RDU - IAD

$59 Find Cheap Flights from Raleigh to Washington Dulles Airport - Compare and Save

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Everything you should know

Cheapest round-trip
$188
Typical prices: $235-$536
Frontier
Sat 12/1Sun 12/2
RDU - IAD • 2 stops
Cheapest non-stop
$229
Typical prices: $235-$530
United Airlines
Mon 12/3Fri 12/7
RDU - IAD • Non-stop
Nonstop flights
You can fly direct with United Airlines. Average duration is 1h 14m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 93% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 19 weeks in advance save around 61% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 23% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $366 (round-trip)
Shortest trip • 3h 59m (one-way)
Insights
Insights
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We hope you love your trip to Washington, D.C. Dulles Intl Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Raleigh to Dulles Intl

Tue, Dec 1 - Wed, Dec 2
Frontier Logo
6:44 pm - 2:49 pmRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
20h 05m2 stops Fort Lauderdale Atlanta Hartsfield-Jackson
Frontier Logo
10:33 pm - 11:39 amIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
13h 06m1 stop Atlanta Hartsfield-Jackson
$188Frontier
Wed, Dec 2 - Sat, Dec 5
Frontier Logo
7:09 am - 2:49 pmRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
7h 40m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
3:34 pm - 11:26 amIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
19h 52m2 stops Fort Lauderdale Atlanta Hartsfield-Jackson
$190Frontier
Wed, Dec 2 - Sat, Dec 5
Frontier Logo
7:09 am - 9:46 pmRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
14h 37m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale
Frontier Logo
10:35 pm - 11:26 amIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
12h 51m1 stop Atlanta Hartsfield-Jackson
$192Frontier
Wed, Dec 9 - Fri, Dec 11
Frontier Logo
6:44 pm - 5:38 pmRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
22h 54m2 stops Fort Lauderdale Atlanta Hartsfield-Jackson
Frontier Logo
10:35 pm - 11:26 amIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
12h 51m1 stop Atlanta Hartsfield-Jackson
$199Frontier
Fri, Feb 19 - Sun, Feb 21
Frontier Logo
6:35 pm - 12:19 amRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
5h 44m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
10:57 pm - 5:40 pmIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
18h 43m1 stop Atlanta Hartsfield-Jackson
$200Frontier
Thu, Dec 10 - Sun, Jan 17
Frontier Logo
6:59 am - 8:28 pmRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
13h 29m2 stops Atlanta Hartsfield-Jackson Orlando
Frontier Logo
10:57 pm - 2:33 pmIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
15h 36m1 stop Atlanta Hartsfield-Jackson
$201Frontier
Wed, Dec 2 - Wed, Dec 9
Frontier Logo
6:44 pm - 2:48 pmRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
20h 04m2 stops Fort Lauderdale Atlanta Hartsfield-Jackson
Frontier Logo
10:35 pm - 9:02 pmIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
22h 27m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale
$203Frontier
Mon, Dec 7 - Mon, Dec 14
Frontier Logo
6:44 pm - 2:49 pmRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
20h 05m2 stops Fort Lauderdale Atlanta Hartsfield-Jackson
Frontier Logo
10:35 pm - 9:02 pmIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
22h 27m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale
$203Frontier
Thu, Dec 3 - Mon, Dec 7
United Airlines Logo
10:29 am - 11:40 amRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
1h 11mnonstop
United Airlines Logo
10:25 pm - 11:44 pmIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
1h 19mnonstop
$229United Airlines
Wed, Dec 30 - Tue, Feb 2
United Airlines Logo
10:35 am - 11:46 amRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
1h 11mnonstop
United Airlines Logo
5:50 pm - 7:05 pmIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
1h 15mnonstop
$229United Airlines
Booking Insights

Price, demand and travel trends for Raleigh to Washington, D.C. Dulles Intl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

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

Round-trip flights from Raleigh to Washington, D.C. Dulles Intl Airport typically range from $235 to $536. The lowest price found in the past 5 days was $188, on Frontier.

