RDU - IAD

$96 Find Cheap Flights from Raleigh to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Raleigh to Dulles Intl departing on 4/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Raleigh to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Raleigh to Washington, D.C., as well as popular online travel agencies
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41 299 237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$179
Typical prices: $356-$239
Multiple Airlines
Sun 5/17Wed 5/20
RDU - IAD • 2 stops
Cheapest non-stop
$180
Typical prices: $319-$213
United Airlines
Fri 5/15Wed 5/20
RDU - IAD • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Economy Plus seats offer extra legroom.
The Silver Line Metro connects IAD to downtown D.C.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $180 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Every day
You can fly direct with United Airlines. Average duration is 1h 15m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 93% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $212 (round-trip)
Shortest trip • 4h 02m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 37% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 13% price drop
Most popular
Good to know
Good to know
+1
+1
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+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Raleigh to Dulles Intl (RDU-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Raleigh to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Raleigh to Dulles Intl

Sun, May 17 - Wed, May 20
Multiple Airlines Logo
10:15 pm - 2:12 pm
RDU
-
IAD
15h 57m
2 stops
Multiple Airlines Logo
11:12 am - 12:33 am
IAD
-
RDU
13h 21m
1 stop
$179Multiple Airlines
Fri, Apr 17 - Sat, Apr 18
Frontier Logo
3:49 pm - 12:36 am
RDU
-
IAD
8h 47m
1 stop
Frontier Logo
8:12 am - 4:56 pm
IAD
-
RDU
8h 44m
1 stop
$180Frontier
Wed, Apr 22 - Fri, Apr 24
Frontier Logo
4:00 pm - 12:36 am
RDU
-
IAD
8h 36m
1 stop
Frontier Logo
1:08 pm - 8:03 pm
IAD
-
RDU
6h 55m
1 stop
$181Frontier
Sun, May 3 - Sun, May 10
Frontier Logo
3:42 pm - 6:45 pm
RDU
-
IAD
27h 03m
1 stop
Frontier Logo
5:26 pm - 12:24 am
IAD
-
RDU
6h 58m
1 stop
$182Frontier
Sun, May 17 - Wed, May 20
Frontier Logo
12:54 pm - 5:12 pm
RDU
-
IAD
28h 18m
1 stop
Frontier Logo
6:27 pm - 12:33 am
IAD
-
RDU
6h 06m
1 stop
$184Frontier
Sat, Apr 18 - Tue, Apr 21
Frontier Logo
7:31 pm - 12:36 am
RDU
-
IAD
5h 05m
1 stop
Frontier Logo
8:20 am - 3:04 pm
IAD
-
RDU
6h 44m
1 stop
$185Frontier
Fri, Apr 24 - Tue, Apr 28
United Airlines Logo
6:00 am - 7:13 am
RDU
-
IAD
1h 13mnonstop
United Airlines Logo
5:32 pm - 6:50 pm
IAD
-
RDU
1h 18mnonstop
$186United Airlines
Mon, Jun 1 - Thu, Jun 18
Frontier Logo
3:18 pm - 10:12 am
RDU
-
IAD
18h 54m
2 stops
Frontier Logo
7:30 am - 12:20 am
IAD
-
RDU
16h 50m
1 stop
$189Frontier
Sun, May 3 - Tue, May 5
Multiple Airlines Logo
8:00 am - 7:03 am
RDU
-
IAD
23h 03m
2 stops
Multiple Airlines Logo
5:26 pm - 12:33 am
IAD
-
RDU
7h 07m
1 stop
$190Multiple Airlines
Thu, Apr 30 - Mon, May 4
United Airlines Logo
6:00 am - 7:14 am
RDU
-
IAD
1h 14mnonstop
United Airlines Logo
12:53 pm - 2:06 pm
IAD
-
RDU
1h 13mnonstop
$191United Airlines
Booking Insights

KAYAK's insights & trends for Raleigh to Dulles Intl flights

Get data-powered insights and trends into flights from Raleigh to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Raleigh to Washington, D.C. Dulles Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Raleigh to Washington, D.C. Dulles Intl Airport departing in May.

What’s the cheapest day of the week to fly from Raleigh to Washington Dulles Airport?

The average price of all round-trip flights from Raleigh to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

For Raleigh to Washington Dulles Airport, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Washington Dulles Airport back to Raleigh, the best deals are generally found on Thursday, with Tuesday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Raleigh to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Raleigh to Washington, D.C. Dulles Intl Airport is August, where tickets cost $239 (return) on average. On the other hand, the most expensive months are April and March, where the average cost of round-trip tickets is $369 and $359 respectively.

Can I save money by flying with a layover from Raleigh to Washington, D.C. Dulles Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $297, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Raleigh to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Raleigh to Washington, D.C. Dulles Intl Airport, you should book around 4 weeks before departure, which saves you about 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Expert advice

Expert advice for your flight from Raleigh to Dulles Intl

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa, Ethiopian Air and RDU

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Good to know

Low seasonJanuary
Cheapest flight$96
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Raleigh to Washington Dulles Airport

When to book flights from Raleigh to Dulles Intl

Are your dates flexible? Find out the best times to travel from Raleigh to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Raleigh to Washington Dulles Airport flights

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

    In the last 3 days, the lowest price for a flight from Raleigh to Washington, D.C. Dulles Intl Airport was $96 for a one-way ticket and $179 for a round-trip.

  • Do I need a passport to fly between Raleigh and Washington Dulles Airport?

    A passport is not required to fly from Raleigh to Washington Dulles Airport.

  • Which airlines offer Wi-Fi service onboard planes from Raleigh to Washington Dulles Airport?

    Delta, American Airlines, JetBlue, SWISS, and Air France offer inflight Wi-Fi service on the Raleigh to Washington Dulles Airport flight route.

  • Which aircraft models fly most regularly from Raleigh to Washington Dulles Airport?

    The Canadair (Bombardier) Regional Jet 900 is the aircraft model that flies most regularly on the Raleigh to Washington Dulles Airport flight route.

  • Which airline alliances offer flights from Raleigh to Washington Dulles Airport?

    Star Alliance is the only airline alliance operating flights between Raleigh and Washington Dulles Airport.

  • On which days can I fly direct from Raleigh to Washington Dulles Airport?

    There are nonstop flights from Raleigh to Washington Dulles Airport on a daily basis.

  • How does KAYAK find such low prices on flights from Raleigh to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Raleigh to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Raleigh to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Raleigh is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Raleigh to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Raleigh with another airline. Booking your flights between Raleigh and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Raleigh to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Raleigh up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Raleigh to Washington, D.C. Dulles Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $203 or less one-way and $407 or less round-trip.

Prefer to fly direct from Raleigh to Washington Dulles Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Raleigh-Durham to Washington, D.C. Dulles Intl.
Find which airlines fly direct from Raleigh-Durham Airport to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

Raleigh-Durham to Washington, D.C. Dulles Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to Raleigh-Durham

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top airline flying from Raleigh to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Raleigh to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Raleigh to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9546 reviews
7.3Comfort
7.7Boarding
7.1Entertainment
6.6Food
8.1Crew
Airline reviews

I liked that it was on time, however, the food was not good.

8.0 ExcellentAnonymous, Apr 2026
HND - IAD
Read more United Airlines reviews

I liked that it was on time, however, the food was not good.

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Everything you need to know for your flight from Raleigh to Dulles Intl

Information on your arrival and departure airports