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Rapid City

$109+ 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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — RAP
Aug 8 — Aug 151
Sat 8/8
Sat 8/15
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 July 9, 2026.

This United Airlines deal was found by Cheapflights users on 7/9. 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 8/296:15 am
IAD
-
RAP
1 stop6h 11m
United Airlines
Sat 9/51:31 pm
RAP
-
IAD
1 stop5h 49m
United Airlines
Deal found 7/9$271
This Delta deal was found by Cheapflights users on 7/5. 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 8/193:03 pm
IAD
-
RAP
2 stops9h 34m
Delta
Wed 8/264:30 pm
RAP
-
IAD
1 stop4h 51m
Delta
Deal found 7/5$276
This Delta deal was found by Cheapflights users on 7/7. 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.
Tue 10/206:00 am
IAD
-
RAP
2 stops9h 51m
Delta
Sat 10/2411:41 am
RAP
-
IAD
2 stops9h 30m
Delta
Deal found 7/7$281
This United Airlines deal was found by Cheapflights users on 7/6. 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 8/196:15 am
IAD
-
RAP
1 stop6h 11m
United Airlines
Wed 8/261:31 pm
RAP
-
IAD
1 stop5h 49m
United Airlines
Deal found 7/6$288
This Delta deal was found by Cheapflights users on 7/8. 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
IAD
-
RAP
1 stop8h 22m
Delta
Mon 11/2311:30 am
RAP
-
IAD
1 stop4h 44m
Delta
Deal found 7/8$300
This American Airlines deal was found by Cheapflights users on 7/7. 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.
Sat 8/157:57 am
IAD
-
RAP
1 stop6h 43m
American Airlines
Tue 8/181:16 pm
RAP
-
IAD
1 stop7h 39m
American Airlines
Deal found 7/7$316
This Kiwi.com deal was found by Cheapflights users on 7/7. 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.
Thu 8/278:59 am
IAD
-
RAP
1 stop8h 56m
Multiple Airlines
Sun 8/303:30 pm
RAP
-
IAD
2 stops29h 22m
Multiple Airlines
Deal found 7/7$319
This American Airlines deal was found by Cheapflights users on 7/6. 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 8/192:53 pm
IAD
-
RAP
1 stop8h 42m
American Airlines
Wed 8/2612:20 pm
RAP
-
IAD
2 stops8h 35m
American Airlines
Deal found 7/6$321
This United Airlines deal was found by Cheapflights users on 7/4. 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 10/314:15 pm
IAD
-
RAP
1 stop6h 30m
United Airlines
Thu 11/58:55 am
RAP
-
IAD
1 stop7h 00m
United Airlines
Deal found 7/4$324

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 July 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$271
(United Airlines)

One-way from

$109
(Kiwi.com)

Popular in

May

Cheapest in

November

Average price

$539
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Rapid City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Rapid City flights.
Search Deals
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. 15% potential increase in price ($88 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 July 9, 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
Quickest round-trip

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sat 8/29

6:15 am-10:26 am

1 stop6h 11m

Rapid City

Sat 9/5

1:31 pm-9:20 pm

1 stop5h 49m

$271

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Wed 8/19

6:15 am-10:26 am

1 stop6h 11m

Rapid City

Wed 8/26

1:31 pm-9:20 pm

1 stop5h 49m

$288

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 8/25

2:43 pm-8:37 pm

1 stop7h 54m

Rapid City

Sat 8/29

5:00 am-1:30 pm

1 stop6h 30m

$361

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sat 7/18

5:42 pm-11:16 pm

1 stop7h 34m

Rapid City

Thu 7/23

5:00 am-1:28 pm

1 stop6h 28m

$380

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sun 8/30

6:15 am-10:26 am

1 stop6h 11m

Rapid City

Sat 9/5

1:31 pm-9:20 pm

1 stop5h 49m

$390

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Fri 8/21

6:15 am-10:26 am

1 stop6h 11m

Rapid City

Tue 8/25

1:31 pm-9:20 pm

1 stop5h 49m

$390

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sun 8/30

6:15 am-10:26 am

1 stop6h 11m

Rapid City

Sun 9/6

5:00 am-1:29 pm

1 stop6h 29m

$419

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sun 8/2

6:10 am-10:24 am

1 stop6h 14m

Rapid City

Tue 8/11

6:09 am-1:55 pm

1 stop5h 46m

$461

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Wed 8/19

3:03 pm-10:37 pm

2 stops9h 34m

Rapid City

Wed 8/26

10:46 am-12:34 am

2 stops11h 48m

$485

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 7/14

6:00 am-10:18 am

1 stop6h 18m

Rapid City

Sat 7/18

11:00 am-12:41 am

2 stops11h 41m

$509

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Showing 1-10 of 20 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 July.
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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Rapid City

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

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 July 9, 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
9,955 reviews

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.7

Overall

7.4

Boarding

7.7

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
9,955 reviews
United Airlines
7.4
Good
9,955 reviews

Entertainment

7.1

Comfort

7.3

Crew

8.1

Food

6.7

Overall

7.4

Boarding

7.7

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 United Airlines fly from Washington, D.C. Dulles Intl Airport to Rapid City in about 6h 11m. The time it takes to get you to your destination can typically vary by up to . The distance from Washington, D.C. Dulles Intl Airport to Rapid City is about 1364 mi.

  • 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 41% 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
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Sturgis
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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 July 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$276Average$469FlexibilityNo cancel feeOn-time69%

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