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Cheap flights from Rapid City to Washington, D.C. from $188

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Rapid City to Washington, D.C. departing on 8/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Rapid City to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
4:00 pm - 11:33 pm
RAP
-
IAD
5h 33m
1 stop
Delta Logo
7:30 am - 11:12 am
IAD
-
RAP
5h 42m
1 stop
$271Delta
Tue, Oct 20 - Wed, Oct 28
Delta Logo
4:00 pm - 11:33 pm
RAP
-
IAD
5h 33m
1 stop
Delta Logo
6:00 am - 1:52 pm
IAD
-
RAP
9h 52m
2 stops
$276Delta
Tue, Oct 20 - Wed, Oct 28
Delta Logo
2:25 pm - 12:20 am
RAP
-
IAD
7h 55m
2 stops
Delta Logo
7:00 am - 3:46 pm
IAD
-
RAP
10h 46m
2 stops
$281Delta
Tue, Oct 20 - Wed, Oct 28
Delta Logo
2:32 pm - 11:21 pm
RAP
-
IAD
6h 49m
1 stop
Delta Logo
7:30 am - 1:52 pm
IAD
-
RAP
8h 22m
1 stop
$300Delta
Wed, Aug 19 - Fri, Oct 30
Delta Logo
2:32 pm - 11:21 pm
RAP
-
IAD
6h 49m
1 stop
Delta Logo
6:10 am - 11:12 am
IAD
-
RAP
7h 02m
2 stops
$305Delta
Wed, Aug 19 - Thu, Oct 29
United Airlines Logo
5:00 am - 1:26 pm
RAP
-
IAD
6h 26m
1 stop
United Airlines Logo
6:10 am - 10:24 am
IAD
-
RAP
6h 14m
1 stop
$324United Airlines
Wed, Jul 22 - Wed, Aug 5
Delta Logo
2:32 pm - 11:21 pm
RAP
-
IAD
6h 49m
1 stop
Delta Logo
6:00 am - 10:02 am
IAD
-
RAP
6h 02m
1 stop
$325Delta
Thu, Aug 20 - Tue, Aug 25
United Airlines Logo
8:55 am - 5:50 pm
RAP
-
IAD
6h 55m
1 stop
United Airlines Logo
6:15 am - 10:26 am
IAD
-
RAP
6h 11m
1 stop
$329United Airlines
Fri, Aug 28 - Mon, Aug 31
United Airlines Logo
8:55 am - 7:23 pm
RAP
-
IAD
8h 28m
1 stop
United Airlines Logo
6:15 am - 10:26 am
IAD
-
RAP
6h 11m
1 stop
$361United Airlines
Tue, Aug 25 - Sat, Aug 29
Multiple Airlines Logo
10:06 pm - 8:04 am
RAP
-
IAD
31h 58m
1 stop
Multiple Airlines Logo
7:00 am - 2:43 pm
IAD
-
RAP
33h 43m
2 stops
$364Multiple Airlines
Sun, Aug 16 - Wed, Oct 28

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

Our best Delta deals on Rapid City to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Oct 20
RAP4:00 pmRapid City
5h 33m
1 stop
IAD11:33 pmWashington, D.C. Dulles Intl
Oct 28
IAD6:00 amWashington, D.C. Dulles Intl
9h 52m
2 stops
RAP1:52 pmRapid City
$276
Delta
Oct 20
RAP2:25 pmRapid City
7h 55m
2 stops
IAD12:20 amWashington, D.C. Dulles Intl
Oct 28
IAD7:00 amWashington, D.C. Dulles Intl
10h 46m
2 stops
RAP3:46 pmRapid City
$281
Delta
Oct 20
RAP2:25 pmRapid City
7h 08m
1 stop
IAD11:33 pmWashington, D.C. Dulles Intl
Oct 28
IAD7:30 amWashington, D.C. Dulles Intl
5h 42m
1 stop
RAP11:12 amRapid City
$300

