HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$74+ Cheap flights from Raleigh (RDU) 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — IAD
Feb 1 — Feb 81
Sun 2/1
Sun 2/8
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Raleigh to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Raleigh-Durham to Washington, D.C. Dulles Intl are usually found in August or October, booked 28 days in advance, depart on a Thursday or Tuesday and return on a Friday

Cheap flight deals from Raleigh to Dulles Intl

Cheapest flights from Raleigh to Dulles Intl
Explore the most affordable flight options available from Raleigh to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 2, 2026.

This United Airlines deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:00 pmRDU - IAD
Nonstop1h 18mUnited Airlines
Sat 1/312:50 pmIAD - RDU
Nonstop1h 20mUnited Airlines
Deal found 12/30$299
This Delta deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:45 pmRDU - IAD
1 stop6h 07mDelta
Sat 1/36:00 amIAD - RDU
1 stop4h 16mDelta
Deal found 12/30$319
This Delta deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:45 pmRDU - IAD
1 stop6h 07mDelta
Fri 1/24:17 pmIAD - RDU
1 stop4h 31mDelta
Deal found 12/31$326
This United Airlines deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:00 pmRDU - IAD
Nonstop1h 18mUnited Airlines
Sun 1/48:21 amIAD - RDU
Nonstop1h 18mUnited Airlines
Deal found 12/31$366
This Kiwi.com deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:14 pmRDU - IAD
2 stops35h 04mMultiple Airlines
Sat 1/35:15 amIAD - RDU
1 stop5h 00mMultiple Airlines
Deal found 12/30$690
This American Airlines deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:37 pmRDU - IAD
1 stop3h 13mAmerican Airlines
Fri 1/21:57 pmIAD - RDU
2 stops6h 56mAmerican Airlines
Deal found 12/31$744

Find flight deals from Raleigh to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Raleigh (RDU) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 2, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$171
(United Airlines)

One-way from

$74
(Kiwi.com)

Popular in

February

Cheapest in

August

Average price

$249

Good round-trip deal

$458 or less

Good one-way deal

$206 or less
Provider with most accurate pricing for Raleigh-Durham-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Raleigh-Durham-Washington, D.C. Dulles Intl flights.
Search Deals
From Raleigh-Durham to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Raleigh-Durham to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Raleigh-Durham to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Raleigh-Durham to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Raleigh to Dulles Intl 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, Cheapflights users made 2,558,603 searches. Data last updated January 2, 2026.
Use the filters below to find and compare flights from Raleigh to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Raleigh

Fly to

Dulles Intl

Route

Depart

Return

Price

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Thu 2/19

8:00 pm-9:10 pm

Nonstop1h 10m

Washington, D.C. Dulles Intl

Mon 2/23

10:33 pm-11:44 pm

Nonstop1h 11m

$171

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Fri 2/20

8:00 pm-9:10 pm

Nonstop1h 10m

Washington, D.C. Dulles Intl

Mon 2/23

10:33 pm-11:44 pm

Nonstop1h 11m

$175

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Sat 2/28

10:31 am-11:41 am

Nonstop1h 10m

Washington, D.C. Dulles Intl

Sun 3/1

12:53 pm-2:03 pm

Nonstop1h 10m

$175

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Fri 1/23

3:02 pm-4:12 pm

Nonstop1h 10m

Washington, D.C. Dulles Intl

Sun 1/25

10:34 pm-11:44 pm

Nonstop1h 10m

$179

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Wed 3/25

8:07 pm-9:17 pm

Nonstop1h 10m

Washington, D.C. Dulles Intl

Sat 4/4

10:31 pm-11:44 pm

Nonstop1h 13m

$179

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Wed 5/6

7:50 pm-9:03 pm

Nonstop1h 13m

Washington, D.C. Dulles Intl

Wed 5/13

10:31 pm-11:44 pm

Nonstop1h 13m

$179

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Fri 1/16

9:15 pm-8:38 am

1 stop11h 23m

Washington, D.C. Dulles Intl

Sun 1/18

6:00 am-12:10 am

1 stop18h 10m

$191

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Tue 3/10

10:30 am-11:40 am

Nonstop1h 10m

Washington, D.C. Dulles Intl

Tue 3/10

5:55 pm-7:11 pm

Nonstop1h 16m

$197

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Mon 2/16

6:15 am-7:25 am

Nonstop1h 10m

Washington, D.C. Dulles Intl

Fri 2/20

10:33 pm-11:44 pm

Nonstop1h 11m

$197

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Mon 3/16

6:15 am-7:25 am

Nonstop1h 10m

Washington, D.C. Dulles Intl

Wed 3/18

10:33 pm-11:44 pm

Nonstop1h 11m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/30

Showing 1-10 of 24 results
1
2
3

Compare providers for flights from Raleigh 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 Raleigh to Dulles Intl in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust 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 Raleigh-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 Raleigh-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Raleigh-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 Raleigh-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 Raleigh-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 Raleigh to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Raleigh 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 Raleigh to Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from Raleigh to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Raleigh to Dulles Intl. Price data was last updated on December 26, 2025.

