What is the cheapest airline that flies from Rapid City to District of Columbia?

United Airlines and Delta are the most popular carriers operating from Rapid City to District of Columbia

What airlines fly to District of Columbia?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to District of Columbia from Rapid City according to our data. United Airlines is the first choice among our users, with 61% of people opting to fly with this airline when traveling to District of Columbia. Keep in mind that there are 3 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Rapid City Airport to District of Columbia?

Prices for flights from Rapid City Airport to District of Columbia are refreshed on a daily basis.

How many operators does momondo search for flights from Rapid City Airport to District of Columbia?

As of September 2026, there are 2 operators available to choose from for flights from Rapid City Airport to District of Columbia.

How old do you have to be to fly from Rapid City Airport to District of Columbia?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Rapid City Airport to District of Columbia.

What documentation or ID do you need to fly to District of Columbia?

The travel and health documents required for your trip to District of Columbia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at District of Columbia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$301 Cheap Flights from Rapid City to District of Columbia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Rapid City to District of Columbia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:00 am - 12:58 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

5h 58m1 stop Denver Intl

5:40 pm - 9:42 pmIAD Washington, D.C. Dulles Intl-RAP Rapid City

6h 02m1 stop Chicago O'Hare Intl

$301United Airlines

Sat, Dec 5 - Tue, Dec 8

5:00 am - 12:58 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

5h 58m1 stop Denver Intl

5:40 pm - 9:42 pmIAD Washington, D.C. Dulles Intl-RAP Rapid City

6h 02m1 stop Chicago O'Hare Intl

$301United Airlines

Sat, Dec 5 - Tue, Dec 8

4:38 pm - 11:44 pmRAP Rapid City-DCA Washington, D.C. Reagan-National

5h 06m1 stop Minneapolis St Paul

6:59 pm - 10:30 pmDCA Washington, D.C. Reagan-National-RAP Rapid City

5h 31m1 stop Minneapolis St Paul

$301Delta

Sat, Oct 24 - Sat, Oct 31

1:09 pm - 9:14 pmRAP Rapid City-DCA Washington, D.C. Reagan-National

6h 05m1 stop Dallas/Fort Worth

7:12 am - 12:39 pmDCA Washington, D.C. Reagan-National-RAP Rapid City

7h 27m1 stop Dallas/Fort Worth

$301American Airlines

Sat, Dec 5 - Tue, Dec 8

1:09 pm - 9:14 pmRAP Rapid City-DCA Washington, D.C. Reagan-National

6h 05m1 stop Dallas/Fort Worth

7:12 am - 12:39 pmDCA Washington, D.C. Reagan-National-RAP Rapid City

7h 27m1 stop Dallas/Fort Worth

$301American Airlines

Sat, Dec 5 - Tue, Dec 8

1:37 pm - 9:14 pmRAP Rapid City-DCA Washington, D.C. Reagan-National

5h 37m1 stop Chicago O'Hare Intl

6:25 am - 10:31 amDCA Washington, D.C. Reagan-National-RAP Rapid City

6h 06m1 stop Chicago O'Hare Intl

$301United Airlines

Wed, Oct 21 - Wed, Oct 28

4:36 pm - 11:36 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

5h 00m1 stop Minneapolis St Paul

5:14 pm - 10:46 pmIAD Washington, D.C. Dulles Intl-RAP Rapid City

7h 32m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul

$306Delta

Sat, Dec 5 - Tue, Dec 8

4:36 pm - 11:36 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

5h 00m1 stop Minneapolis St Paul

5:14 pm - 10:46 pmIAD Washington, D.C. Dulles Intl-RAP Rapid City

7h 32m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul

$306Delta

Sat, Dec 5 - Tue, Dec 8

1:37 pm - 10:52 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

7h 15m1 stop Chicago O'Hare Intl

6:12 am - 10:31 amIAD Washington, D.C. Dulles Intl-RAP Rapid City

6h 19m1 stop Chicago O'Hare Intl

$330United Airlines

Thu, Oct 22 - Tue, Oct 27

12:47 pm - 10:58 pmRAP Rapid City-DCA Washington, D.C. Reagan-National

8h 11m1 stop Dallas/Fort Worth

5:00 am - 9:54 amDCA Washington, D.C. Reagan-National-RAP Rapid City

6h 54m1 stop Dallas/Fort Worth

$388American Airlines

Wed, Sep 30 - Wed, Oct 7

Cheap last minute flights

Enter your travel dates to find the best prices.

