Cheap flights from Rapid City to Washington, D.C. from $256

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Rapid City to Washington, D.C. departing on 7/14. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
11:40 am - 8:15 pm
RAP
-
DCA
6h 35m
1 stop
United Airlines Logo
5:00 pm - 9:36 pm
DCA
-
RAP
6h 36m
1 stop
$284United Airlines
Fri, Apr 3 - Wed, Apr 8
United Airlines Logo
2:35 pm - 11:27 pm
RAP
-
BWI
6h 52m
1 stop
United Airlines Logo
4:12 pm - 9:55 pm
BWI
-
RAP
7h 43m
1 stop
$289United Airlines
Fri, May 1 - Sat, May 9
United Airlines Logo
2:35 pm - 11:34 pm
RAP
-
IAD
6h 59m
1 stop
United Airlines Logo
3:39 pm - 9:37 pm
IAD
-
RAP
7h 58m
1 stop
$289United Airlines
Sat, May 9 - Sun, May 24
United Airlines Logo
2:35 pm - 11:27 pm
RAP
-
BWI
6h 52m
1 stop
United Airlines Logo
3:27 pm - 9:55 pm
BWI
-
RAP
8h 28m
2 stops
$294United Airlines
Fri, May 1 - Sat, May 9
Delta Logo
4:01 pm - 11:35 pm
RAP
-
DCA
5h 34m
1 stop
Delta Logo
6:25 am - 10:20 am
DCA
-
RAP
5h 55m
1 stop
$339Delta
Fri, Apr 3 - Wed, Apr 8
Delta Logo
3:55 pm - 11:26 pm
RAP
-
BWI
5h 31m
1 stop
Delta Logo
5:26 pm - 10:23 pm
BWI
-
RAP
6h 57m
2 stops
$379Delta
Sat, May 2 - Sat, May 9
Delta Logo
10:58 am - 6:02 pm
RAP
-
DCA
5h 04m
1 stop
Delta Logo
6:05 am - 10:17 am
DCA
-
RAP
6h 12m
1 stop
$385Delta
Tue, Apr 14 - Thu, Apr 16
American Airlines Logo
4:57 pm - 11:11 am
RAP
-
BWI
16h 14m
2 stops
American Airlines Logo
5:39 am - 4:27 pm
BWI
-
RAP
12h 48m
2 stops
$435American Airlines
Fri, May 1 - Sat, May 9
American Airlines Logo
3:32 pm - 10:03 am
RAP
-
BWI
16h 31m
1 stop
American Airlines Logo
6:00 am - 11:14 am
BWI
-
RAP
7h 14m
1 stop
$438American Airlines
Tue, May 26 - Wed, Jun 3
American Airlines Logo
1:08 pm - 11:26 pm
RAP
-
IAD
8h 18m
1 stop
American Airlines Logo
8:11 pm - 11:23 am
IAD
-
RAP
17h 12m
2 stops
$502American Airlines
Sun, Apr 19 - Thu, Apr 23

United Airlines flights from Rapid City to Washington, D.C.

Our best United Airlines deals on Rapid City to Washington, D.C. flight tickets
United Airlines
Apr 3
RAP11:40 amRapid City
6h 35m
1 stop
DCA8:15 pmWashington, D.C. Reagan-National
Apr 8
DCA5:00 pmWashington, D.C. Reagan-National
6h 36m
1 stop
RAP9:36 pmRapid City
$284
United Airlines
May 9
RAP2:35 pmRapid City
6h 59m
1 stop
IAD11:34 pmWashington, D.C. Dulles Intl
May 24
IAD3:39 pmWashington, D.C. Dulles Intl
7h 58m
1 stop
RAP9:37 pmRapid City
$289
United Airlines
May 1
RAP2:35 pmRapid City
6h 52m
1 stop
BWI11:27 pmBaltimore/Washington
May 9
BWI3:27 pmBaltimore/Washington
8h 28m
2 stops
RAP9:55 pmRapid City
$294

Delta flights from Rapid City to Washington, D.C.

Our best Delta deals on Rapid City to Washington, D.C. flight tickets
Delta
Apr 3
RAP4:01 pmRapid City
5h 34m
1 stop
DCA11:35 pmWashington, D.C. Reagan-National
Apr 8
DCA6:25 amWashington, D.C. Reagan-National
5h 55m
1 stop
RAP10:20 amRapid City
$339
Delta
May 2
RAP3:55 pmRapid City
5h 31m
1 stop
BWI11:26 pmBaltimore/Washington
May 9
BWI5:26 pmBaltimore/Washington
6h 57m
2 stops
RAP10:23 pmRapid City
$379
Delta
Apr 14
RAP10:58 amRapid City
5h 04m
1 stop
DCA6:02 pmWashington, D.C. Reagan-National
Apr 16
DCA6:05 amWashington, D.C. Reagan-National
6h 12m
1 stop
RAP10:17 amRapid City
$385

momondo Fare Finder

 
Customize your flight search to find flights from Rapid City to Washington, D.C. 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, momondo users made 832,500 searches. Data last updated February 28, 2026.
Use the filters below to find and compare flights from Rapid City to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Rapid CityWashington, D.C.

