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Rapid City

$178+ 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
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$269
(Delta)

One-way from

$178
(American Airlines)

Popular in

April

Cheapest in

February

Average price

$430
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. 17% potential increase in price ($103 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This Delta deal was found by Cheapflights users on 7/2. 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 11/56:15 amIAD - RAP
1 stop5h 50mDelta
Tue 11/114:35 pmRAP - IAD
1 stop4h 59mDelta
Deal found 7/2$269
This United Airlines deal was found by Cheapflights users on 7/1. 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 9/135:47 pmIAD - RAP
1 stop6h 12mUnited Airlines
Sat 9/205:30 amRAP - IAD
1 stop8h 04mUnited Airlines
Deal found 7/1$320
This American Airlines deal was found by Cheapflights users on 7/1. 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 9/211:51 amIAD - RAP
1 stop6h 17mAmerican Airlines
Tue 9/912:33 pmRAP - IAD
1 stop8h 12mAmerican Airlines
Deal found 7/1$328

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 3, 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

Tue 8/5

6:30 am-12:46 pm

1 stop8h 16m

Rapid City

Tue 8/12

6:30 am-1:49 pm

1 stop5h 19m

$269

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 9/2

11:51 am-4:08 pm

1 stop6h 17m

Rapid City

Tue 9/9

12:33 pm-10:45 pm

1 stop8h 12m

$328

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 8/5

6:20 am-10:13 am

1 stop5h 53m

Rapid City

Tue 8/12

4:25 pm-11:38 pm

1 stop5h 13m

$340

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Thu 7/31

5:25 pm-4:09 pm

3 stops24h 44m

Rapid City

Thu 8/7

9:59 pm-12:01 pm

3 stops36h 02m

$631

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Mon 9/29

11:47 am-4:04 pm

1 stop6h 17m

$178

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Thu 7/17

11:58 am-7:09 am

2 stops21h 11m

$197

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Mon 9/29

9:50 am-3:43 pm

2 stops7h 53m

$205

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Thu 8/7

6:35 am-2:50 pm

3 stops10h 15m

$635

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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 July 3, 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.

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 3, 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
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

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
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

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
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

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
7,982 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

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 2 different airlines.

  • 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 $269. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $320 and $328, respectively. Users have found that Delta is 43% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Rapid City one-way?

    One-way options have recently been found by users for as low as $178 on American Airlines. Other airlines that offer cheap prices include Delta from $205 and United Airlines from $635 one-way.

  • 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 $502). 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 Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Deadwood
Keystone
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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$304Average$498FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$359Average$523FlexibilityNo cancel feeOn-time71%

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