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Cheap flights from Washington, D.C. Dulles Intl Airport to Rapid City from $256

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 1/5. 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
12:35 pm - 7:14 pm
IAD
-
RAP
8h 39m1 stop
United Airlines Logo
10:45 am - 7:21 pm
RAP
-
IAD
6h 36m1 stop
$289United Airlines
Wed, Jan 7 - Tue, Jan 13
Delta Logo
5:26 pm - 10:28 pm
IAD
-
RAP
7h 02m2 stops
Delta Logo
4:10 pm - 11:57 pm
RAP
-
IAD
5h 47m1 stop
$294Delta
Wed, Jan 7 - Tue, Jan 13
Delta Logo
5:26 pm - 10:28 pm
IAD
-
RAP
7h 02m2 stops
Delta Logo
10:54 am - 11:06 pm
RAP
-
IAD
10h 12m2 stops
$299Delta
Wed, Jan 7 - Tue, Jan 13
United Airlines Logo
2:30 pm - 8:43 pm
IAD
-
RAP
8h 13m1 stop
United Airlines Logo
12:10 pm - 7:28 pm
RAP
-
IAD
5h 18m1 stop
$338United Airlines
Fri, May 1 - Thu, May 7
United Airlines Logo
9:55 am - 5:13 pm
IAD
-
RAP
9h 18m1 stop
United Airlines Logo
2:45 pm - 11:34 pm
RAP
-
IAD
6h 49m1 stop
$339United Airlines
Wed, Apr 8 - Sun, Apr 12
United Airlines Logo
4:11 pm - 10:29 pm
IAD
-
RAP
8h 18m1 stop
United Airlines Logo
12:35 pm - 9:07 pm
RAP
-
IAD
6h 32m1 stop
$369United Airlines
Sat, Jan 10 - Tue, Jan 13
United Airlines Logo
12:35 pm - 5:12 pm
IAD
-
RAP
6h 37m1 stop
United Airlines Logo
12:35 pm - 9:07 pm
RAP
-
IAD
6h 32m1 stop
$371United Airlines
Mon, Jan 12 - Thu, Jan 15
American Airlines Logo
6:00 am - 1:34 pm
IAD
-
RAP
9h 34m1 stop
American Airlines Logo
6:00 am - 4:31 pm
RAP
-
IAD
8h 31m1 stop
$374American Airlines
Tue, Jan 6 - Tue, Jan 13
Delta Logo
5:26 pm - 10:28 pm
IAD
-
RAP
7h 02m2 stops
Delta Logo
4:10 pm - 11:57 pm
RAP
-
IAD
5h 47m1 stop
$376Delta
Mon, Jan 12 - Thu, Jan 15
Delta Logo
6:20 am - 3:25 pm
IAD
-
RAP
11h 05m2 stops
Delta Logo
4:10 pm - 11:57 pm
RAP
-
IAD
5h 47m1 stop
$379Delta
Fri, Jan 9 - Sun, Jan 11

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

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Rapid City flight tickets
American Airlines
Jan 6
IAD6:00 amWashington, D.C. Dulles Intl
9h 34m
1 stop
RAP1:34 pmRapid City
Jan 13
RAP6:00 amRapid City
8h 31m
1 stop
IAD4:31 pmWashington, D.C. Dulles Intl
$374
Find similar
American Airlines
Jan 19
IAD6:00 amWashington, D.C. Dulles Intl
9h 34m
1 stop
RAP1:34 pmRapid City
Jan 24
RAP6:00 amRapid City
8h 31m
1 stop
IAD4:31 pmWashington, D.C. Dulles Intl
$410
Find similar
American Airlines
Jan 9
IAD7:01 amWashington, D.C. Dulles Intl
16h 14m
2 stops
RAP9:15 pmRapid City
Jan 11
RAP2:08 pmRapid City
18h 50m
2 stops
IAD10:58 amWashington, D.C. Dulles Intl
$431
Find similar

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 7
IAD12:35 pmWashington, D.C. Dulles Intl
8h 39m
1 stop
RAP7:14 pmRapid City
Jan 13
RAP10:45 amRapid City
6h 36m
1 stop
IAD7:21 pmWashington, D.C. Dulles Intl
$289
Find similar
United Airlines
May 1
IAD2:30 pmWashington, D.C. Dulles Intl
8h 13m
1 stop
RAP8:43 pmRapid City
May 7
RAP12:10 pmRapid City
5h 18m
1 stop
IAD7:28 pmWashington, D.C. Dulles Intl
$338
Find similar
United Airlines
Apr 8
IAD9:55 amWashington, D.C. Dulles Intl
9h 18m
1 stop
RAP5:13 pmRapid City
Apr 12
RAP2:45 pmRapid City
6h 49m
1 stop
IAD11:34 pmWashington, D.C. Dulles Intl
$339
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 December 16, 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

Wed 1/7

12:35 pm-7:14 pm

1 stop8h 39m

Rapid City

Tue 1/13

10:45 am-7:21 pm

1 stop6h 36m

$289

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Wed 1/7

5:26 pm-10:28 pm

2 stops7h 02m

Rapid City

Tue 1/13

4:10 pm-11:57 pm

1 stop5h 47m

$294

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Wed 1/7

5:26 pm-10:28 pm

2 stops7h 02m

Rapid City

Tue 1/13

10:54 am-11:06 pm

2 stops10h 12m

$299

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Fri 5/1

2:30 pm-8:43 pm

1 stop8h 13m

Rapid City

Thu 5/7

12:10 pm-7:28 pm

1 stop5h 18m

$338

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Wed 4/8

9:55 am-5:13 pm

1 stop9h 18m

Rapid City

Sun 4/12

2:45 pm-11:34 pm

1 stop6h 49m

$339

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Sat 1/10

4:11 pm-10:29 pm

1 stop8h 18m

Rapid City

Tue 1/13

12:35 pm-9:07 pm

1 stop6h 32m

$369

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Mon 1/12

12:35 pm-5:12 pm

1 stop6h 37m

Rapid City

Thu 1/15

12:35 pm-9:07 pm

1 stop6h 32m

$371

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Tue 1/6

6:00 am-1:34 pm

1 stop9h 34m

Rapid City

Tue 1/13

6:00 am-4:31 pm

1 stop8h 31m

$374

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Mon 1/12

5:26 pm-10:28 pm

2 stops7h 02m

Rapid City

Thu 1/15

4:10 pm-11:57 pm

1 stop5h 47m

$376

Washington, D.C.Rapid City

IAD - RAP

IADRAP

Washington, D.C. Dulles Intl

Fri 1/9

6:20 am-3:25 pm

2 stops11h 05m

Rapid City

Sun 1/11

4:10 pm-11:57 pm

1 stop5h 47m

$379

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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

Fastest flight time

6h 00m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Rapid City takes 6h 00m
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.
Search flight deals

  • 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. 6h 00m 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 $304Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
American AirlinesPriceFrom $359Free CancellationRating
7.2
11,049 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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