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Rapid City

$202+ Cheap flights from Dulles Intl (IAD) to Rapid City (RAP)

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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — RAP
Sep 12 — Sep 191
Sat 9/12
Sat 9/19
1 adult, Economy
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Cheap flight deals from Dulles Intl to Rapid City

Cheapest flights from Dulles Intl to Rapid City
Explore the most affordable flight options available from Dulles Intl to Rapid City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2026.

This United Airlines deal was found by Cheapflights users on 8/10. 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.
Wed 10/146:10 am -
1 stop6h 05m
Wed 10/211:37 pm -
1 stop7h 15m
Deal found 8/10$281
This Delta deal was found by Cheapflights users on 8/12. 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.
Wed 11/187:30 am -
1 stop8h 13m
Mon 11/234:36 pm -
1 stop4h 44m
Deal found 8/12$310
This Delta deal was found by Cheapflights users on 8/12. 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.
Fri 11/137:30 am -
1 stop8h 13m
Mon 11/162:23 pm -
1 stop6h 57m
Deal found 8/12$339
This American Airlines deal was found by Cheapflights users on 8/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:42 am -
1 stop7h 39m
Sun 11/11:09 pm -
1 stop8h 10m
Deal found 8/11$340
This Delta deal was found by Cheapflights users on 8/10. 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.
Wed 8/266:49 pm -
1 stop5h 48m
Wed 9/26:48 am -
2 stops11h 17m
Deal found 8/10$360
This United Airlines deal was found by Cheapflights users on 8/11. 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 10/296:10 am -
1 stop7h 48m
Thu 11/1211:12 am -
1 stop6h 18m
Deal found 8/11$361
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Tue 9/12:43 pm -
1 stop7h 54m
Sat 9/51:31 pm -
1 stop5h 49m
Deal found 8/11$364

Find flight deals from Dulles Intl to Rapid City

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Rapid City (RAP). 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 August 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$281
(United Airlines)

One-way from

$202
(Kiwi.com)

Popular in

May

Cheapest in

November

Average price

$660
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Rapid City flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Rapid City flights.
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From Washington, D.C. Dulles Intl to Rapid City
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Rapid City
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Rapid City 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 August 13, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Rapid City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Rapid City