1:36 pm - 9:09 pmRAP Rapid City-DCA Washington, D.C. Reagan-National

5h 33m1 stop Chicago O'Hare Intl

11:57 am - 8:52 pmDCA Washington, D.C. Reagan-National-RAP Rapid City

10h 55m2 stops Chicago O'Hare Intl Denver Intl

$438United Airlines

Wed, Sep 23 - Wed, Sep 30

4:31 pm - 11:23 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

4h 52m1 stop Minneapolis St Paul

6:47 pm - 10:18 pmIAD Washington, D.C. Dulles Intl-RAP Rapid City

5h 31m1 stop Minneapolis St Paul

$464Delta

Fri, Sep 25 - Fri, Oct 2

1:36 pm - 10:54 pmRAP Rapid City-DCA Washington, D.C. Reagan-National

7h 18m1 stop Chicago O'Hare Intl

6:30 am - 10:15 amDCA Washington, D.C. Reagan-National-RAP Rapid City

5h 45m1 stop Chicago O'Hare Intl

$501United Airlines

Wed, Sep 23 - Wed, Sep 30

1:36 pm - 10:54 pmRAP Rapid City-DCA Washington, D.C. Reagan-National

7h 18m1 stop Chicago O'Hare Intl

11:57 am - 8:52 pmDCA Washington, D.C. Reagan-National-RAP Rapid City

10h 55m2 stops Chicago O'Hare Intl Denver Intl

$506United Airlines

Wed, Sep 23 - Wed, Sep 30

1:36 pm - 10:54 pmRAP Rapid City-DCA Washington, D.C. Reagan-National

7h 18m1 stop Chicago O'Hare Intl

11:57 am - 8:52 pmDCA Washington, D.C. Reagan-National-RAP Rapid City

10h 55m2 stops Chicago O'Hare Intl Denver Intl

$626United Airlines

Wed, Sep 23 - Wed, Sep 30

12:47 pm - 11:59 pmRAP Rapid City-DCA Washington, D.C. Reagan-National

9h 12m1 stop Dallas/Fort Worth

5:00 am - 12:17 pmDCA Washington, D.C. Reagan-National-RAP Rapid City

9h 17m1 stop Dallas/Fort Worth

$657American Airlines

Wed, Sep 23 - Wed, Sep 30

6:07 pm - 11:56 amRAP Rapid City-IAD Washington, D.C. Dulles Intl

15h 49m2 stops Chicago O'Hare Intl Charlotte Douglas

6:52 am - 12:17 pmIAD Washington, D.C. Dulles Intl-RAP Rapid City

7h 25m1 stop Dallas/Fort Worth

$684American Airlines

Wed, Sep 23 - Wed, Sep 30

6:07 pm - 11:56 amRAP Rapid City-IAD Washington, D.C. Dulles Intl

15h 49m2 stops Chicago O'Hare Intl Charlotte Douglas

6:14 am - 12:46 pmIAD Washington, D.C. Dulles Intl-RAP Rapid City

8h 32m1 stop Charlotte Douglas

$687American Airlines

Fri, Sep 25 - Fri, Oct 2

10:42 am - 6:05 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

5h 23m1 stop Minneapolis St Paul

6:10 am - 10:01 amIAD Washington, D.C. Dulles Intl-RAP Rapid City

5h 51m1 stop Minneapolis St Paul

$709Delta

Wed, Sep 23 - Wed, Sep 30

10:42 am - 6:05 pmRAP Rapid City-IAD Washington, D.C. Dulles Intl

5h 23m1 stop Minneapolis St Paul

11:44 am - 3:51 pmIAD Washington, D.C. Dulles Intl-RAP Rapid City

6h 07m1 stop Minneapolis St Paul

$778Delta

Wed, Sep 23 - Wed, Sep 30

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United Airlines flights from Rapid City to District of Columbia

