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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 9/24. 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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Cheap round-trip flights

Delta Logo
6:20 am - 1:55 pmRAP-IAD
5h 35m1 stop
Delta Logo
6:15 am - 10:05 amIAD-RAP
5h 50m1 stop
$294Delta
Find Deal
Thu, Feb 19 - Mon, Feb 23
Delta Logo
10:40 am - 11:02 pmRAP-IAD
10h 22m2 stops
Delta Logo
6:15 am - 10:05 amIAD-RAP
5h 50m1 stop
$299Delta
Find Deal
Thu, Feb 19 - Mon, Feb 23
Delta Logo
10:40 am - 11:02 pmRAP-IAD
10h 22m2 stops
Delta Logo
6:15 am - 10:05 amIAD-RAP
5h 50m1 stop
$339Delta
Find Deal
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
8:45 am - 6:58 pmRAP-IAD
8h 13m1 stop
United Airlines Logo
10:10 pm - 9:58 pmIAD-RAP
25h 48m1 stop
$442United Airlines
Find Deal
Fri, Oct 31 - Fri, Nov 7
United Airlines Logo
8:45 am - 6:58 pmRAP-IAD
8h 13m1 stop
United Airlines Logo
10:18 pm - 10:34 amIAD-RAP
14h 16m2 stops
$458United Airlines
Find Deal
Fri, Oct 31 - Fri, Nov 7
United Airlines Logo
7:00 am - 9:17 pmRAP-IAD
12h 17m2 stops
United Airlines Logo
6:30 am - 10:13 amIAD-RAP
5h 43m1 stop
$478United Airlines
Find Deal
Wed, Sep 24 - Sun, Sep 28
American Airlines Logo
6:00 am - 4:50 pmRAP-IAD
8h 50m1 stop
American Airlines Logo
5:54 pm - 4:03 pmIAD-RAP
24h 09m1 stop
$538American Airlines
Find Deal
Fri, Oct 3 - Mon, Oct 6
American Airlines Logo
4:57 pm - 11:53 pmRAP-IAD
28h 56m2 stops
American Airlines Logo
8:25 pm - 4:03 pmIAD-RAP
21h 38m2 stops
$590American Airlines
Find Deal
Fri, Oct 24 - Mon, Oct 27
American Airlines Logo
6:00 am - 4:50 pmRAP-IAD
8h 50m1 stop
American Airlines Logo
8:25 pm - 4:03 pmIAD-RAP
21h 38m2 stops
$593American Airlines
Find Deal
Fri, Oct 3 - Mon, Oct 6
United Airlines Logo
8:45 am - 6:52 pmRAP-IAD
8h 07m1 stop
United Airlines Logo
10:10 pm - 9:15 amIAD-RAP
13h 05m1 stop
$657United Airlines
Find Deal
Wed, Nov 26 - Sat, Nov 29

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
Feb 19
RAP6:20 amRapid City
5h 35m
1 stop
IAD1:55 pmWashington, D.C. Dulles Intl
Feb 23
IAD6:15 amWashington, D.C. Dulles Intl
5h 50m
1 stop
RAP10:05 amRapid City
$294
Find similar
Delta
Feb 19
RAP10:40 amRapid City
10h 22m
2 stops
IAD11:02 pmWashington, D.C. Dulles Intl
Feb 23
IAD6:15 amWashington, D.C. Dulles Intl
5h 50m
1 stop
RAP10:05 amRapid City
$299
Find similar
Delta
Feb 19
RAP10:40 amRapid City
10h 22m
2 stops
IAD11:02 pmWashington, D.C. Dulles Intl
Feb 23
IAD6:15 amWashington, D.C. Dulles Intl
5h 50m
1 stop
RAP10:05 amRapid City
$339
Find similar

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
Oct 3
RAP6:00 amRapid City
8h 50m
1 stop
IAD4:50 pmWashington, D.C. Dulles Intl
Oct 6
IAD5:54 pmWashington, D.C. Dulles Intl
24h 09m
1 stop
RAP4:03 pmRapid City
$538
Find similar
American Airlines
Oct 24
RAP4:57 pmRapid City
28h 56m
2 stops
IAD11:53 pmWashington, D.C. Dulles Intl
Oct 27
IAD8:25 pmWashington, D.C. Dulles Intl
21h 38m
2 stops
RAP4:03 pmRapid City
$590
Find similar
American Airlines
Oct 3
RAP6:00 amRapid City
8h 50m
1 stop
IAD4:50 pmWashington, D.C. Dulles Intl
Oct 6
IAD8:25 pmWashington, D.C. Dulles Intl
21h 38m
2 stops
RAP4:03 pmRapid City
$593
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 September 8, 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 2/19

6:20 am-1:55 pm

1 stop5h 35m

Washington, D.C. Dulles Intl

Mon 2/23

6:15 am-10:05 am

1 stop5h 50m

$294

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Thu 2/19

10:40 am-11:02 pm

2 stops10h 22m

Washington, D.C. Dulles Intl

Mon 2/23

6:15 am-10:05 am

1 stop5h 50m

$299

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Thu 2/19

10:40 am-11:02 pm

2 stops10h 22m

Washington, D.C. Dulles Intl

Mon 2/23

6:15 am-10:05 am

1 stop5h 50m

$339

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Fri 10/31

8:45 am-6:58 pm

1 stop8h 13m

Washington, D.C. Dulles Intl

Fri 11/7

10:10 pm-9:58 pm

1 stop25h 48m

$442

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Fri 10/31

8:45 am-6:58 pm

1 stop8h 13m

Washington, D.C. Dulles Intl

Fri 11/7

10:18 pm-10:34 am

2 stops14h 16m

$458

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Wed 9/24

7:00 am-9:17 pm

2 stops12h 17m

Washington, D.C. Dulles Intl

Sun 9/28

6:30 am-10:13 am

1 stop5h 43m

$478

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Fri 10/3

6:00 am-4:50 pm

1 stop8h 50m

Washington, D.C. Dulles Intl

Mon 10/6

5:54 pm-4:03 pm

1 stop24h 09m

$538

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Fri 10/24

4:57 pm-11:53 pm

2 stops28h 56m

Washington, D.C. Dulles Intl

Mon 10/27

8:25 pm-4:03 pm

2 stops21h 38m

$590

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Fri 10/3

6:00 am-4:50 pm

1 stop8h 50m

Washington, D.C. Dulles Intl

Mon 10/6

8:25 pm-4:03 pm

2 stops21h 38m

$593

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Wed 11/26

8:45 am-6:52 pm

1 stop8h 07m

Washington, D.C. Dulles Intl

Sat 11/29

10:10 pm-9:15 am

1 stop13h 05m

$657

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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

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 52% 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 06m 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 $348Free CancellationRating
7.4
8,944 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
Gettysburg
National Harbor
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Silver Spring
Colonial Beach
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Fairfax
Gaithersburg
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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