Booking 28 days in advance of your planned departure date is, on average, the best time to get cheap flights from Raleigh to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, April is the cheapest month in which you can book a flight from Raleigh to Washington, D.C. Dulles Intl Airport (average of $121). Flying from Raleigh to Washington, D.C. Dulles Intl Airport in March is currently the most expensive (average of $192). 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 time of day to fly from RDU to IAD?

Find hourly flight availability from Raleigh to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 2, 2026.

It’s optimal to fly from Raleigh to Washington, D.C. Dulles Intl Airport in the morning. By choosing this option you can save up to 36% on the cost of your flight, compared to a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Raleigh to Dulles Intl. Price data was last updated on December 27, 2025.

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

The best insider tips for Raleigh to Washington, D.C. Dulles Intl Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Raleigh to Washington, D.C. Dulles Intl Airport trip
Airports
RDU

RDU offers free Wi-Fi throughout the terminals. Connect to the 'RDU Free WiFi' network for seamless browsing before your flight.

Read more about RDUBy John Walton
IAD

The Washington Metro Silver line reaches IAD in under 40 minutes, offering a cost-effective way to reach the city.

Read more about IADBy Ramsey Qubein
Our travel experts
John Walton

John Walton

Expert on RDU

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated January 2, 2026.
See what other customers who have flown with United Airlines from Raleigh to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,132 reviews

Food

6.6

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,132 reviews
United Airlines
7.4
Good
9,132 reviews

Food

6.6

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

Find useful and relevant information for your journey from Raleigh 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 Raleigh to Washington, D.C. Dulles Intl?

    Located just 11.1 mi from the city center, Raleigh-Durham is the airport most travelers will use when flying to Washington, D.C. Dulles Intl from Raleigh. Booking flights from Raleigh-Durham (RDU) to Washington, D.C. Dulles Intl should be relatively easy as there are 12 daily outbound flights to Washington, D.C. Dulles Intl from 1 airline.

  • How long is the flight from Raleigh to Washington, D.C. Dulles Intl Airport?

    There are many flights that can get you from Raleigh to Washington, D.C. Dulles Intl Airport in 1h 10m. Fly via United Airlines to get the fastest option. Raleigh and Washington, D.C. Dulles Intl Airport are separated by a distance of 224 mi. Most flights are nonstop.

  • What is the cheapest airline to fly from Raleigh to Washington, D.C. Dulles Intl Airport round-trip?

    According to our current data, United Airlines ($178), offers the cheapest pricing from Raleigh to Washington, D.C. Dulles Intl Airport. United Airlines is 32% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Raleigh to Washington, D.C. Dulles Intl Airport?

    Before booking your flight to Washington, D.C. Dulles Intl Airport from Raleigh, check out the most reliable airlines to get you to your destination on time: ITA Airways (100%), Air China (94%), Republic Airways( 93%).

  • What are the cheapest flights from Raleigh to Washington, D.C. Dulles Intl Airport?

    On average you can expect to pay $927 for a flight from Raleigh to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $98 while the most popular route, (Raleigh-Durham - Washington, D.C. Dulles Intl) is currently priced at $133.

  • Can I find deals for flights from Raleigh to Dulles Intl that include hotel bookings?

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

  • How can I find direct flights from Raleigh to Dulles Intl?

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

  • Can I find deals for business class flights from Raleigh to Dulles Intl?

    Yes. Cheapflights offers flight deals from Raleigh 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 Raleigh to Washington, D.C. Dulles Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from Raleigh to Washington, D.C. Dulles Intl Airport (average of $121). Flying from Raleigh to Washington, D.C. Dulles Intl Airport in March is currently the most expensive (average of $192). 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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Raleigh to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Charlotte to Dulles Intl flights
Charlotte to Baltimore flights
Raleigh to Reagan-National flights
Raleigh to Baltimore flights
Charlotte to Reagan-National flights
Asheville to Dulles Intl flights
Asheville to Baltimore flights
Asheville to Reagan-National flights
Knoxville to Dulles Intl flights
Myrtle Beach to Baltimore flights
Knoxville to Reagan-National flights
Greensboro to Dulles Intl flights
Myrtle Beach to Dulles Intl flights
Wilmington to Reagan-National flights
Wilmington to Dulles Intl flights
Greensboro to Baltimore flights
Knoxville to Baltimore flights
Greensboro to Reagan-National flights
Norfolk to Baltimore flights
Myrtle Beach to Reagan-National flights
Norfolk to Dulles Intl flights
Wilmington to Baltimore flights
Norfolk to Reagan-National flights
Blountville to Baltimore flights
Blountville to Dulles Intl flights
Blountville to Reagan-National flights
New Bern to Dulles Intl flights
Fayetteville to Baltimore flights
New Bern to Baltimore flights
Fayetteville to Reagan-National flights
Fayetteville to Dulles Intl flights
Jacksonville to Dulles Intl flights
Jacksonville to Baltimore flights
Jacksonville to Reagan-National flights

Top airline flying from Raleigh to Dulles Intl

Discover the top airline that operate flights from Raleigh to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$178Average$256FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.