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

Our best United Airlines deals on Rapid City to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Aug 29
RAP5:00 amRapid City
6h 30m
1 stop
IAD1:30 pmWashington, D.C. Dulles Intl
Sep 1
IAD6:15 amWashington, D.C. Dulles Intl
6h 11m
1 stop
RAP10:26 amRapid City
$271
United Airlines
Jul 22
RAP5:00 amRapid City
6h 26m
1 stop
IAD1:26 pmWashington, D.C. Dulles Intl
Aug 5
IAD6:10 amWashington, D.C. Dulles Intl
6h 14m
1 stop
RAP10:24 amRapid City
$324
United Airlines
Aug 28
RAP8:55 amRapid City
6h 55m
1 stop
IAD5:50 pmWashington, D.C. Dulles Intl
Aug 31
IAD6:15 amWashington, D.C. Dulles Intl
6h 11m
1 stop
RAP10:26 amRapid City
$329

momondo Fare Finder

 
Customize your flight search to find flights from Rapid City to Washington, D.C. Dulles Intl Airport 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 June 28, 2026.
Use the filters below to find and compare flights from Rapid City to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Tue 10/20

4:00 pm-11:33 pm

1 stop5h 33m

Washington, D.C. Dulles Intl

Wed 10/28

7:30 am-11:12 am

1 stop5h 42m

$271

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Tue 10/20

4:00 pm-11:33 pm

1 stop5h 33m

Washington, D.C. Dulles Intl

Wed 10/28

6:00 am-1:52 pm

2 stops9h 52m

$276

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Tue 10/20

2:25 pm-12:20 am

2 stops7h 55m

Washington, D.C. Dulles Intl

Wed 10/28

7:00 am-3:46 pm

2 stops10h 46m

$281

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Wed 8/19

2:32 pm-11:21 pm

1 stop6h 49m

Washington, D.C. Dulles Intl

Fri 10/30

7:30 am-1:52 pm

1 stop8h 22m

$300

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Wed 8/19

2:32 pm-11:21 pm

1 stop6h 49m

Washington, D.C. Dulles Intl

Thu 10/29

6:10 am-11:12 am

2 stops7h 02m

$305

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Wed 7/22

5:00 am-1:26 pm

1 stop6h 26m

Washington, D.C. Dulles Intl

Wed 8/5

6:10 am-10:24 am

1 stop6h 14m

$324

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Thu 8/20

2:32 pm-11:21 pm

1 stop6h 49m

Washington, D.C. Dulles Intl

Tue 8/25

6:00 am-10:02 am

1 stop6h 02m

$325

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Fri 8/28

8:55 am-5:50 pm

1 stop6h 55m

Washington, D.C. Dulles Intl

Mon 8/31

6:15 am-10:26 am

1 stop6h 11m

$329

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Tue 8/25

8:55 am-7:23 pm

1 stop8h 28m

Washington, D.C. Dulles Intl

Sat 8/29

6:15 am-10:26 am

1 stop6h 11m

$361

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Sun 8/16

10:06 pm-8:04 am

1 stop31h 58m

Washington, D.C. Dulles Intl

Wed 10/28

7:00 am-2:43 pm

2 stops33h 43m

$364

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Rapid City to Washington, D.C. Dulles Intl Airport

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

Can stopping save me money on Rapid City to Washington, D.C. Dulles Intl Airport flights?

You could potentially save up to 38% on your flight if you consider stops on a Rapid City to Washington, D.C. Dulles Intl Airport flight.

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

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

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

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

Fastest flight time

4h 57m

Direct flights

None
The fastest flight from Rapid City to Washington, D.C. Dulles Intl Airport takes 4h 57m
There are no direct flights from Rapid City to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Rapid City to Washington, D.C. Dulles Intl Airport.
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Frequently asked questions about flying from Rapid City to Washington, D.C. Dulles Intl Airport

  • How far is Rapid City to Washington, D.C. Dulles Intl by plane?

    Rapid City and Washington, D.C. Dulles Intl are 1372.9 mi apart from one another. Typically, this will take 4h 57m by plane in normal conditions.

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

    Prices for flights from Rapid City Airport to Washington, D.C. Dulles Intl Airport are updated daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Rapid City Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

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

Compare and see reviews for airlines that fly from Rapid City to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $288Free CancellationRating
7.4
9,899 reviews
Search United Airlines flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
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National Harbor
Arlington
Gettysburg
Winchester
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Laurel
Woodbridge
Fredericksburg
Gaithersburg
Linthicum Heights
Rockville
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Towson
Manassas
Silver Spring
Sterling
Tysons
Springfield
Bethesda

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Rapid City to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Rapid City to Washington, D.C. flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Rapid City.

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

Of course. momondo tracks the price of Rapid City to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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