What are the cheapest airlines flying from Rapid City to Washington, D.C. Dulles Intl Airport round-trip?

Our cheapest airline available from Rapid City to Washington, D.C. Dulles Intl Airport is United Airlines. Our recent data shows that you can find tickets from as low as $385 on this airline. Additional options worth looking into are American Airlines and Delta, starting at $460 and $505 round-trip. Users have found that United Airlines is 25% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Rapid City to Washington, D.C. Dulles Intl Airport one-way?

To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $178. Delta flights start at $183 while deals on United Airlines start at $218 one-way.

What is the cheapest month to book a flight from Rapid City to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Rapid City to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Rapid City to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from Rapid City to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Rapid City to Washington, D.C. Dulles Intl Airport flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Rapid City to Washington, D.C. Dulles Intl Airport?

Flights from Rapid City to Washington, D.C. Dulles Intl Airport are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C. Dulles Intl Airport.

What is the cheapest month to fly from Rapid City to Washington, D.C. Dulles Intl Airport?

Our data shows that December tends to be the cheapest month to fly to Washington, D.C. Dulles Intl Airport from Rapid City. Users have commonly found prices around $493 for the month, but tickets can be as low as $269. Due to multiple factors, prepare for potentially higher prices in February.

What is the cheapest time of day to fly from RAP to IAD?

It’s typically best to fly out from Rapid City to Washington, D.C. Dulles Intl Airport at noon. Doing so could potentially save you 21% on the flight price compared to flying in the morning, which is usually more expensive.

Most accurate provider : When it comes to deals on Rapid City-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Rapid City-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Rapid City-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Rapid City-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Rapid City-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from Rapid City to Washington, D.C. Dulles Intl?

For a flight from Rapid City to Washington, D.C. Dulles Intl, you will be flying from Rapid City. Rapid City (RAP) is just 9.0 mi from the center of the city. Rapid City is the only Rapid City airport and it handles 0 outbound flights to Washington, D.C. Dulles Intl per day. 1 airline has flights to Washington, D.C. Dulles Intl from Rapid City on a regular basis.

Can I find deals for flights from Rapid City to Dulles Intl that include hotel bookings?

Yes. In addition to deals on Rapid City to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Rapid City to Dulles Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rapid City to Dulles Intl.

Can I find deals for business class flights from Rapid City to Dulles Intl?

Yes. Cheapflights offers flight deals from Rapid City to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$178+ Flights from Rapid City to Washington, D.C. Dulles Intl Airport - Compare & Save Big

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1. Tell us where you want to go

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Cheap flight deals from Rapid City to Dulles Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$385 (United Airlines)
One-way from	$178 (American Airlines)
Popular in	November
Cheapest in	January
Average price	$471

Provider with most accurate pricing for Rapid City-Washington, D.C. Dulles Intl flight deals.

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Provider most trusted by Cheapflights users for Rapid City-Washington, D.C. Dulles Intl flights.

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From Rapid City to Washington, D.C. Dulles Intl

Search Deals

One-way flight from Rapid City to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 13% potential increase in price ($79 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($30 potential savings vs. average RT price).

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Average for round-trip flights in April 2025

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Find flight deals from Rapid City to Dulles Intl

Cheapest flights from Rapid City to Dulles Intl
Explore the most affordable flight options available from Rapid City to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

Wed 6/46:20 amRAP - IAD

1 stop6h 08mUnited Airlines

Tue 6/106:48 amIAD - RAP

1 stop5h 33mUnited Airlines

Deal found 4/28

$327

Tue 6/2411:18 amRAP - IAD

1 stop6h 26mAmerican Airlines

Fri 6/276:55 amIAD - RAP

1 stop5h 49mAmerican Airlines

Deal found 4/28

$412

Wed 5/214:25 pmRAP - IAD

1 stop5h 09mDelta

Sun 5/251:00 pmIAD - RAP

2 stops11h 34mDelta

Deal found 4/29

$505

Best flights from Rapid City to Dulles Intl
Discover carefully curated flight deals from Rapid City to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2025.

Fri 6/64:30 pmRAP - IAD

1 stop6h 04mUnited Airlines

Sun 6/292:39 pmIAD - RAP

1 stop8h 08mUnited Airlines

Deal found 4/29

$385

Sat 6/1412:03 pmRAP - IAD

1 stop8h 36mAmerican Airlines

Sat 6/216:27 amIAD - RAP

1 stop9h 41mAmerican Airlines

Deal found 4/29

$460

Wed 5/214:25 pmRAP - IAD

1 stop5h 09mDelta

Sun 5/251:00 pmIAD - RAP

2 stops11h 34mDelta

Deal found 4/29

$505

Last-minute flights from Rapid City to Dulles Intl
Discover last-minute flight deals from Rapid City to Dulles Intl. Data last updated April 29, 2025 and is based on user searches.

