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Washington, D.C.

$216+ Cheap flights from Rapid City (RAP) to Washington, D.C. (WAS)

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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — WAS
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Rapid City to Washington, D.C.

Cheapest flights from Rapid City to Washington, D.C.
Explore the most affordable flight options available from Rapid City to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Sun Country Air deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:27 pm
RAP
-
BWI
1 stop15h 57m
Sun Country Air
Mon 8/3112:29 pm
BWI
-
RAP
1 stop6h 01m
Sun Country Air
Deal found 1/27$285
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3012:10 pm
RAP
-
BWI
1 stop6h 52m
United Airlines
Sun 5/36:15 am
BWI
-
RAP
1 stop6h 21m
United Airlines
Deal found 1/28$289
This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:00 am
RAP
-
IAD
1 stop7h 00m
United Airlines
Wed 5/66:15 am
IAD
-
RAP
1 stop6h 21m
United Airlines
Deal found 1/26$289
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/144:29 pm
RAP
-
BWI
1 stop4h 43m
Delta
Thu 2/196:05 am
BWI
-
RAP
1 stop6h 04m
Delta
Deal found 1/27$314
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/144:29 pm
RAP
-
DCA
1 stop4h 59m
Delta
Thu 2/1911:55 am
DCA
-
RAP
1 stop5h 49m
Delta
Deal found 1/28$314
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/1410:55 am
RAP
-
IAD
1 stop7h 58m
United Airlines
Thu 2/193:58 pm
IAD
-
RAP
1 stop6h 46m
United Airlines
Deal found 1/28$314
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1110:13 am
RAP
-
IAD
1 stop5h 49m
United Airlines
Sun 6/146:15 am
IAD
-
RAP
1 stop6h 04m
United Airlines
Deal found 1/27$332
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/124:29 pm
RAP
-
BWI
1 stop5h 18m
Delta
Mon 2/166:05 am
BWI
-
RAP
1 stop6h 04m
Delta
Deal found 1/27$339
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/124:29 pm
RAP
-
DCA
1 stop4h 59m
Delta
Mon 2/166:05 am
DCA
-
RAP
1 stop6h 04m
Delta
Deal found 1/27$339
This United Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/147:00 am
RAP
-
BWI
2 stops12h 17m
United Airlines
Thu 2/196:30 am
BWI
-
RAP
2 stops8h 43m
United Airlines
Deal found 1/28$342
This American Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/252:21 pm
RAP
-
DCA
1 stop6h 39m
American Airlines
Wed 3/48:51 am
DCA
-
RAP
1 stop7h 00m
American Airlines
Deal found 1/26$344
This American Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/62:08 pm
RAP
-
BWI
1 stop7h 10m
American Airlines
Wed 2/113:41 pm
BWI
-
RAP
1 stop7h 34m
American Airlines
Deal found 1/28$374

Find flight deals from Rapid City to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$289
(United Airlines)

One-way from

$216
(American Airlines)

Popular in

March

Cheapest in

November

Average price

$511
Provider with most accurate pricing for Rapid City-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Rapid City-Washington, D.C. (WAS) flights.
Search Deals
From Rapid City to Washington, D.C. (WAS)
Search Deals
One-way flight from Rapid City to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 29% potential increase in price ($186 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Rapid City to Washington, D.C. that are best for you.

Fly from

Rapid City

Fly to

Washington, D.C.

Route

Depart

Return

Price

Rapid CityBaltimore

RAP - BWI

RAPBWI

Rapid City

Thu 4/30

12:10 pm-9:02 pm

1 stop6h 52m

Baltimore/Washington

Sun 5/3

6:15 am-10:36 am

1 stop6h 21m

$289

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Fri 5/1

10:00 am-7:00 pm

1 stop7h 00m

Washington, D.C. Dulles Intl

Wed 5/6

6:15 am-10:36 am

1 stop6h 21m

$289

Rapid CityBaltimore

RAP - BWI

RAPBWI

Rapid City

Sat 2/14

4:29 pm-11:12 pm

1 stop4h 43m

Baltimore/Washington

Thu 2/19

6:05 am-10:09 am

1 stop6h 04m

$314

Rapid CityWashington, D.C.

