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Cheap flights from Washington, D.C. Dulles Intl Airport to Rapid City from $266

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Rapid City departing on 1/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Rapid City

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:11 pm - 10:29 pmIAD-RAP
8h 18m1 stop
United Airlines Logo
12:35 pm - 9:07 pmRAP-IAD
6h 32m1 stop
$269United Airlines
Find Deal
Sat, Jan 17 - Sat, Jan 24
Delta Logo
10:57 am - 10:28 pmIAD-RAP
13h 31m2 stops
Delta Logo
4:10 pm - 11:57 pmRAP-IAD
5h 47m1 stop
$274Delta
Find Deal
Sat, Feb 21 - Tue, Feb 24
Delta Logo
5:11 pm - 10:28 pmIAD-RAP
7h 17m2 stops
Delta Logo
10:54 am - 11:11 pmRAP-IAD
10h 17m2 stops
$279Delta
Find Deal
Sat, Feb 21 - Tue, Feb 24
Delta Logo
5:11 pm - 10:28 pmIAD-RAP
7h 17m2 stops
Delta Logo
4:10 pm - 11:57 pmRAP-IAD
5h 47m1 stop
$309Delta
Find Deal
Sat, Feb 14 - Fri, Feb 20
Delta Logo
12:35 pm - 10:28 pmIAD-RAP
11h 53m2 stops
Delta Logo
10:54 am - 11:11 pmRAP-IAD
10h 17m2 stops
$314Delta
Find Deal
Sat, Feb 14 - Thu, Feb 19
American Airlines Logo
6:00 am - 1:34 pmIAD-RAP
9h 34m1 stop
American Airlines Logo
6:00 am - 4:31 pmRAP-IAD
8h 31m1 stop
$334American Airlines
Find Deal
Mon, Jan 19 - Sat, Jan 24
American Airlines Logo
11:34 am - 9:15 pmIAD-RAP
11h 41m2 stops
American Airlines Logo
6:00 am - 4:31 pmRAP-IAD
8h 31m1 stop
$339American Airlines
Find Deal
Sun, Jan 18 - Sat, Jan 24
United Airlines Logo
5:19 pm - 10:16 pmIAD-RAP
6h 57m1 stop
United Airlines Logo
5:20 am - 1:05 pmRAP-IAD
5h 45m1 stop
$349United Airlines
Find Deal
Sat, Feb 14 - Thu, Feb 19
Delta Logo
5:11 pm - 10:28 pmIAD-RAP
7h 17m2 stops
Delta Logo
6:00 am - 11:11 pmRAP-IAD
15h 11m2 stops
$353Delta
Find Deal
Sat, Feb 14 - Sat, Feb 21
American Airlines Logo
11:24 am - 10:19 pmIAD-RAP
12h 55m2 stops
American Airlines Logo
5:36 am - 4:28 pmRAP-IAD
8h 52m1 stop
$354American Airlines
Find Deal
Tue, Feb 17 - Sat, Feb 21

United Airlines flights from Washington, D.C. Dulles Intl Airport to Rapid City

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Rapid City flight tickets
United Airlines
Jan 17
IAD4:11 pmWashington, D.C. Dulles Intl
8h 18m
1 stop
RAP10:29 pmRapid City
Jan 24
RAP12:35 pmRapid City
6h 32m
1 stop
IAD9:07 pmWashington, D.C. Dulles Intl
$269
Find similar
United Airlines
Feb 14
IAD5:19 pmWashington, D.C. Dulles Intl
6h 57m
1 stop
RAP10:16 pmRapid City
Feb 19
RAP5:20 amRapid City
5h 45m
1 stop
IAD1:05 pmWashington, D.C. Dulles Intl
$349
Find similar
United Airlines
Feb 17
IAD2:12 pmWashington, D.C. Dulles Intl
8h 32m
1 stop
RAP8:44 pmRapid City
Feb 20
RAP5:20 amRapid City
5h 45m
1 stop
IAD1:05 pmWashington, D.C. Dulles Intl
$371
Find similar