Our best United Airlines deals on Rapid City to District of Columbia flight tickets

United Airlines

Dec 5

RAP5:00 amRapid City

5h 58m

1 stop

IAD12:58 pmWashington, D.C. Dulles Intl

Dec 8

IAD5:40 pmWashington, D.C. Dulles Intl

6h 02m

1 stop

RAP9:42 pmRapid City

$301

United Airlines

Oct 22

RAP1:37 pmRapid City

7h 15m

1 stop

IAD10:52 pmWashington, D.C. Dulles Intl

Oct 27

IAD6:12 amWashington, D.C. Dulles Intl

6h 19m

1 stop

RAP10:31 amRapid City

$330

United Airlines

Oct 14

RAP1:37 pmRapid City

7h 15m

1 stop

IAD10:52 pmWashington, D.C. Dulles Intl

Oct 21

IAD6:10 amWashington, D.C. Dulles Intl

6h 05m

1 stop

RAP10:15 amRapid City

$365

Delta flights from Rapid City to District of Columbia

Our best Delta deals on Rapid City to District of Columbia flight tickets

Delta

Dec 5

RAP4:36 pmRapid City

5h 00m

1 stop

IAD11:36 pmWashington, D.C. Dulles Intl

Dec 8

IAD5:14 pmWashington, D.C. Dulles Intl

7h 32m

2 stops

RAP10:46 pmRapid City

$306

Delta

Dec 5

RAP11:06 amRapid City

10h 37m

2 stops

DCA11:43 pmWashington, D.C. Reagan-National

Dec 8

DCA6:59 amWashington, D.C. Reagan-National

9h 01m

2 stops

RAP2:00 pmRapid City

$311

Delta

Oct 22

RAP4:38 pmRapid City

5h 06m

1 stop

DCA11:44 pmWashington, D.C. Reagan-National

Oct 27

DCA7:45 amWashington, D.C. Reagan-National

8h 12m

1 stop

RAP1:57 pmRapid City

$330

momondo Fare Finder

Use the filters below to find and compare flights from Rapid City to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Rapid CityWashington, D.C.

RAP Rapid City - IAD Washington, D.C. Dulles Intl

RAPIAD

Rapid City

Sat 12/5

5:00 am-12:58 pm

1 stop5h 58m

Washington, D.C. Dulles Intl

Tue 12/8

5:40 pm-9:42 pm

1 stop6h 02m

$301

Rapid CityWashington, D.C.

RAP Rapid City - IAD Washington, D.C. Dulles Intl

RAPIAD

Rapid City

Sat 12/5

5:00 am-12:58 pm

1 stop5h 58m

Washington, D.C. Dulles Intl

Tue 12/8

5:40 pm-9:42 pm

1 stop6h 02m

$301

Quickest round-trip

Rapid CityWashington, D.C.

RAP Rapid City - DCA Washington, D.C. Reagan-National

RAPDCA

Rapid City

Sat 10/24

4:38 pm-11:44 pm

1 stop5h 06m

Washington, D.C. Reagan-National

Sat 10/31

6:59 pm-10:30 pm

1 stop5h 31m

$301

Rapid CityWashington, D.C.

RAP Rapid City - DCA Washington, D.C. Reagan-National

RAPDCA

Rapid City

Sat 12/5

1:09 pm-9:14 pm

1 stop6h 05m

Washington, D.C. Reagan-National

Tue 12/8

7:12 am-12:39 pm

1 stop7h 27m

$301

Rapid CityWashington, D.C.

RAP Rapid City - DCA Washington, D.C. Reagan-National

RAPDCA

Rapid City

Sat 12/5

1:09 pm-9:14 pm

1 stop6h 05m

Washington, D.C. Reagan-National

Tue 12/8

7:12 am-12:39 pm

1 stop7h 27m

$301

Rapid CityWashington, D.C.