RAP - DCA

RAPDCA

Rapid City

Fri 4/3

11:40 am-8:15 pm

1 stop6h 35m

Washington, D.C. Reagan-National

Wed 4/8

5:00 pm-9:36 pm

1 stop6h 36m

$284

Rapid CityBaltimore

RAP - BWI

RAPBWI

Rapid City

Fri 5/1

2:35 pm-11:27 pm

1 stop6h 52m

Baltimore/Washington

Sat 5/9

4:12 pm-9:55 pm

1 stop7h 43m

$289

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Sat 5/9

2:35 pm-11:34 pm

1 stop6h 59m

Washington, D.C. Dulles Intl

Sun 5/24

3:39 pm-9:37 pm

1 stop7h 58m

$289

Rapid CityBaltimore

RAP - BWI

RAPBWI

Rapid City

Fri 5/1

2:35 pm-11:27 pm

1 stop6h 52m

Baltimore/Washington

Sat 5/9

3:27 pm-9:55 pm

2 stops8h 28m

$294

Rapid CityWashington, D.C.

RAP - DCA

RAPDCA

Rapid City

Fri 4/3

4:01 pm-11:35 pm

1 stop5h 34m

Washington, D.C. Reagan-National

Wed 4/8

6:25 am-10:20 am

1 stop5h 55m

$339

Rapid CityBaltimore

RAP - BWI

RAPBWI

Rapid City

Sat 5/2

3:55 pm-11:26 pm

1 stop5h 31m

Baltimore/Washington

Sat 5/9

5:26 pm-10:23 pm

2 stops6h 57m

$379

Rapid CityWashington, D.C.

RAP - DCA

RAPDCA

Rapid City

Tue 4/14

10:58 am-6:02 pm

1 stop5h 04m

Washington, D.C. Reagan-National

Thu 4/16

6:05 am-10:17 am

1 stop6h 12m

$385

Rapid CityBaltimore

RAP - BWI

RAPBWI

Rapid City

Fri 5/1

4:57 pm-11:11 am

2 stops16h 14m

Baltimore/Washington

Sat 5/9

5:39 am-4:27 pm

2 stops12h 48m

$435

Rapid CityBaltimore

RAP - BWI

RAPBWI

Rapid City

Tue 5/26

3:32 pm-10:03 am

1 stop16h 31m

Baltimore/Washington

Wed 6/3

6:00 am-11:14 am

1 stop7h 14m

$438

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Sun 4/19

1:08 pm-11:26 pm

1 stop8h 18m

Washington, D.C. Dulles Intl

Thu 4/23

8:11 pm-11:23 am

2 stops17h 12m

$502

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Rapid City to Washington, D.C.

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

What is the typical price of a round-trip flight between Rapid City and Washington, D.C.?

What is the cheapest Rapid City to Washington, D.C. flight route?

Fly from Rapid City to Washington, D.C. Reagan-National for the best Rapid City - Washington, D.C. flight prices

What cabin class options are available on Rapid City to Washington, D.C. flights?

There is only 1 cabin class available to choose from on Rapid City to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Rapid City to Washington, D.C. flights?

You could potentially save up to 71% on your flight if you consider stops on a Rapid City to Washington, D.C. flight.

When to book flights from Rapid City to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Rapid City to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Rapid City to Washington, D.C. (RAP to WAS) flight deals and tips

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

Fastest flight time

5h 58m

Direct flights

None
The fastest flight from Rapid City to Washington, D.C. takes 5h 58m
There are no direct flights from Rapid City to Washington, D.C.. There are no popular flight routes from Rapid City to Washington, D.C..
  • How far is Rapid City to Washington, D.C. by plane?

    There are 1394.5 mi between Rapid City and Washington, D.C.. 5h 58m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Rapid City Airport to Washington, D.C.?

    Prices for flights from Rapid City Airport to Washington, D.C. were last updated today.

  • How many operators does momondo search for flights from Rapid City Airport to Washington, D.C.?

  • How old do you have to be to fly from Rapid City Airport to Washington, D.C.?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Rapid City Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The required travel and health documents for your Washington, D.C. trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Rapid City to Washington, D.C.?

Best airlines flying from Rapid City to Washington, D.C.

Compare and see reviews for airlines that fly from Rapid City to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $268Free CancellationRating
7.4
9,363 reviews
Search United Airlines flights
DeltaPriceFrom $268Free CancellationRating
7.9
8,245 reviews
Search Delta flights
American AirlinesPriceFrom $293Free CancellationRating
7.1
11,367 reviews
Search American Airlines flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Waldorf
Woodbridge
Colonial Beach
Laurel
Towson
Silver Spring
Gaithersburg
Fredericksburg
Rockville
Tysons
Manassas
Springfield
Bethesda
Fairfax
Linthicum Heights
Reston

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

It is quick and easy to find Rapid City to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

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

Yes. momondo allows you to filter the results for Rapid City to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from Rapid City to Washington, D.C.?

momondo helps you find the best flight between Rapid City and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Rapid City to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

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1 adult
Mon 3/30
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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.