Delta flights from Washington, D.C. Dulles Intl Airport to Rapid City

Our best Delta deals on Washington, D.C. Dulles Intl Airport to Rapid City flight tickets
Delta
Feb 21
IAD10:57 amWashington, D.C. Dulles Intl
13h 31m
2 stops
RAP10:28 pmRapid City
Feb 24
RAP4:10 pmRapid City
5h 47m
1 stop
IAD11:57 pmWashington, D.C. Dulles Intl
$274
Find similar
Delta
Feb 21
IAD5:11 pmWashington, D.C. Dulles Intl
7h 17m
2 stops
RAP10:28 pmRapid City
Feb 24
RAP10:54 amRapid City
10h 17m
2 stops
IAD11:11 pmWashington, D.C. Dulles Intl
$279
Find similar
Delta
Feb 14
IAD5:11 pmWashington, D.C. Dulles Intl
7h 17m
2 stops
RAP10:28 pmRapid City
Feb 20
RAP4:10 pmRapid City
5h 47m
1 stop
IAD11:57 pmWashington, D.C. Dulles Intl
$309
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated November 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

Fly to

Route

Depart

Return

Price

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sat 1/17

4:11 pm-10:29 pm

1 stop8h 18m

Rapid City

Sat 1/24

12:35 pm-9:07 pm

1 stop6h 32m

$269

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sat 2/21

10:57 am-10:28 pm

2 stops13h 31m

Rapid City

Tue 2/24

4:10 pm-11:57 pm

1 stop5h 47m

$274

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sat 2/21

5:11 pm-10:28 pm

2 stops7h 17m

Rapid City

Tue 2/24

10:54 am-11:11 pm

2 stops10h 17m

$279

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sat 2/14

5:11 pm-10:28 pm

2 stops7h 17m

Rapid City

Fri 2/20

4:10 pm-11:57 pm

1 stop5h 47m

$309

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sat 2/14

12:35 pm-10:28 pm

2 stops11h 53m

Rapid City

Thu 2/19

10:54 am-11:11 pm

2 stops10h 17m

$314

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Mon 1/19

6:00 am-1:34 pm

1 stop9h 34m

Rapid City

Sat 1/24

6:00 am-4:31 pm

1 stop8h 31m

$334

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sun 1/18

11:34 am-9:15 pm

2 stops11h 41m

Rapid City

Sat 1/24

6:00 am-4:31 pm

1 stop8h 31m

$339

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sat 2/14

5:19 pm-10:16 pm

1 stop6h 57m

Rapid City

Thu 2/19

5:20 am-1:05 pm

1 stop5h 45m

$349

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sat 2/14

5:11 pm-10:28 pm

2 stops7h 17m

Rapid City

Sat 2/21

6:00 am-11:11 pm

2 stops15h 11m

$353

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 2/17

11:24 am-10:19 pm

2 stops12h 55m

Rapid City

Sat 2/21

5:36 am-4:28 pm

1 stop8h 52m

$354

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to Rapid City from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Rapid City

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Rapid City?

According to our data, Wednesday is the cheapest day to fly to Rapid City from Washington, D.C. Dulles Intl Airport. The lowest ticket price found for a Wednesday departure recently was $481. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Rapid City is Monday, with ticket prices averaging around $619.

What is the cheapest time of day to depart on your flight to Rapid City?

Our most recent data shows that the best time of day to fly to Rapid City is in the evening. Flights from Washington, D.C. Dulles Intl Airport to Rapid City during this time can be as low as $451. Flights at noon are often more expensive with an average ticket price of $618.

When to book flights from Washington, D.C. Dulles Intl Airport to Rapid City

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Rapid City according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Rapid City (IAD to RAP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Rapid City

Direct flights

None
There are no direct flights from Washington, D.C. Dulles Intl Airport to Rapid City. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Rapid City.
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  • How far is Washington, D.C. Dulles Intl to Rapid City by plane?

    Washington, D.C. Dulles Intl and Rapid City are 1372.9 mi apart from one another. 5h 18m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Rapid City Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Rapid City Airport were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Rapid City Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Rapid City Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Rapid City Airport.

  • What documentation or ID do you need to fly to Rapid City Airport?

    The required travel and health documents for your Rapid City Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Rapid City Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Rapid City?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Rapid City

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Rapid City with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $283Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
American AirlinesPriceFrom $359Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights

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
Custer
Hill City
Wall
Hot Springs

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Rapid City?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Rapid City from Washington, D.C..

Can I find flights from Washington, D.C. to Rapid City with flexible booking policies on momondo?

momondo does allow users to show only those flights to Rapid City from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington, D.C. to Rapid City?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Rapid City.

I’m not ready to book a flight from Washington, D.C. to Rapid City right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Rapid City from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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