Airlines

Wed 8/137:55 amFSD - IAD

1 stop4h 54mUnited Airlines

Deal found 7/27

$329

Sat 8/92:00 pmIAD - FSD

2 stops10h 44mDelta

Wed 8/135:27 amFSD - IAD

1 stop5h 17mDelta

Deal found 7/27

$359

Sat 8/94:20 pmBWI - FSD

1 stop7h 46mUnited Airlines

Wed 8/137:55 amFSD - BWI

1 stop4h 53mUnited Airlines

Deal found 7/27

$370

Sat 8/96:20 pmBWI - FSD

1 stop7h 08mAmerican Airlines

Tue 8/127:01 amFSD - BWI

2 stops10h 02mAmerican Airlines

Deal found 7/27

$399

One-way flights from Washington, D.C. to South Dakota
Search for one-way flight options from Washington, D.C. to South Dakota. Find affordable one-way fares based on user searches. Data last updated July 30, 2025.

Mon 8/111:00 pmDCA - FSD

1 stop6h 37mFrontier

Deal found 7/29

$119

Sun 11/166:49 pmBWI - FSD

1 stop19h 35mFrontier

Deal found 7/30

$127

Mon 8/114:46 pmIAD - FSD

2 stops18h 37mAllegiant Air

Deal found 7/29

$152

Sun 9/146:55 pmDCA - RAP

1 stop5h 35mDelta

Deal found 7/30

$178

Mon 9/2911:58 amIAD - RAP

1 stop5h 45mDelta

Deal found 7/28

$178

Sun 8/316:00 amBWI - RAP

1 stop8h 20mAmerican Airlines

Deal found 7/30

$180

Mon 9/295:15 pmBWI - RAP

2 stops7h 15mDelta

Deal found 7/28

$185

Sat 9/276:25 pmBWI - FSD

1 stop5h 37mDelta

Deal found 7/30

$202

Sun 8/311:41 pmDCA - RAP

1 stop9h 18mAmerican Airlines

Deal found 7/30

$206

Wed 9/2410:25 amIAD - RAP

1 stop7h 37mUnited Airlines

Deal found 7/29

$208

Tue 9/96:25 amDCA - RAP

1 stop5h 57mUnited Airlines

Deal found 7/30

$217

Tue 9/96:15 amBWI - RAP

1 stop6h 07mUnited Airlines

Deal found 7/30

$218

Cheapflights 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

BaltimoreSioux Falls

BWI - FSD

BWIFSD

Baltimore/Washington

Wed 8/13

5:26 pm-2:02 pm

1 stop21h 36m

Sioux Falls Joe Foss Field

Wed 8/20

3:07 pm-5:44 pm

1 stop25h 37m

$225

Washington, D.C.Sioux Falls

DCA - FSD

DCAFSD

Washington, D.C. Reagan-National

Wed 8/13

7:00 am-6:54 pm

1 stop12h 54m

Sioux Falls Joe Foss Field

Wed 8/20

3:07 pm-4:59 pm

1 stop24h 52m

$225

BaltimoreSioux Falls

BWI - FSD

BWIFSD

Baltimore/Washington

Tue 8/19

7:10 pm-11:46 pm

1 stop5h 36m

Sioux Falls Joe Foss Field

Wed 8/27

5:27 am-12:30 pm

1 stop6h 03m

$259

Washington, D.C.Sioux Falls

DCA - FSD

DCAFSD

Washington, D.C. Reagan-National

Wed 8/20

11:30 am-4:35 pm

1 stop6h 05m

Sioux Falls Joe Foss Field

Sat 8/23

6:00 am-2:32 pm

1 stop7h 32m

$259

Washington, D.C.Sioux Falls

IAD - FSD

IADFSD

Washington, D.C. Dulles Intl

Tue 8/19

6:50 pm-11:46 pm

1 stop5h 56m

Sioux Falls Joe Foss Field

Sat 8/30

5:27 am-2:31 pm

1 stop8h 04m

$259

Washington, D.C.Sioux Falls

DCA - FSD

DCAFSD

Washington, D.C. Reagan-National

Wed 8/20

4:00 pm-11:06 pm

1 stop8h 06m

Sioux Falls Joe Foss Field

Sat 8/23

5:00 am-3:00 pm

2 stops9h 00m

$264

Washington, D.C.Rapid City

DCA - RAP

DCARAP

Washington, D.C. Reagan-National

Sat 9/20

6:25 am-10:22 am

1 stop5h 57m

Rapid City

Wed 9/24

1:35 pm-10:43 pm

1 stop7h 08m

$269

BaltimoreRapid City

BWI - RAP

BWIRAP

Baltimore/Washington

Fri 9/5

1:32 pm-8:53 pm

1 stop9h 21m

Rapid City

Tue 9/9

1:12 pm-10:42 pm

1 stop7h 30m

$269

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 9/23

6:15 am-10:12 am

1 stop5h 57m

Rapid City

Tue 9/30

4:24 pm-11:38 pm

1 stop5h 14m

$269

Washington, D.C.Rapid City

DCA - RAP

DCARAP

Washington, D.C. Reagan-National

Tue 10/7

1:44 pm-9:19 pm

2 stops9h 35m

Rapid City

Sat 10/18

4:58 pm-12:59 am

1 stop6h 01m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 43 results

...

Best time to book a flight from Washington, D.C. to South Dakota

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

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to South Dakota (average of $334). Flying from Washington, D.C. to South Dakota in December is currently the most expensive (average of $446). 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 WAS to SD?

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

Reviews of airlines servicing South Dakota

Read reviews from past customers who have flown Alaska Airlines, Delta, and United Airlines from Washington, D.C. to South Dakota. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Delta

8.0

Very good

