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Cheap flights from Rapid City to Washington, D.C. from $246

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 1/21. 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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0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
1:00 pm - 11:13 pm
RAP
-
IAD
8h 13m1 stop
United Airlines Logo
6:20 am - 10:31 am
IAD
-
RAP
6h 11m1 stop
$289United Airlines
Thu, Apr 30 - Sat, May 2
Delta Logo
4:29 pm - 11:55 pm
RAP
-
IAD
5h 26m1 stop
Delta Logo
12:38 pm - 10:27 pm
IAD
-
RAP
11h 49m2 stops
$294Delta
Fri, Feb 13 - Tue, Feb 17
Delta Logo
10:54 am - 11:09 pm
RAP
-
IAD
10h 15m2 stops
Delta Logo
12:38 pm - 10:27 pm
IAD
-
RAP
11h 49m2 stops
$300Delta
Fri, Feb 13 - Tue, Feb 17
United Airlines Logo
5:10 am - 1:17 pm
RAP
-
IAD
6h 07m1 stop
United Airlines Logo
2:24 pm - 7:14 pm
IAD
-
RAP
6h 50m1 stop
$339United Airlines
Wed, Jan 21 - Sun, Jan 25
United Airlines Logo
2:40 pm - 11:22 pm
RAP
-
IAD
6h 42m1 stop
United Airlines Logo
4:11 pm - 10:29 pm
IAD
-
RAP
8h 18m1 stop
$369United Airlines
Tue, Feb 3 - Sat, Feb 7
American Airlines Logo
2:21 pm - 10:53 pm
RAP
-
IAD
6h 32m1 stop
American Airlines Logo
6:00 am - 1:51 pm
IAD
-
RAP
9h 51m1 stop
$374American Airlines
Fri, Feb 13 - Tue, Feb 17
American Airlines Logo
1:08 pm - 11:28 pm
RAP
-
IAD
8h 20m1 stop
American Airlines Logo
9:19 am - 4:23 pm
IAD
-
RAP
9h 04m2 stops
$379American Airlines
Thu, Apr 30 - Sat, May 2
United Airlines Logo
10:45 am - 7:21 pm
RAP
-
IAD
6h 36m1 stop
United Airlines Logo
2:31 pm - 7:14 pm
IAD
-
RAP
6h 43m1 stop
$421United Airlines
Tue, Feb 3 - Wed, Feb 4
United Airlines Logo
2:40 pm - 11:39 am
RAP
-
IAD
18h 59m2 stops
United Airlines Logo
2:24 pm - 7:14 pm
IAD
-
RAP
6h 50m1 stop
$423United Airlines
Tue, Feb 3 - Sat, Feb 7
United Airlines Logo
12:35 pm - 11:44 am
RAP
-
IAD
21h 09m2 stops
United Airlines Logo
2:31 pm - 7:14 pm
IAD
-
RAP
6h 43m1 stop
$424United Airlines
Tue, Feb 3 - Wed, Feb 4

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
Apr 30
RAP1:00 pmRapid City
8h 13m
1 stop
IAD11:13 pmWashington, D.C. Dulles Intl
May 2
IAD6:20 amWashington, D.C. Dulles Intl
6h 11m
1 stop
RAP10:31 amRapid City
$289
United Airlines
Jan 21
RAP5:10 amRapid City
6h 07m
1 stop
IAD1:17 pmWashington, D.C. Dulles Intl
Jan 25
IAD2:24 pmWashington, D.C. Dulles Intl
6h 50m
1 stop
RAP7:14 pmRapid City
$339
United Airlines
Feb 3
RAP2:40 pmRapid City
6h 42m
1 stop
IAD11:22 pmWashington, D.C. Dulles Intl
Feb 7
IAD4:11 pmWashington, D.C. Dulles Intl
8h 18m
1 stop
RAP10:29 pmRapid City
$369

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

Our best American Airlines deals on Rapid City to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Apr 30
RAP1:08 pmRapid City
8h 20m
1 stop
IAD11:28 pmWashington, D.C. Dulles Intl
May 2
IAD9:19 amWashington, D.C. Dulles Intl
9h 04m
2 stops
RAP4:23 pmRapid City
$379
American Airlines
Jan 21
RAP6:00 amRapid City
9h 16m
2 stops
IAD5:16 pmWashington, D.C. Dulles Intl
Jan 25
IAD6:00 amWashington, D.C. Dulles Intl
9h 34m
1 stop
RAP1:34 pmRapid City
$440
American Airlines
Jan 27
RAP6:00 amRapid City
8h 31m
1 stop
IAD4:31 pmWashington, D.C. Dulles Intl
Jan 30
IAD6:00 amWashington, D.C. Dulles Intl
9h 34m
1 stop
RAP1:34 pmRapid City
$451

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 January 8, 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

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Thu 4/30

1:00 pm-11:13 pm

1 stop8h 13m

Washington, D.C. Dulles Intl

Sat 5/2

6:20 am-10:31 am

1 stop6h 11m

$289

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Fri 2/13

4:29 pm-11:55 pm

1 stop5h 26m

Washington, D.C. Dulles Intl

Tue 2/17

12:38 pm-10:27 pm

2 stops11h 49m

$294

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Fri 2/13

10:54 am-11:09 pm

2 stops10h 15m

Washington, D.C. Dulles Intl

Tue 2/17

12:38 pm-10:27 pm

2 stops11h 49m

$300

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Wed 1/21

5:10 am-1:17 pm

1 stop6h 07m

Washington, D.C. Dulles Intl

Sun 1/25

2:24 pm-7:14 pm

1 stop6h 50m

$339

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Tue 2/3

2:40 pm-11:22 pm

1 stop6h 42m

Washington, D.C. Dulles Intl

Sat 2/7

4:11 pm-10:29 pm

1 stop8h 18m

$369

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Fri 2/13

2:21 pm-10:53 pm

1 stop6h 32m

Washington, D.C. Dulles Intl

Tue 2/17

6:00 am-1:51 pm

1 stop9h 51m

$374

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Thu 4/30

1:08 pm-11:28 pm

1 stop8h 20m

Washington, D.C. Dulles Intl

Sat 5/2

9:19 am-4:23 pm

2 stops9h 04m

$379

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Tue 2/3

10:45 am-7:21 pm

1 stop6h 36m

Washington, D.C. Dulles Intl

Wed 2/4

2:31 pm-7:14 pm

1 stop6h 43m

$421

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Tue 2/3

2:40 pm-11:39 am

2 stops18h 59m

Washington, D.C. Dulles Intl

Sat 2/7

2:24 pm-7:14 pm

1 stop6h 50m

$423

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Tue 2/3

12:35 pm-11:44 am

2 stops21h 09m

Washington, D.C. Dulles Intl

Wed 2/4

2:31 pm-7:14 pm

1 stop6h 43m

$424

Flights are sorted by cheapest round-trip flights 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 69% 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

5h 26m

Direct flights

None
The fastest flight from Rapid City to Washington, D.C. Dulles Intl Airport takes 5h 26m
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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  • 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 5h 26m 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 $318Free CancellationRating
7.4
9,139 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
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Towson
Fredericksburg
Rockville
Gaithersburg
Harpers Ferry
Manassas
Sterling
Fairfax
Springfield

Why use momondo?

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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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