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Dulles Intl

$66+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — IAD
Sep 15 — Sep 221
Tue 9/15
Tue 9/22
1 adult, Economy
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Cheapflights Tip: The best prices from Raleigh-Durham to Washington, D.C. Dulles Intl are usually found in December or October, booked 61 days in advance, depart on a Saturday or Thursday and return on a Saturday

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 August 16, 2026.

This United Airlines deal was found by Cheapflights users on 8/13. 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.
Sat 9/57:59 pm -
Nonstop1h 14m
Sun 9/610:42 pm -
Nonstop1h 17m
Deal found 8/13$157
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Mon 8/319:13 am -
1 stop6h 54m
Wed 9/306:13 pm -
1 stop19h 46m
Deal found 8/14$158
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Mon 9/287:33 pm -
2 stops24h 36m
Mon 10/59:04 pm -
1 stop15h 34m
Deal found 8/14$159
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Mon 9/281:56 pm -
1 stop10h 14m
Mon 10/59:04 pm -
1 stop15h 34m
Deal found 8/14$161
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Mon 9/146:35 am -
1 stop10h 43m
Wed 9/167:50 am -
1 stop4h 48m
Deal found 8/14$162
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Fri 9/46:05 am -
1 stop11h 09m
Sat 9/58:39 pm -
1 stop11h 53m
Deal found 8/11$163
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Sat 9/56:05 am -
1 stop11h 09m
Mon 9/79:44 pm -
1 stop12h 08m
Deal found 8/12$164
This Trip.com deal was found by Cheapflights users on 8/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:56 pm -
1 stop10h 14m
Mon 9/141:50 pm -
1 stop27h 09m
Deal found 8/14$165
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
Thu 9/101:56 pm -
1 stop10h 14m
Thu 9/177:50 am -
1 stop4h 48m
Deal found 8/16$166
This Kissandfly.com deal was found by Cheapflights users on 8/12. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:05 am -
1 stop11h 09m
Sun 9/68:39 pm -
1 stop11h 53m
Deal found 8/12$167
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Fri 9/46:05 am -
1 stop11h 09m
Mon 9/76:09 pm -
1 stop27h 06m
Deal found 8/11$168

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 August 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$157
(United Airlines)

One-way from

$66
(Trip.com)

Popular in

April

Cheapest in

December

Average price

$309

Good round-trip deal

$454 or less

Good one-way deal

$251 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. 17% potential increase in price ($65 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 August 16, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

RaleighWashington, D.C.

RDU Raleigh-Durham - IAD Washington, D.C. Dulles Intl

RDUIAD

Raleigh-Durham

Sat 9/12

7:59 pm-9:13 pm

Nonstop1h 14m

Washington, D.C. Dulles Intl

Sat 9/19

8:20 am-9:34 am

Nonstop1h 14m

$177

RaleighWashington, D.C.

RDU Raleigh-Durham - IAD Washington, D.C. Dulles Intl

RDUIAD

Raleigh-Durham

Sat 9/5

6:05 am-5:14 pm

1 stop11h 09m

Washington, D.C. Dulles Intl

Sun 9/6

6:20 am-10:28 pm

2 stops16h 08m

$203

RaleighWashington, D.C.

RDU Raleigh-Durham - IAD Washington, D.C. Dulles Intl

RDUIAD

Raleigh-Durham

Wed 10/14

10:40 am-11:47 am

Nonstop1h 07m

Washington, D.C. Dulles Intl

Sun 10/18

10:42 pm-11:59 pm

Nonstop1h 17m

$213

RaleighWashington, D.C.

RDU Raleigh-Durham - IAD Washington, D.C. Dulles Intl

RDUIAD

Raleigh-Durham

Mon 8/31

7:59 pm-9:13 pm

Nonstop1h 14m

Washington, D.C. Dulles Intl

Wed 9/30

12:50 pm-2:07 pm

Nonstop1h 17m

$218

RaleighWashington, D.C.