7,980 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

United Airlines

7.4

Good

8,896 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Allegiant Air

7.2

Good

703 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

What are the cheapest airlines to fly from Washington, D.C. to South Dakota one-way?
For one-way options, check prices for Frontier. According to our data, you can fly for as low as $117. Users have also found prices from $152 and $178 on Allegiant Air and Delta, respectively.
What are the most popular routes from Washington, D.C. to South Dakota?
The most popular route from Washington, D.C. to South Dakota is Washington, D.C. Dulles Intl - Sioux Falls Joe Foss Field. You may also consider Washington, D.C. Dulles Intl - Rapid City or Baltimore/Washington - Sioux Falls Joe Foss Field.
Can I find deals for flights from Washington, D.C. to South Dakota that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to South Dakota flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to South Dakota?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to South Dakota.
Can I find deals for business class flights from Washington, D.C. to South Dakota?
Yes. Cheapflights offers flight deals from Washington, D.C. to South Dakota 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. to South Dakota?
Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to South Dakota (average of $334). Flying from Washington, D.C. to South Dakota in December is currently the most expensive (average of $446). 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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Alternative routes for Washington, D.C. to South Dakota

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Washington, D.C. to South Dakota flights

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Top 4 airlines flying from Washington, D.C. to South Dakota

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$108	Average$260	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$208	Average$435	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$258	Average$414	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$268	Average$517	FlexibilityNo cancel fee	On-time69%

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$119+ Cheap flights from Washington, D.C. (WAS) to South Dakota

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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Washington, D.C. to South Dakota

Keep the following information in mind while searching for Washington, D.C. to South Dakota flight deals. Data was last updated July 30, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Washington, D.C. to South Dakota

Cheapest flights from Washington, D.C. to South DakotaExplore the most affordable flight options available from Washington, D.C. to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Explore the most affordable flight options available from Washington, D.C. to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Washington, D.C. to South Dakota

Have a flexible travel schedule? Discover the best time to fly to South Dakota from Washington, D.C. with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to South Dakota

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

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

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

Reviews of airlines servicing South Dakota

Read reviews from past customers who have flown Alaska Airlines, Delta, and United Airlines from Washington, D.C. to South Dakota. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to South Dakota. 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 Washington, D.C. to South Dakota one-way?

What are the most popular routes from Washington, D.C. to South Dakota?

Can I find deals for flights from Washington, D.C. to South Dakota that include hotel bookings?

How can I find direct flights from Washington, D.C. to South Dakota?

Can I find deals for business class flights from Washington, D.C. to South Dakota?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington, D.C. to South Dakota

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Washington, D.C. to South Dakota

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