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Washington, D.C.

$136+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — WAS
Jun 13 — Jun 201
Sat 6/13
Sat 6/20
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 May 14, 2026.

This Delta deal was found by Cheapflights users on 5/12. 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 7/94:15 pm
RAP
-
DCA
1 stop5h 41m
Delta
Wed 7/152:45 pm
DCA
-
RAP
2 stops9h 41m
Delta
Deal found 5/12$310
This Delta deal was found by Cheapflights users on 5/12. 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 7/911:00 am
RAP
-
IAD
2 stops10h 13m
Delta
Tue 7/145:26 pm
IAD
-
RAP
2 stops7h 00m
Delta
Deal found 5/12$315
This Delta deal was found by Cheapflights users on 5/12. 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 7/94:15 pm
RAP
-
BWI
1 stop4h 58m
Delta
Tue 7/147:10 pm
BWI
-
RAP
1 stop5h 16m
Delta
Deal found 5/12$339
This Delta deal was found by Cheapflights users on 5/12. 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 7/94:15 pm
RAP
-
DCA
1 stop5h 41m
Delta
Mon 7/136:00 am
DCA
-
RAP
1 stop6h 18m
Delta
Deal found 5/12$339
This Delta deal was found by Cheapflights users on 5/11. 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 7/22:59 pm
RAP
-
BWI
1 stop6h 14m
Delta
Mon 7/65:40 am
BWI
-
RAP
2 stops10h 39m
Delta
Deal found 5/11$344
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/43:39 pm
RAP
-
BWI
2 stops20h 01m
Multiple Airlines
Fri 7/179:28 pm
BWI
-
RAP
1 stop19h 21m
Multiple Airlines
Deal found 5/12$360
This United Airlines deal was found by Cheapflights users on 5/12. 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 11/147:05 am
RAP
-
DCA
1 stop5h 51m
United Airlines
Tue 11/176:00 am
DCA
-
RAP
1 stop6h 53m
United Airlines
Deal found 5/12$361
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/43:39 pm
RAP
-
BWI
2 stops21h 19m
Multiple Airlines
Tue 7/147:27 pm
BWI
-
RAP
1 stop15h 23m
Multiple Airlines
Deal found 5/12$363
This United Airlines deal was found by Cheapflights users on 5/11. 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 7/21:35 pm
RAP
-
IAD
1 stop5h 47m
United Airlines
Mon 7/66:10 am
IAD
-
RAP
1 stop6h 14m
United Airlines
Deal found 5/11$365
This Delta deal was found by Cheapflights users on 5/11. 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 7/22:59 pm
RAP
-
DCA
1 stop5h 03m
Delta
Mon 7/66:00 am
DCA
-
RAP
1 stop7h 30m
Delta
Deal found 5/11$369
This Delta deal was found by Cheapflights users on 5/11. 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 5/3011:13 am
RAP
-
BWI
2 stops11h 44m
Delta
Tue 6/21:59 pm
BWI
-
RAP
2 stops10h 25m
Delta
Deal found 5/11$379
This Delta deal was found by Cheapflights users on 5/12. 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 5/234:33 pm
RAP
-
IAD
1 stop5h 06m
Delta
Wed 5/276:00 am
IAD
-
RAP
1 stop6h 33m
Delta
Deal found 5/12$380

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 May 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$310
(Delta)

One-way from

$136
(American Airlines)

Popular in

March

Cheapest in

November

Average price

$414
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. 22% potential increase in price ($124 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 14, 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

Cheapest round-trip

Rapid CityBaltimore

RAP - BWI

RAPBWI

Rapid City

Thu 6/11

1:35 pm-9:26 pm

1 stop5h 51m

Baltimore/Washington

Mon 6/15

7:05 pm-11:16 pm

1 stop6h 11m

$339

Rapid CityBaltimore

RAP - BWI

RAPBWI

Rapid City

Thu 7/2

2:59 pm-11:13 pm

1 stop6h 14m

Baltimore/Washington

Mon 7/6

5:40 am-2:19 pm

2 stops10h 39m

$344

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Fri 7/3

11:20 am-9:11 pm

1 stop7h 51m

Washington, D.C. Dulles Intl

Mon 7/6

6:10 am-10:24 am

1 stop6h 14m

$365

Rapid CityBaltimore

RAP - BWI

RAPBWI

Rapid City

Sat 5/30

11:13 am-12:57 am

2 stops11h 44m

Baltimore/Washington

Tue 6/2

1:59 pm-10:24 pm

2 stops10h 25m

$379

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Sat 5/23

4:33 pm-11:39 pm

1 stop5h 06m

Washington, D.C. Dulles Intl

Wed 5/27

6:00 am-10:33 am

1 stop6h 33m

$380

Rapid CityWashington, D.C.

RAP - DCA

RAPDCA

Rapid City

Thu 7/2

11:00 am-11:44 pm

2 stops10h 44m

Washington, D.C. Reagan-National

Mon 7/6

6:00 am-11:30 am

1 stop7h 30m

$401

Rapid CityWashington, D.C.

RAP - DCA

RAPDCA

Rapid City

Thu 7/30

2:31 pm-11:56 pm

1 stop7h 25m

Washington, D.C. Reagan-National

Wed 8/5

2:45 pm-10:37 pm

2 stops9h 52m

$409

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Sat 5/30

11:13 am-12:51 am

2 stops11h 38m

Washington, D.C. Dulles Intl

Tue 6/2

6:58 pm-10:24 pm

1 stop5h 26m

$409

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Thu 6/11

6:47 am-9:04 pm

2 stops12h 17m

Washington, D.C. Dulles Intl

Mon 6/15

6:14 am-10:27 am

1 stop6h 13m

$409

Rapid CityBaltimore

RAP - BWI

RAPBWI

Rapid City

Sat 6/6

6:00 am-1:54 pm

1 stop5h 54m

Baltimore/Washington

Tue 6/9

6:20 am-10:24 am

1 stop6h 04m

$419

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

Showing 1-10 of 41 resultsSorted by cheapest first
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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 May.
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, March is the cheapest month in which you can book a flight from Rapid City to Washington, D.C. (average of $215). Flying from Rapid City to Washington, D.C. in January is currently the most expensive (average of $374). 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 May 14, 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
8,454 reviews

Food

7.2

Entertainment

7.8

Overall

7.9

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,454 reviews
Delta
7.9
Good
8,454 reviews

Food

7.2

Entertainment

7.8

Overall

7.9

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,711 reviews
Delta
7.9
Good
8,454 reviews

Food

7.2

Entertainment

7.8

Overall

7.9

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 5h 51m. United Airlines provides one of the quickest options available for as low as $339. 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 United Airlines is currently your cheapest option to Washington, D.C., with prices starting at $283. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $288 and $304, respectively. Users have found that United Airlines is 35% 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 - Washington, D.C. Dulles Intl, Rapid City - Washington, D.C. Reagan-National or Rapid City - Baltimore/Washington 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, March is the cheapest month in which you can book a flight from Rapid City to Washington, D.C. (average of $215). Flying from Rapid City to Washington, D.C. in January is currently the most expensive (average of $374). 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
Tysons
Owings Mills
Springfield
Arlington
Herndon
Rockville
Hyattsville
Manassas
Fredericksburg
Silver Spring
Hanover
Laurel
Woodbridge
Waldorf
Largo
Clinton
Hunt Valley
Cordova
Reston

Browse thousands of different options on Cheapflights for your next trip

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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 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 May 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$268Average$428FlexibilityNo cancel feeOn-time69%
DeltaCheapest$270Average$451FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$304Average$432FlexibilityNo cancel feeOn-time71%

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