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Rapid City

$209+ 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — RAP
Mar 20 — Mar 271
Fri 3/20
Fri 3/27
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 February 18, 2026.

This United Airlines deal was found by Cheapflights users on 2/16. 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 4/224:00 pm
IAD
-
RAP
1 stop6h 44m
United Airlines
Thu 4/302:35 pm
RAP
-
IAD
1 stop6h 59m
United Airlines
Deal found 2/16$289
This United Airlines deal was found by Cheapflights users on 2/14. 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.
Mon 8/106:15 am
IAD
-
RAP
1 stop6h 04m
United Airlines
Thu 8/2012:50 pm
RAP
-
IAD
1 stop8h 23m
United Airlines
Deal found 2/14$302
This United Airlines deal was found by Cheapflights users on 2/17. 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 4/82:21 pm
IAD
-
RAP
1 stop6h 41m
United Airlines
Sun 4/1211:40 am
RAP
-
IAD
1 stop5h 43m
United Airlines
Deal found 2/17$304
This United Airlines deal was found by Cheapflights users on 2/17. 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 5/53:15 pm
IAD
-
RAP
1 stop8h 26m
United Airlines
Mon 5/1112:10 pm
RAP
-
IAD
1 stop5h 18m
United Airlines
Deal found 2/17$314
This Delta deal was found by Cheapflights users on 2/17. 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 5/56:37 pm
IAD
-
RAP
1 stop5h 43m
Delta
Mon 5/112:36 pm
RAP
-
IAD
2 stops8h 10m
Delta
Deal found 2/17$319
This United Airlines deal was found by Cheapflights users on 2/15. 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 6/26:10 am
IAD
-
RAP
1 stop6h 14m
United Airlines
Tue 6/911:20 am
RAP
-
IAD
2 stops9h 24m
United Airlines
Deal found 2/15$341
This Delta deal was found by Cheapflights users on 2/18. 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 8/296:00 am
IAD
-
RAP
1 stop7h 19m
Delta
Wed 9/22:25 pm
RAP
-
IAD
1 stop7h 04m
Delta
Deal found 2/18$349
This American Airlines deal was found by Cheapflights users on 2/15. 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.
Tue 3/175:00 am
IAD
-
RAP
2 stops10h 51m
American Airlines
Tue 3/242:21 pm
RAP
-
IAD
1 stop6h 32m
American Airlines
Deal found 2/15$354
This United Airlines deal was found by Cheapflights users on 2/16. 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 10/275:15 pm
IAD
-
RAP
1 stop6h 53m
United Airlines
Sat 10/318:35 am
RAP
-
IAD
1 stop6h 05m
United Airlines
Deal found 2/16$369
This American Airlines deal was found by Cheapflights users on 2/17. 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 3/186:00 am
IAD
-
RAP
1 stop9h 51m
American Airlines
Tue 3/312:21 pm
RAP
-
IAD
1 stop6h 32m
American Airlines
Deal found 2/17$370

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 February 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$289
(United Airlines)

One-way from

$209
(Kiwi.com)

Popular in

June

Cheapest in

January
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. 10% potential increase in price ($50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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 February 18, 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

Dulles Intl

Fly to

Rapid City

Route

Depart

Return

Price

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 3/17

2:12 pm-8:34 pm

1 stop8h 22m

Rapid City

Tue 3/24

2:45 pm-11:20 pm

1 stop6h 35m

$289

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Wed 4/8

2:21 pm-7:02 pm

1 stop6h 41m

Rapid City

Sun 4/12

11:40 am-7:23 pm

1 stop5h 43m

$289

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Wed 4/22

5:20 pm-10:27 pm

1 stop7h 07m

Rapid City

Fri 5/1

12:10 pm-7:28 pm

1 stop5h 18m

$289

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 8/11

6:27 am-11:46 am

1 stop7h 19m

Rapid City

Thu 8/20

12:19 pm-10:44 pm

1 stop8h 25m

$314

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 5/5

6:37 pm-10:20 pm

1 stop5h 43m

Rapid City

Mon 5/11

2:36 pm-12:46 am

2 stops8h 10m

$319

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 6/2

6:10 am-10:24 am

1 stop6h 14m

Rapid City

Tue 6/9

11:20 am-10:44 pm

2 stops9h 24m

$341

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Wed 4/8

2:21 pm-7:02 pm

1 stop6h 41m

Rapid City

Mon 4/13

9:20 am-7:23 pm

1 stop8h 03m

$369

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Wed 4/8

2:21 pm-8:44 pm

1 stop8h 23m

Rapid City

Tue 4/14

2:42 pm-11:34 pm

1 stop6h 52m

$369

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Mon 4/6

6:15 am-10:35 am

1 stop6h 20m

Rapid City

Sat 4/11

9:20 am-7:23 pm

1 stop8h 03m

$369

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 3/17

7:00 am-12:53 pm

3 stops31h 53m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/16

Showing 1-10 of 18 results
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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 February.
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 February 18, 2026.
See what other customers who have flown with United Airlines and American 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
9,312 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,312 reviews
United Airlines
7.4
Good
9,312 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,304 reviews
United Airlines
7.4
Good
9,312 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 2 different airlines.

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

    Airlines like United Airlines and American Airlines fly from Washington, D.C. Dulles Intl Airport to Rapid City in about 7h 19m. The time it takes to get you to your destination can typically vary by up to 1h 03m. 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 are the cheapest airlines flying 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 $304. Another option worth looking into is American Airlines, starting at $359 round trip.

  • 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
Sturgis
Spearfish

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Top 2 airlines flying from Dulles Intl to Rapid City

Discover the top 2 airlines 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 February 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$304Average$494FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$359Average$439FlexibilityNo cancel feeOn-time71%

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