IAD Washington, D.C. Dulles Intl - RAP Rapid City

IADRAP

Washington, D.C. Dulles Intl

Tue 11/10

8:00 am-3:55 pm

2 stops9h 55m

Rapid City

Sat 11/14

11:29 am-11:21 pm

2 stops9h 52m

$349
Quickest round-trip

Washington, D.C.Rapid City

IAD Washington, D.C. Dulles Intl - RAP Rapid City

IADRAP

Washington, D.C. Dulles Intl

Fri 9/11

2:43 pm-8:38 pm

1 stop7h 55m

Rapid City

Fri 9/18

4:41 pm-12:32 am

1 stop5h 51m

$464

Washington, D.C.Rapid City

IAD Washington, D.C. Dulles Intl - RAP Rapid City

IADRAP

Washington, D.C. Dulles Intl

Sat 9/19

12:50 pm-5:53 pm

1 stop7h 03m

Rapid City

Mon 9/28

1:37 pm-10:52 pm

1 stop7h 15m

$498

Washington, D.C.Rapid City

IAD Washington, D.C. Dulles Intl - RAP Rapid City

IADRAP

Washington, D.C. Dulles Intl

Thu 8/27

6:30 am-12:24 pm

1 stop7h 54m

Rapid City

Mon 8/31

10:26 am-9:08 pm

1 stop8h 42m

$499

Washington, D.C.Rapid City

IAD Washington, D.C. Dulles Intl - RAP Rapid City

IADRAP

Washington, D.C. Dulles Intl

Sat 9/19

2:43 pm-8:38 pm

1 stop7h 55m

Rapid City

Sat 9/26

7:05 am-9:27 pm

2 stops12h 22m

$644

Washington, D.C.Rapid City

IAD Washington, D.C. Dulles Intl - RAP Rapid City

IADRAP

Washington, D.C. Dulles Intl

Wed 9/9

2:43 pm-8:38 pm

1 stop7h 55m

Rapid City

Wed 9/16

5:48 pm-5:25 am

1 stop9h 37m

$658

Washington, D.C.Rapid City

IAD Washington, D.C. Dulles Intl - RAP Rapid City

IADRAP

Washington, D.C. Dulles Intl

Thu 10/8

10:33 pm-10:15 am

2 stops13h 42m

Rapid City

Wed 10/14

1:37 pm-10:52 pm

1 stop7h 15m

$683

Washington, D.C.Rapid City

IAD Washington, D.C. Dulles Intl - RAP Rapid City

IADRAP

Washington, D.C. Dulles Intl

Thu 10/1

6:10 am-10:15 am

1 stop6h 05m

Rapid City

Sun 10/4

7:05 am-5:17 am

1 stop20h 12m

$690

Washington, D.C.Rapid City

IAD Washington, D.C. Dulles Intl - RAP Rapid City

IADRAP

Washington, D.C. Dulles Intl

Thu 9/17

6:13 am-10:25 am

1 stop6h 12m

Rapid City

Sun 9/20

10:11 am-5:25 am

1 stop17h 14m

$692

Washington, D.C.Rapid City

IAD Washington, D.C. Dulles Intl - RAP Rapid City

IADRAP

Washington, D.C. Dulles Intl

Sun 11/1

3:04 pm-10:30 pm

2 stops9h 26m

Rapid City

Thu 11/5

6:39 am-1:48 pm

1 stop5h 09m

$693

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/10

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Compare providers for flights from Dulles Intl to Rapid City

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 Dulles Intl to Rapid City in August.
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 Washington, D.C. Dulles Intl Airport-Rapid City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Rapid City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Rapid City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Rapid City 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 Washington, D.C. Dulles Intl Airport-Rapid City 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 Dulles Intl to Rapid City

Have a flexible travel schedule? Discover the best time to fly to Rapid City from Dulles Intl 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.

Reviews of airlines servicing Rapid City

Get insights into the airlines that provide service to Rapid City. 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 Rapid City. Reviews last updated August 13, 2026.
See what other customers who have flown with United Airlines from Washington, D.C. Dulles Intl Airport to Rapid City have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,114 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
10,114 reviews
United Airlines
7.4
Good
10,114 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Rapid City. 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 into for flights to Rapid City from Washington, D.C. Dulles Intl?

    If you book a flight to Rapid City from Washington, D.C. Dulles Intl, you will be flying to 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 Washington, D.C. Dulles Intl to Rapid City per day from 1 airline.

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

    Airlines like Delta and United Airlines fly from Washington, D.C. Dulles Intl Airport to Rapid City in about 7h 55m. The time it takes to get you to your destination can typically vary by up to 2h. The distance from Washington, D.C. Dulles Intl Airport to Rapid City is about 1364 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Rapid City round-trip?

    Flying on United Airlines is currently your cheapest option to Rapid City, with prices starting at $276. Users have found that United Airlines is 47% cheaper than the other options available to this destination.

  • Can I find deals for flights from Dulles Intl to Rapid City that include hotel bookings?

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

  • How can I find direct flights from Dulles Intl to Rapid City?

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

  • Can I find deals for business class flights from Dulles Intl to Rapid City?

    Yes. Cheapflights offers flight deals from Dulles Intl to Rapid City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Rapid City?

Book flights to Rapid City if you plan to visit one of these locations
Keystone
Deadwood
Spearfish

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Top airline flying from Dulles Intl to Rapid City

Discover the top airline that operate flights from Dulles Intl to Rapid City. 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 August 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$276Average$469FlexibilityNo cancel feeOn-time69%

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