RDU Raleigh-Durham - IAD Washington, D.C. Dulles Intl

RDUIAD

Raleigh-Durham

Thu 9/24

5:34 am-10:21 am

1 stop4h 47m

Washington, D.C. Dulles Intl

Fri 10/2

7:17 pm-12:28 am

1 stop5h 11m

$225

RaleighWashington, D.C.

RDU Raleigh-Durham - IAD Washington, D.C. Dulles Intl

RDUIAD

Raleigh-Durham

Thu 9/3

5:32 am-10:23 am

1 stop4h 51m

Washington, D.C. Dulles Intl

Sun 9/6

8:28 am-12:45 pm

1 stop4h 17m

$250

RaleighWashington, D.C.

RDU Raleigh-Durham - IAD Washington, D.C. Dulles Intl

RDUIAD

Raleigh-Durham

Fri 10/9

6:00 am-7:07 am

Nonstop1h 07m

Washington, D.C. Dulles Intl

Thu 10/15

10:42 pm-11:59 pm

Nonstop1h 17m

$251

RaleighWashington, D.C.

RDU Raleigh-Durham - IAD Washington, D.C. Dulles Intl

RDUIAD

Raleigh-Durham

Fri 10/16

3:11 pm-11:16 pm

2 stops8h 05m

Washington, D.C. Dulles Intl

Mon 10/19

5:13 pm-11:41 pm

1 stop6h 28m

$297

RaleighWashington, D.C.

RDU Raleigh-Durham - IAD Washington, D.C. Dulles Intl

RDUIAD

Raleigh-Durham

Wed 9/9

3:05 pm-4:19 pm

Nonstop1h 14m

Washington, D.C. Dulles Intl

Thu 9/10

10:42 pm-11:59 pm

Nonstop1h 17m

$337

RaleighWashington, D.C.

RDU Raleigh-Durham - IAD Washington, D.C. Dulles Intl

RDUIAD

Raleigh-Durham

Sun 8/30

6:00 am-7:07 am

Nonstop1h 07m

Washington, D.C. Dulles Intl

Sat 9/12

6:15 am-10:56 am

1 stop4h 41m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 24 resultsSorted by cheapest first
1
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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 August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Raleigh-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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?

Booking 60 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, December is the cheapest month in which you can book a flight from Raleigh to Washington, D.C. Dulles Intl Airport (average of $239). Flying from Raleigh to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $406). 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 August 16, 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 August 15, 2026.

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

How much does it cost to fly round-trip from Raleigh to Washington, D.C. Dulles Intl Airport?

Airfare is below average for this route at the moment.

Raleigh to Washington, D.C. Dulles Intl Airport flights typically cost between $213 and $597 in September.
The cheapest round-trip price found within the last 5 days was $157 on United Airlines (Sep 5-Sep 6).

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
Our travel experts
John Walton

John Walton

Expert on RDU

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

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 August 16, 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
10,105 reviews

Entertainment

7.1

Boarding

7.7

Overall

7.4

Crew

8.1

Food

6.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
10,105 reviews
United Airlines
7.4
Good
10,105 reviews

Entertainment

7.1

Boarding

7.7

Overall

7.4

Crew

8.1

Food

6.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 17 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 14m. Fly via United Airlines or Delta to get the fastest option. Raleigh and Washington, D.C. Dulles Intl Airport are separated by a distance of 224 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 ($179), offers the cheapest pricing from Raleigh to Washington, D.C. Dulles Intl Airport. United Airlines is 41% 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: Ethiopian Air (97%), ANA (97%), GoJet( 90%).

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

    On average you can expect to pay $2,236 for a flight from Raleigh to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $132 while the most popular route, (Raleigh-Durham - Washington, D.C. Dulles Intl) is currently priced at $157.

  • 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, December is the cheapest month in which you can book a flight from Raleigh to Washington, D.C. Dulles Intl Airport (average of $239). Flying from Raleigh to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $406). 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
Owings Mills
Arlington
Tysons
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Fredericksburg
Falls Church
Hanover
Laurel
Sterling
Oxon Hill
Clinton
Hunt Valley
Woodbridge

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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 August 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$179Average$285FlexibilityNo cancel feeOn-time69%

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