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Rapid City

$246+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — RAP
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap 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 September 17, 2025.

Round-trip from

$269
(American Airlines)

One-way from

$246
(Delta)

Popular in

April

Cheapest in

February

Average price

$425
From Washington, D.C. Dulles Intl to Rapid City
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One-way flight from Washington, D.C. Dulles Intl to Rapid City
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Highest demand for flights based on searches. 26% potential increase in price ($172 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 17, 2025.

This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/46:18 amIAD - RAP
1 stop5h 35mDelta
Tue 11/112:51 pmRAP - IAD
1 stop7h 01mDelta
Deal found 9/16$269
This Delta deal was found by Cheapflights users on 9/17. 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 11/46:18 amIAD - RAP
1 stop5h 35mDelta
Sat 11/810:33 amRAP - IAD
2 stops10h 47mDelta
Deal found 9/17$274
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/15:10 pmIAD - RAP
2 stops7h 26mDelta
Sat 11/810:33 amRAP - IAD
2 stops10h 47mDelta
Deal found 9/16$279
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/56:18 amIAD - RAP
1 stop5h 35mDelta
Sat 11/156:05 amRAP - IAD
1 stop5h 28mDelta
Deal found 9/16$294
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/56:18 amIAD - RAP
1 stop5h 35mDelta
Thu 11/132:51 pmRAP - IAD
1 stop7h 01mDelta
Deal found 9/16$319
This American Airlines deal was found by Cheapflights users on 9/15. 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 9/3011:18 amIAD - RAP
2 stops11h 35mAmerican Airlines
Sat 10/411:09 amRAP - IAD
1 stop5h 38mAmerican Airlines
Deal found 9/15$324
This Delta deal was found by Cheapflights users on 9/17. 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.
Thu 10/236:00 amIAD - RAP
2 stops9h 45mDelta
Tue 10/2810:33 amRAP - IAD
2 stops10h 27mDelta
Deal found 9/17$329
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/156:30 amIAD - RAP
1 stop5h 43mUnited Airlines
Wed 10/221:44 pmRAP - IAD
1 stop5h 11mUnited Airlines
Deal found 9/16$349
This American Airlines deal was found by Cheapflights users on 9/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/52:16 pmIAD - RAP
2 stops9h 00mAmerican Airlines
Wed 11/125:18 amRAP - IAD
2 stops9h 31mAmerican Airlines
Deal found 9/16$360

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 September 17, 2025.
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

Wed 10/22

6:30 am-10:13 am

1 stop5h 43m

Rapid City

Sat 10/25

12:56 pm-11:22 pm

1 stop8h 26m

$269

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Wed 11/5

6:04 am-1:12 pm

1 stop9h 08m

Rapid City

Wed 11/12

5:18 am-4:11 pm

1 stop8h 53m

$269

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 11/4

6:18 am-9:53 am

1 stop5h 35m

Rapid City

Sat 11/8

2:25 pm-11:39 pm

1 stop7h 14m

$269

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 11/11

6:30 am-10:34 am

1 stop6h 04m

Rapid City

Sat 11/15

8:45 am-6:52 pm

1 stop8h 07m

$269

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sat 11/1

5:18 pm-9:58 pm

1 stop6h 40m

Rapid City

Sat 11/8

8:45 am-6:52 pm

1 stop8h 07m

$269

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Wed 10/15

6:30 am-10:13 am

1 stop5h 43m

Rapid City

Wed 10/22

3:20 pm-11:22 pm

1 stop6h 02m

$269

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sat 11/1

5:10 pm-10:36 pm

2 stops7h 26m

Rapid City

Sat 11/8

2:25 pm-11:39 pm

1 stop7h 14m

$274

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 11/4

2:16 pm-9:16 pm

2 stops9h 00m

Rapid City

Tue 11/11

1:42 pm-10:33 pm

1 stop6h 51m

$274

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 11/11

6:04 am-1:12 pm

1 stop9h 08m

Rapid City

Sat 11/15

5:18 am-7:21 pm

2 stops12h 03m

$274

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 11/11

6:00 am-2:11 pm

2 stops10h 11m

Rapid City

Sat 11/15

6:05 am-7:27 pm

2 stops11h 22m

$279

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 16 results
1
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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

What is the cheapest time of day to fly from IAD to RAP?

Find hourly flight availability from Dulles Intl to Rapid City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

When flying from Washington, D.C. Dulles Intl Airport to Rapid City, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 23% versus a flight at noon.

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 September 17, 2025.
See what other customers who have flown with Delta, 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.
Delta
8.0
Very good
7,961 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,961 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 3 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 5h 43m. The time it takes to get you to your destination can typically vary by up to 3h 25m. 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 Delta is currently your cheapest option to Rapid City, with prices starting at $268. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $325 and $359, respectively. Users have found that Delta is 43% 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.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Rapid City?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Rapid City (average of $348). Flying from Washington, D.C. Dulles Intl Airport to Rapid City in June is currently the most expensive (average of $501). 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 Rapid City?

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

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Top 3 airlines flying from Dulles Intl to Rapid City

Discover the top 3 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$268Average$429FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$325Average$496FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$359Average$439FlexibilityNo cancel feeOn-time71%

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