RAP - DCA

RAPDCA

Rapid City

Sat 2/14

4:29 pm-11:28 pm

1 stop4h 59m

Washington, D.C. Reagan-National

Thu 2/19

11:55 am-3:44 pm

1 stop5h 49m

$314

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Sat 2/14

10:55 am-8:53 pm

1 stop7h 58m

Washington, D.C. Dulles Intl

Thu 2/19

3:58 pm-8:44 pm

1 stop6h 46m

$314

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Thu 6/11

10:13 am-6:02 pm

1 stop5h 49m

Washington, D.C. Dulles Intl

Sun 6/14

6:15 am-10:19 am

1 stop6h 04m

$332

Rapid CityBaltimore

RAP - BWI

RAPBWI

Rapid City

Fri 2/13

4:29 pm-11:47 pm

1 stop5h 18m

Baltimore/Washington

Sun 2/15

6:04 am-10:09 am

1 stop6h 05m

$339

Rapid CityBaltimore

RAP - BWI

RAPBWI

Rapid City

Thu 2/12

4:29 pm-11:47 pm

1 stop5h 18m

Baltimore/Washington

Mon 2/16

6:05 am-10:09 am

1 stop6h 04m

$339

Rapid CityWashington, D.C.

RAP - DCA

RAPDCA

Rapid City

Fri 2/13

4:29 pm-11:28 pm

1 stop4h 59m

Washington, D.C. Reagan-National

Sun 2/15

6:05 am-10:09 am

1 stop6h 04m

$339

Rapid CityWashington, D.C.

RAP - DCA

RAPDCA

Rapid City

Thu 2/12

4:29 pm-11:28 pm

1 stop4h 59m

Washington, D.C. Reagan-National

Mon 2/16

6:05 am-10:09 am

1 stop6h 04m

$339

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 41 results
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Compare providers for flights from Rapid City to Washington, D.C.

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Rapid City to Washington, D.C. in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Rapid City-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Rapid City-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Rapid City-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Rapid City-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Rapid City-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Rapid City to Washington, D.C.

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

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

Currently, January is the cheapest month in which you can book a flight from Rapid City to Washington, D.C. (average of $258). Flying from Rapid City to Washington, D.C. in November is currently the most expensive (average of $425). 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.

How much does it cost to fly round-trip from Rapid City to Washington, D.C.?

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated January 29, 2026.
Read through reviews of airlines operating flights from Rapid City to Washington, D.C., such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,128 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,128 reviews
Delta
7.9
Good
8,128 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,215 reviews
Delta
7.9
Good
8,128 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Rapid City to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Rapid City to Washington, D.C.?

    If you book a flight to Washington, D.C. from Rapid City, you will be flying from Rapid City, which is the city’s only airport. Rapid City (RAP) is located 9.0 mi from the center of Rapid City. There are 0 flights from Rapid City to Washington, D.C. per day from 3 different airlines.

  • How long is the flight from Rapid City to Washington, D.C.?

    A quick flight from Rapid City to Washington, D.C. can take about 4h 43m. United Airlines provides one of the quickest options available for as low as $314. The distance between Rapid City and Washington, D.C. is about 1397 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Rapid City to Washington, D.C. round-trip?

    Flying on Delta is currently your cheapest option to Washington, D.C., with prices starting at $268. Another option worth looking into is United Airlines, starting at $332 round trip. Users have found that Delta is 38% cheaper than the other options available to this destination.

  • What are the most popular routes from Rapid City to Washington, D.C.?

    Most travelers choose Rapid City - Baltimore/Washington, Rapid City - Washington, D.C. Dulles Intl or Rapid City - Washington, D.C. Reagan-National when deciding on the best route from Rapid City to Washington, D.C..

  • Can I find deals for flights from Rapid City to Washington, D.C. that include hotel bookings?

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

  • How can I find direct flights from Rapid City to Washington, D.C.?

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

  • Can I find deals for business class flights from Rapid City to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Rapid City to Washington, D.C. 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 Rapid City to Washington, D.C.?

    Currently, January is the cheapest month in which you can book a flight from Rapid City to Washington, D.C. (average of $258). Flying from Rapid City to Washington, D.C. in November is currently the most expensive (average of $425). 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

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Manassas
Largo
Bowie
McLean
Clinton
Upper Marlboro

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Alternative routes for Rapid City to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Sioux Falls to Dulles Intl flights
Sioux Falls to Reagan-National flights
Rapid City to Dulles Intl flights
Rapid City to Reagan-National flights
Aberdeen to Reagan-National flights

Top 3 airlines flying from Rapid City to Washington, D.C.

Discover the top 3 airlines that operate flights from Rapid City to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$268Average$462FlexibilityNo cancel feeOn-time69%
DeltaCheapest$268Average$416FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$293Average$366FlexibilityNo cancel feeOn-time71%

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