RDU - IAD

$73 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 8/22. 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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Everything you should know

Cheapest round-trip
$188
Typical prices: $485-$238
United Airlines
Thu 7/2Tue 7/7
RDU - IAD • Non-stop
Cheapest one-way
$73
Typical prices: $89-$198
Breeze Airways
Sat 8/22
RDU - IAD • 1 stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Lufthansa Economy Light suits short trips; Ethiopian Air adds two 50-pound bags.
United Economy Plus adds legroom, while Priority Boarding helps secure bin space.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $188 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with United Airlines. Average duration is 1h 18m
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 $266 (round-trip)
Shortest trip • 3h 59m (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 50% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 19% price drop
Most popular
Good to know
Good to know
+1
+1
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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
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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

Thu, Jul 2 - Tue, Jul 7
United Airlines Logo
10:32 am - 11:43 am
RDU
-
IAD
1h 11mnonstop
United Airlines Logo
8:21 am - 9:34 am
IAD
-
RDU
1h 13mnonstop
$188United Airlines
Tue, Jul 14 - Mon, Aug 10
Frontier Logo
6:15 am - 4:40 pm
RDU
-
IAD
10h 25m
1 stop
Frontier Logo
7:48 am - 10:35 pm
IAD
-
RDU
14h 47m
1 stop
$189Frontier
Wed, Jul 1 - Wed, Jul 29
Frontier Logo
11:50 am - 5:31 pm
RDU
-
IAD
5h 41m
1 stop
Frontier Logo
8:33 pm - 8:01 am
IAD
-
RDU
11h 28m
1 stop
$190Frontier
Tue, Jul 7 - Tue, Jul 14
Frontier Logo
6:14 pm - 5:14 pm
RDU
-
IAD
23h 00m
1 stop
Frontier Logo
7:49 am - 12:04 am
IAD
-
RDU
16h 15m
1 stop
$193Frontier
Tue, Jul 7 - Tue, Jul 14
Frontier Logo
6:15 am - 10:55 pm
RDU
-
IAD
16h 40m
1 stop
Frontier Logo
8:33 pm - 8:11 am
IAD
-
RDU
11h 38m
1 stop
$194Frontier
Thu, Jul 16 - Thu, Jul 30
Frontier Logo
8:56 am - 7:38 pm
RDU
-
IAD
10h 42m
1 stop
Frontier Logo
8:33 pm - 8:11 am
IAD
-
RDU
11h 38m
1 stop
$196Frontier
Thu, Jul 16 - Thu, Aug 6
Frontier Logo
8:56 am - 7:38 pm
RDU
-
IAD
10h 42m
1 stop
Frontier Logo
7:48 am - 10:44 pm
IAD
-
RDU
14h 56m
1 stop
$200Frontier
Wed, Aug 19 - Wed, Aug 26
Multiple Airlines Logo
9:45 am - 1:20 pm
RDU
-
IAD
27h 35m
1 stop
Multiple Airlines Logo
6:22 pm - 9:45 am
IAD
-
RDU
15h 23m
2 stops
$201Multiple Airlines
Tue, Jul 7 - Tue, Jul 14
Frontier Logo
8:56 am - 7:38 pm
RDU
-
IAD
10h 42m
1 stop
Frontier Logo
8:33 pm - 8:11 am
IAD
-
RDU
11h 38m
1 stop
$203Frontier
Tue, Jul 14 - Tue, Aug 4
Frontier Logo
6:15 am - 4:40 pm
RDU
-
IAD
10h 25m
1 stop
Frontier Logo
1:32 pm - 9:25 am
IAD
-
RDU
19h 53m
1 stop
$204Frontier
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 July.

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 Saturday, 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 June, where the average cost of round-trip tickets is $392 and $374 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $319 on average.

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 50% 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 seasonApril
Cheapest flight$73
Best time to beat the crowds but there is an average 37% increase in price.
Most popular time to fly with an average 17% increase in price.
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 5 days, the lowest price for a flight from Raleigh to Washington, D.C. Dulles Intl Airport was $73 for a one-way ticket and $188 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?

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

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

    The Boeing 737 MAX 8 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 $243 or less one-way and $552 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 9804 reviews
6.6Food
7.7Boarding
7.3Comfort
8.1Crew
7.1Entertainment
Airline reviews

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

2.0 MediocreLinda, Jun 2026
LIS - IAD
Read more United Airlines reviews

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

There were no facilities in the middle of the aircraft and premium economy was not allowed to use the business class facilities, and had to share the only two toilets at the back with economy. The upgrade to Premium was definitely not worth it

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

The economy seat was much less comfortable for an international flight in terms of recline and moving space when food tray is expanded. Per entertainment, it would be amazing if I could connect my Bluetooth headset or ear phones to the entertainment screen. Or provide in-flight wifi to connect directly from my own device.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

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

Information on your arrival and departure airports