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Dulles Intl

$99+ 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — IAD
Mar 16 — Mar 231
Mon 3/16
Mon 3/23
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 August or October, booked 28 days in advance, depart on a Thursday or Wednesday and return on a Thursday

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 February 14, 2026.

This United Airlines deal was found by Cheapflights users on 2/13. 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.
Fri 3/136:15 am
RDU
-
IAD
Nonstop1h 10m
United Airlines
Fri 3/208:25 am
IAD
-
RDU
Nonstop1h 09m
United Airlines
Deal found 2/13$179
This Expedia deal was found by Cheapflights users on 2/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:10 am
RDU
-
IAD
1 stop10h 33m
Frontier
Fri 2/275:37 pm
IAD
-
RDU
1 stop6h 33m
Frontier
Deal found 2/13$181
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 3/64:07 pm
RDU
-
IAD
1 stop8h 24m
Frontier
Wed 3/116:20 am
IAD
-
RDU
2 stops27h 33m
Frontier
Deal found 2/10$183
This Kiwi.com deal was found by Cheapflights users on 2/11. 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.
Thu 3/56:10 am
RDU
-
IAD
1 stop10h 33m
Frontier
Sun 3/86:25 am
IAD
-
RDU
1 stop17h 46m
Frontier
Deal found 2/11$184
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 3/134:07 pm
RDU
-
IAD
1 stop8h 24m
Frontier
Fri 3/206:20 am
IAD
-
RDU
1 stop17h 51m
Frontier
Deal found 2/10$185
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Tue 2/176:15 am
RDU
-
IAD
Nonstop1h 10m
United Airlines
Wed 3/258:25 am
IAD
-
RDU
Nonstop1h 09m
United Airlines
Deal found 2/10$186
This Frontier deal was found by Cheapflights users on 2/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/164:07 pm
RDU
-
IAD
1 stop8h 24m
Frontier
Tue 3/177:00 am
IAD
-
RDU
1 stop8h 17m
Frontier
Deal found 2/12$189
This Trip.com deal was found by Cheapflights users on 2/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:54 pm
RDU
-
IAD
1 stop15h 31m
Frontier
Fri 2/275:37 pm
IAD
-
RDU
1 stop6h 33m
Frontier
Deal found 2/13$191
This Kiwi.com deal was found by Cheapflights users on 2/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/75:35 am
RDU
-
IAD
1 stop18h 56m
Frontier
Mon 3/98:09 am
IAD
-
RDU
1 stop24h 49m
Frontier
Deal found 2/13$193
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Fri 3/136:15 am
RDU
-
IAD
Nonstop1h 10m
United Airlines
Sun 3/158:15 am
IAD
-
RDU
Nonstop1h 09m
United Airlines
Deal found 2/10$194
This Frontier deal was found by Cheapflights users on 2/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/810:38 pm
RDU
-
IAD
1 stop8h 46m
Frontier
Tue 3/107:00 am
IAD
-
RDU
1 stop8h 17m
Frontier
Deal found 2/10$195
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Mon 3/166:15 am
RDU
-
IAD
Nonstop1h 10m
United Airlines
Tue 3/1712:54 pm
IAD
-
RDU
Nonstop1h 10m
United Airlines
Deal found 2/10$197

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 February 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$179
(United Airlines)

One-way from

$99
(United Airlines)

Popular in

March

Cheapest in

August

Average price

$284

Good round-trip deal

$422 or less

Good one-way deal

$164 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. 13% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 14, 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

Fri 3/6

8:07 pm-9:17 pm

Nonstop1h 10m

Washington, D.C. Dulles Intl

Sun 3/8

5:55 pm-7:11 pm

Nonstop1h 16m

$179

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Fri 4/24

10:38 am-11:52 am

Nonstop1h 14m

Washington, D.C. Dulles Intl

Sun 4/26

8:16 am-9:32 am

Nonstop1h 16m

$179

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Fri 7/3

6:10 am-7:21 am

Nonstop1h 11m

Washington, D.C. Dulles Intl

Sat 7/18

8:25 am-9:38 am

Nonstop1h 13m

$179

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Fri 3/13

8:07 pm-9:17 pm

Nonstop1h 10m

Washington, D.C. Dulles Intl

Sun 3/15

8:15 am-9:24 am

Nonstop1h 09m

$179

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Fri 3/13

8:07 pm-9:17 pm

Nonstop1h 10m

Washington, D.C. Dulles Intl

Fri 3/20

8:25 am-9:34 am

Nonstop1h 09m

$189

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Sun 3/8

10:38 pm-7:24 am

1 stop8h 46m

Washington, D.C. Dulles Intl

Tue 3/10

7:00 am-3:17 pm

1 stop8h 17m

$195

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Wed 3/11

4:12 pm-12:31 am

1 stop8h 19m

Washington, D.C. Dulles Intl

Thu 3/12

8:15 am-3:00 pm

1 stop6h 45m

$195

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Sun 4/12

10:38 am-11:52 am

Nonstop1h 14m

Washington, D.C. Dulles Intl

Tue 4/14

8:16 am-9:32 am

Nonstop1h 16m

$197

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Mon 3/16

8:07 pm-9:17 pm

Nonstop1h 10m

Washington, D.C. Dulles Intl

Thu 3/19

8:25 am-9:34 am

Nonstop1h 09m

$197

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Mon 3/16

8:07 pm-9:17 pm

Nonstop1h 10m

Washington, D.C. Dulles Intl

Tue 3/17

8:25 am-9:34 am

Nonstop1h 09m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 17 results
1
2

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 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?

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 February 6, 2026.

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 $116). Flying from Raleigh to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $191). 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 February 14, 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 35% 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 February 7, 2026.

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 evenings 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
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 February 14, 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
9,289 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

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
9,289 reviews
United Airlines
7.4
Good
9,289 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

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 8 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 ($173), offers the cheapest pricing from Raleigh to Washington, D.C. Dulles Intl Airport. United Airlines is 33% 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: Mesa Airlines (100%), Republic Airways (89%), Air China( 88%).

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

    On average you can expect to pay $925 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 $116). Flying from Raleigh to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $191). 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
Silver Spring
Herndon
Fredericksburg
Hanover
Laurel
Linthicum Heights
Rockville
Upper Marlboro
Manassas
Bowie
Largo
McLean
Clinton
Towson

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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 February 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$173Average$255FlexibilityNo cancel feeOn-time69%

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