RAP Rapid City - DCA Washington, D.C. Reagan-National

RAPDCA

Rapid City

Wed 10/21

1:37 pm-9:14 pm

1 stop5h 37m

Washington, D.C. Reagan-National

Wed 10/28

6:25 am-10:31 am

1 stop6h 06m

$301

Rapid CityWashington, D.C.

RAP Rapid City - IAD Washington, D.C. Dulles Intl

RAPIAD

Rapid City

Sat 12/5

4:36 pm-11:36 pm

1 stop5h 00m

Washington, D.C. Dulles Intl

Tue 12/8

5:14 pm-10:46 pm

2 stops7h 32m

$306

Rapid CityWashington, D.C.

RAP Rapid City - IAD Washington, D.C. Dulles Intl

RAPIAD

Rapid City

Sat 12/5

4:36 pm-11:36 pm

1 stop5h 00m

Washington, D.C. Dulles Intl

Tue 12/8

5:14 pm-10:46 pm

2 stops7h 32m

$306

Rapid CityWashington, D.C.

RAP Rapid City - IAD Washington, D.C. Dulles Intl

RAPIAD

Rapid City

Thu 10/22

1:37 pm-10:52 pm

1 stop7h 15m

Washington, D.C. Dulles Intl

Tue 10/27

6:12 am-10:31 am

1 stop6h 19m

$330

Rapid CityWashington, D.C.

RAP Rapid City - DCA Washington, D.C. Reagan-National

RAPDCA

Rapid City

Wed 9/30

12:47 pm-10:58 pm

1 stop8h 11m

Washington, D.C. Reagan-National

Wed 10/7

5:00 am-9:54 am

1 stop6h 54m

$388

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Rapid City to District of Columbia

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

Prices

Airlines

What is the cheapest month to fly to District of Columbia?

In general, December is the cheapest month to fly from Rapid City to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $338. If you don’t want to visit District of Columbia in December, then you should wait until January to fly from Rapid City, when ticket prices are also cheap, with an average price of $338.

Cheap Rapid City to District of Columbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Rapid City to District of Columbia

Best Price Found	$339
Fastest flight time	4h 48m
Direct flights	None

The best one-way flight to District of Columbia from Rapid City in the past 72 hours is $339. The best round-trip flight deal from Rapid City to District of Columbia found on momondo in the last 72 hours is $301.

The fastest flight from Rapid City to District of Columbia takes 4h 48m

There are no direct flights from Rapid City to District of Columbia. There are no popular flight routes from Rapid City to District of Columbia.

Search flight deals

Frequently asked questions about flying from Rapid City to District of Columbia

When did momondo last update prices for flights from Rapid City Airport to District of Columbia?
Prices for flights from Rapid City Airport to District of Columbia are refreshed on a daily basis.
How many operators does momondo search for flights from Rapid City Airport to District of Columbia?
As of September 2026, there are 2 operators available to choose from for flights from Rapid City Airport to District of Columbia.
How old do you have to be to fly from Rapid City Airport to District of Columbia?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Rapid City Airport to District of Columbia.
What documentation or ID do you need to fly to District of Columbia?
The travel and health documents required for your trip to District of Columbia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at District of Columbia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Rapid City to District of Columbia

Compare and see reviews for airlines that fly from Rapid City to District of Columbia with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $201	Free Cancellation	Rating 7.4 10,232 reviews	Search United Airlines flights
Delta	PriceFrom $288	Free Cancellation	Rating 7.8 8,589 reviews	Search Delta flights
American Airlines	PriceFrom $442	Free Cancellation	Rating 7.0 12,087 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Rapid City to District of Columbia?

It is quick and easy to find Rapid City to District of Columbia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to District of Columbia that suits you.

Can I find flights from Rapid City to District of Columbia with flexible booking policies on momondo?

Yes. All flights to District of Columbia from Rapid City on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Rapid City to District of Columbia?

momondo helps you find the best flight between Rapid City and District of Columbia by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Rapid City to District of Columbia right now. Can momondo alert me if prices change?

Price alerts on flights to District of Columbia from Rapid City are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.