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Cheap flights from Rapid City to Washington, D.C. from $216

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 12/5. 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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0 bags

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Delta Logo
2:51 pm - 12:02 amRAP-IAD
7h 11m1 stop
Delta Logo
6:03 am - 10:22 amIAD-RAP
6h 19m1 stop
$269Delta
Find Deal
Thu, Dec 11 - Mon, Dec 15
United Airlines Logo
5:15 am - 1:26 pmRAP-IAD
6h 11m1 stop
United Airlines Logo
12:35 pm - 5:12 pmIAD-RAP
6h 37m1 stop
$329United Airlines
Find Deal
Thu, Dec 18 - Thu, Jan 8
Delta Logo
11:07 am - 6:19 pmRAP-IAD
5h 12m1 stop
Delta Logo
6:03 am - 10:27 amIAD-RAP
6h 24m1 stop
$339Delta
Find Deal
Wed, Nov 19 - Sun, Nov 23
Delta Logo
11:07 am - 12:16 amRAP-IAD
11h 09m2 stops
Delta Logo
6:03 am - 10:27 amIAD-RAP
6h 24m1 stop
$344Delta
Find Deal
Wed, Nov 19 - Sun, Nov 23
Delta Logo
6:00 am - 1:35 pmRAP-IAD
5h 35m1 stop
Delta Logo
5:11 pm - 10:13 amIAD-RAP
19h 02m2 stops
$348Delta
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Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
5:20 am - 1:05 pmRAP-IAD
5h 45m1 stop
United Airlines Logo
3:58 pm - 8:44 pmIAD-RAP
6h 46m1 stop
$349United Airlines
Find Deal
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
1:30 pm - 9:23 pmRAP-IAD
5h 53m1 stop
United Airlines Logo
5:18 pm - 9:59 pmIAD-RAP
6h 41m1 stop
$374United Airlines
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Sat, Nov 15 - Tue, Nov 18
American Airlines Logo
5:18 am - 7:21 pmRAP-IAD
12h 03m2 stops
American Airlines Logo
2:16 pm - 9:16 pmIAD-RAP
9h 00m2 stops
$384American Airlines
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Sat, Nov 15 - Tue, Nov 18
American Airlines Logo
1:47 pm - 10:43 pmRAP-IAD
6h 56m1 stop
American Airlines Logo
2:16 pm - 9:16 pmIAD-RAP
9h 00m2 stops
$424American Airlines
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Thu, Dec 11 - Mon, Dec 15
American Airlines Logo
5:15 am - 4:10 pmRAP-IAD
8h 55m2 stops
American Airlines Logo
2:16 pm - 9:16 pmIAD-RAP
9h 00m2 stops
$644American Airlines
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Thu, Dec 11 - Mon, Dec 15

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
Nov 15
RAP5:18 amRapid City
12h 03m
2 stops
IAD7:21 pmWashington, D.C. Dulles Intl
Nov 18
IAD2:16 pmWashington, D.C. Dulles Intl
9h 00m
2 stops
RAP9:16 pmRapid City
$384
Find similar
American Airlines
Nov 12
RAP5:18 amRapid City
9h 31m
2 stops
IAD4:49 pmWashington, D.C. Dulles Intl
Nov 17
IAD11:25 amWashington, D.C. Dulles Intl
11h 51m
2 stops
RAP9:16 pmRapid City
$419
Find similar
American Airlines
Dec 11
RAP1:47 pmRapid City
6h 56m
1 stop
IAD10:43 pmWashington, D.C. Dulles Intl
Dec 15
IAD2:16 pmWashington, D.C. Dulles Intl
9h 00m
2 stops
RAP9:16 pmRapid City
$424
Find similar

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
Dec 18
RAP5:15 amRapid City
6h 11m
1 stop
IAD1:26 pmWashington, D.C. Dulles Intl
Jan 8
IAD12:35 pmWashington, D.C. Dulles Intl
6h 37m
1 stop
RAP5:12 pmRapid City
$329
Find similar
United Airlines
Feb 19
RAP5:20 amRapid City
5h 45m
1 stop
IAD1:05 pmWashington, D.C. Dulles Intl
Feb 23
IAD3:58 pmWashington, D.C. Dulles Intl
6h 46m
1 stop
RAP8:44 pmRapid City
$349
Find similar
United Airlines
Nov 15
RAP1:30 pmRapid City
5h 53m
1 stop
IAD9:23 pmWashington, D.C. Dulles Intl
Nov 18
IAD5:18 pmWashington, D.C. Dulles Intl
6h 41m
1 stop
RAP9:59 pmRapid City
$374
Find similar

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 November 5, 2025.
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 12/11

2:51 pm-12:02 am

1 stop7h 11m

Washington, D.C. Dulles Intl

Mon 12/15

6:03 am-10:22 am

1 stop6h 19m

$269

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Thu 12/18

5:15 am-1:26 pm

1 stop6h 11m

Washington, D.C. Dulles Intl

Thu 1/8

12:35 pm-5:12 pm

1 stop6h 37m

$329

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Wed 11/19

11:07 am-6:19 pm

1 stop5h 12m

Washington, D.C. Dulles Intl

Sun 11/23

6:03 am-10:27 am

1 stop6h 24m

$339

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Wed 11/19

11:07 am-12:16 am

2 stops11h 09m

Washington, D.C. Dulles Intl

Sun 11/23

6:03 am-10:27 am

1 stop6h 24m

$344

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Thu 2/19

6:00 am-1:35 pm

1 stop5h 35m

Washington, D.C. Dulles Intl

Mon 2/23

5:11 pm-10:13 am

2 stops19h 02m

$348

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Thu 2/19

5:20 am-1:05 pm

1 stop5h 45m

Washington, D.C. Dulles Intl

Mon 2/23

3:58 pm-8:44 pm

1 stop6h 46m

$349

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Sat 11/15

1:30 pm-9:23 pm

1 stop5h 53m

Washington, D.C. Dulles Intl

Tue 11/18

5:18 pm-9:59 pm

1 stop6h 41m

$374

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Sat 11/15

5:18 am-7:21 pm

2 stops12h 03m

Washington, D.C. Dulles Intl

Tue 11/18

2:16 pm-9:16 pm

2 stops9h 00m

$384

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Thu 12/11

1:47 pm-10:43 pm

1 stop6h 56m

Washington, D.C. Dulles Intl

Mon 12/15

2:16 pm-9:16 pm

2 stops9h 00m

$424

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Thu 12/11

5:15 am-4:10 pm

2 stops8h 55m

Washington, D.C. Dulles Intl

Mon 12/15

2:16 pm-9:16 pm

2 stops9h 00m

$644

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

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Tuesday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $436. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Rapid City to Washington, D.C. Dulles Intl Airport for around $958.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Rapid City at noon is the least expensive time of day to depart. momondo users have found prices as low as $458 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $579 on average. Flights to Washington, D.C. Dulles Intl Airport from Rapid City in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Direct flights

None
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 12m 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
9,002 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
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Reston
Manassas
Gaithersburg
Fairfax
Glen Burnie

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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