Tue 5/2010:45 amRAP - IAD

1 stop8h 40mUnited Airlines

Tue 5/275:36 pmIAD - RAP

1 stop6h 24mUnited Airlines

Deal found 4/28

$481

Wed 5/214:25 pmRAP - IAD

1 stop5h 09mDelta

Sun 5/251:00 pmIAD - RAP

2 stops11h 34mDelta

Deal found 4/29

$505

Wed 5/215:36 amRAP - IAD

1 stop8h 41mAmerican Airlines

Sat 5/245:26 pmIAD - RAP

2 stops19h 53mAmerican Airlines

Deal found 4/29

$595

One-way flights from Rapid City to Dulles Intl
Search for one-way flight options from Rapid City to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated April 29, 2025.

Wed 7/3011:19 amRAP - IAD

1 stop6h 17mAmerican Airlines

Deal found 4/29

$178

Wed 7/306:50 amRAP - IAD

2 stops7h 35mDelta

Deal found 4/29

$183

Tue 9/25:30 amRAP - IAD

1 stop5h 56mUnited Airlines

Deal found 4/29

$218

Cheapflights Fare Finder

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

Fri 6/6

4:30 pm-12:34 am

1 stop6h 04m

Washington, D.C. Dulles Intl

Sun 6/29

2:39 pm-8:47 pm

1 stop8h 08m

$385

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Sat 6/14

12:03 pm-10:39 pm

1 stop8h 36m

Washington, D.C. Dulles Intl

Sat 6/21

6:27 am-2:08 pm

1 stop9h 41m

$460

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Wed 5/21

4:25 pm-11:34 pm

1 stop5h 09m

Washington, D.C. Dulles Intl

Sun 5/25

1:00 pm-10:34 pm

2 stops11h 34m

$505

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Wed 7/30

11:19 am-7:36 pm

1 stop6h 17m

$178

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Wed 7/30

6:50 am-4:25 pm

2 stops7h 35m

$183

Rapid CityWashington, D.C.

RAP - IAD

RAPIAD

Rapid City

Tue 9/2

5:30 am-1:26 pm

1 stop5h 56m

$218

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Compare providers for flights from Rapid City to Dulles Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Rapid City to Dulles Intl in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
Priceline	Price Accuracy2 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Rapid City-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Rapid City-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Rapid City-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Rapid City-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Rapid City-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Rapid City to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Rapid City with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Rapid City to Washington, D.C. Dulles Intl Airport

Rainfall in Dulles Intl by month

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,929 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,696 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What airport do you fly from for flights from Rapid City to Washington, D.C. Dulles Intl?
For a flight from Rapid City to Washington, D.C. Dulles Intl, you will be flying from Rapid City. Rapid City (RAP) is just 9.0 mi from the center of the city. Rapid City is the only Rapid City airport and it handles 0 outbound flights to Washington, D.C. Dulles Intl per day. 1 airline has flights to Washington, D.C. Dulles Intl from Rapid City on a regular basis.
What are the cheapest airlines flying from Rapid City to Washington, D.C. Dulles Intl Airport round-trip?
Our cheapest airline available from Rapid City to Washington, D.C. Dulles Intl Airport is United Airlines. Our recent data shows that you can find tickets from as low as $385 on this airline. Additional options worth looking into are American Airlines and Delta, starting at $460 and $505 round-trip. Users have found that United Airlines is 25% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Rapid City to Washington, D.C. Dulles Intl Airport one-way?
To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $178. Delta flights start at $183 while deals on United Airlines start at $218 one-way.
Can I find deals for flights from Rapid City to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Rapid City to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Rapid City to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rapid City to Dulles Intl.
Can I find deals for business class flights from Rapid City to Dulles Intl?
Yes. Cheapflights offers flight deals from Rapid City to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Rapid City to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Rapid City to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Rapid City to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top airline flying from Rapid City to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$364	Average$550	FlexibilityNo cancel fee	On-time69%

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$178+ Cheap flights from Rapid City (RAP) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/30. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Rapid City to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Rapid City to Dulles Intl

Most accurate provider

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Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Rapid City to Dulles Intl

Cheapest flights from Rapid City to Dulles IntlExplore the most affordable flight options available from Rapid City to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

Explore the most affordable flight options available from Rapid City to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Rapid City to Washington, D.C. Dulles Intl Airport that are best for you.

Compare providers for flights from Rapid City to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Rapid City to Dulles Intl in April.

Best time to book a flight from Rapid City to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Rapid City with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Rapid City to Washington, D.C. Dulles Intl Airport

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

Related info for your journey

Find useful and relevant information for your journey from Rapid City to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Rapid City to Washington, D.C. Dulles Intl?

What are the cheapest airlines flying from Rapid City to Washington, D.C. Dulles Intl Airport round-trip?

What are the cheapest airlines to fly from Rapid City to Washington, D.C. Dulles Intl Airport one-way?

Can I find deals for flights from Rapid City to Dulles Intl that include hotel bookings?

How can I find direct flights from Rapid City to Dulles Intl?

Can I find deals for business class flights from Rapid City to Dulles Intl?

What is the cheapest month to book a flight from Rapid City to Washington, D.C. Dulles Intl Airport?

Traveling to a place near Rapid City?

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Alternative routes for Rapid City to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Rapid City to Dulles Intl

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Cheapest flights from Rapid City to Dulles Intl
Explore the most affordable flight options available from Rapid City to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.