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Rapid City

$301+ Cheap flights from Dulles Intl (IAD) to Rapid City (RAP)

IAD — RAP
Oct 24 — Oct 311
Sat 10/24
Sat 10/31
1 adult, Economy
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Cheap flight deals from Dulles Intl to Rapid City

Cheapest flights from Dulles Intl to Rapid City

Sat 10/316:11 am -
1 stop6h 20m
Tue 11/38:30 am -
1 stop7h 25m
Deal found 9/19$301
Sat 10/317:23 am -
1 stop5h 22m
Tue 11/311:29 am -
2 stops11h 13m
Deal found 9/19$306
Thu 10/2912:01 pm -
1 stop5h 57m
Tue 11/311:29 am -
2 stops9h 47m
Deal found 9/20$335
Fri 11/137:25 am -
1 stop8h 18m
Mon 11/162:23 pm -
1 stop6h 58m
Deal found 9/23$359
Wed 10/286:42 am -
1 stop7h 39m
Sun 11/11:09 pm -
1 stop8h 21m
Deal found 9/23$365
Thu 10/226:10 am -
1 stop6h 05m
Thu 10/295:00 am -
1 stop5h 55m
Deal found 9/22$393

Find flight deals from Dulles Intl to Rapid City

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$301
(United Airlines)

Popular in

August

Cheapest in

November

Average price

$752
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
Highest demand for flights based on searches. 21% potential increase in price ($165 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Rapid City that are best for you.

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Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.Rapid City

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

IADRAP

Washington, D.C. Dulles Intl

Sat 10/10

6:10 am-10:15 am

1 stop6h 05m

Rapid City

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$339

Washington, D.C.Rapid City

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

IADRAP

Washington, D.C. Dulles Intl

Sat 10/17

2:43 pm-8:52 pm

1 stop8h 09m

Rapid City

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$339

Washington, D.C.Rapid City

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

IADRAP

Washington, D.C. Dulles Intl

Thu 10/29

12:01 pm-3:58 pm

1 stop5h 57m

Rapid City

Tue 11/3

11:29 am-11:16 pm

2 stops9h 47m

$340

Washington, D.C.Rapid City

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

IADRAP

Washington, D.C. Dulles Intl

Fri 11/13

7:25 am-1:43 pm

1 stop8h 18m

Rapid City

Mon 11/16

2:23 pm-12:41 am

2 stops8h 18m

$364

Washington, D.C.Rapid City

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

IADRAP

Washington, D.C. Dulles Intl

Wed 10/7

7:50 am-1:45 pm

2 stops31h 55m

Rapid City

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$369

Washington, D.C.Rapid City

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

IADRAP

Washington, D.C. Dulles Intl

Wed 10/7

7:23 am-1:57 pm

1 stop8h 34m

Rapid City

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$386

Washington, D.C.Rapid City

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

IADRAP

Washington, D.C. Dulles Intl

Sat 10/10

3:03 pm-10:30 pm

2 stops9h 27m

Rapid City

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$391

Washington, D.C.Rapid City

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

IADRAP

Washington, D.C. Dulles Intl

Sat 1/30

2:25 pm-7:08 pm

1 stop6h 43m

Rapid City

Wed 2/3

7:05 am-3:50 pm

1 stop6h 45m

$411

Washington, D.C.Rapid City

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

IADRAP

Washington, D.C. Dulles Intl

Thu 11/5

7:23 am-10:45 am

1 stop5h 22m

Rapid City

Sun 11/15

2:23 pm-12:41 am

2 stops8h 18m

$424

Washington, D.C.Rapid City

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

IADRAP

Washington, D.C. Dulles Intl

Mon 10/12

6:10 am-10:15 am

1 stop6h 05m

Rapid City

Mon 10/19

1:37 pm-10:52 pm

1 stop7h 15m

$539

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/19

Sorted by cheapest first

Compare providers for flights from Dulles Intl to Rapid City

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 September.
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

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?

Airfare is below average for this route at the moment.

Washington, D.C. Dulles Intl Airport to Rapid City flights typically cost between $401 and $799 in October.
The cheapest round-trip price found within the last 5 days was $301 on United Airlines (Oct 31-Nov 3).

Reviews of airlines servicing Rapid City

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
10,226 reviews

Entertainment

7.1

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.7

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
10,226 reviews
United Airlines
7.4
Good
10,226 reviews

Entertainment

7.1

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.7

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

  • 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 and Delta fly from Washington, D.C. Dulles Intl Airport to Rapid City in about 5h 57m. The time it takes to get you to your destination can typically vary by up to 23m. 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 53% 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
Deadwood
Keystone
Spearfish

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Top airline flying from Dulles Intl to Rapid City

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$276Average$539FlexibilityNo cancel feeOn-time69%

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