What's the cheapest day of the week to fly from Raleigh to Washington, D.C. Dulles Intl Airport?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Raleigh to Washington, D.C. Dulles Intl Airport. It’s 25% cheaper than the average day, while Monday is the most expensive, with prices 60% higher.

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

•December is the cheapest month to fly from Raleigh to Washington, D.C. Dulles Intl Airport at $254 round-trip.
•November ($556) and June ($399) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 118% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from Raleigh to Washington, D.C. Dulles Intl Airport are cheapest 19 weeks before departure. Booking in this window typically costs about 61% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Raleigh to Dulles Intl

 
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.

Key details for Raleigh to Washington, D.C. Dulles Intl Airport flights

Low season

August

Cheapest flight

$59
Beat the crowds with an average 30% drop in travelers.
The most popular month to fly with an average 31% increase in travelers.
One-way flight from Raleigh to Washington, D.C. Dulles Intl 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

Your Raleigh to Washington, D.C. Dulles Intl Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

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

    These are the earliest and latest flight times currently scheduled from Raleigh to Washington, D.C. Dulles Intl Airport:

    • Earliest: departs at 6:00 am and lands at 7:14 am
    • Latest: departs at 8:10 pm and lands at 9:24 pm.

    The flight takes about 1h 14m.

  • What cabin classes can I book on flights from Raleigh to Washington, D.C. Dulles Intl Airport?

    Two cabin classes are available on flights from Raleigh to Washington, D.C. Dulles Intl Airport:

    • Economy Class
    • First Class

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

    A nonstop flight from Raleigh to Washington, D.C. Dulles Intl Airport takes about 1h 14m, covering 224 miles.

  • Do I need a passport to fly from Raleigh to Washington, D.C. Dulles Intl Airport?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Raleigh to Washington, D.C. Dulles Intl Airport flight?

    Round-trip flights from Raleigh to Washington, D.C. Dulles Intl Airport range from $235 to $536, with an average of $330 over the past 12 months. Anything below $235 counts as a good deal.

  • How expensive are last-minute Raleigh to Washington, D.C. Dulles Intl Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) run 40% above the $330 route average. Book 19 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Raleigh to Washington, D.C. Dulles Intl Airport?

    On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $326 round-trip, compared to $366 via a layover through Atlanta Hartsfield-Jackson (ATL).

  • What is the standard checked-bag allowance on flights from Raleigh to Washington, D.C. Dulles Intl Airport?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$80 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Raleigh to Washington, D.C. Dulles Intl Airport?

    The Embraer 175 (Enhanced Winglets) family is used most often on this route, operated mainly by United Airlines. Other aircraft seen on the route include Airbus A319 variants.

  • How are flight departures from Raleigh to Washington, D.C. Dulles Intl Airport spread across the day?

    Morning is most often the busiest departure period on Raleigh to Washington, D.C. Dulles Intl Airport flights, with 50% of flights leaving in that window. Afternoon departures account for 25%, and evening flights for 25%.

  • Have flight prices from Raleigh to Washington, D.C. Dulles Intl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $188 to $1,140. That means the highest observed fare was about 6x higher than the lowest one.

  • How are flight prices from Raleigh to Washington, D.C. Dulles Intl Airport looking right now?

    One-way fares from Raleigh to Washington, D.C. Dulles Intl Airport are currently lower than usual. Average one-way flight prices are about $94, which is 61% below the typical average for this route.

  • What car rental options are available at Washington, D.C. Dulles Intl Airport (IAD)?

    Washington, D.C. Dulles Intl Airport (IAD) hosts 5 major car rental companies, with daily rates averaging $70 for economy cars. Top options include:

    • Hertz
    • Dollar
    • Budget
    • Sixt
    • Thrifty

  • Which airports can I use when flying from Raleigh to Washington, D.C. Dulles Intl Airport?

    Flights from Raleigh to Washington, D.C. Dulles Intl Airport usually depart from Raleigh-Durham (RDU) and arrive at Washington, D.C. Dulles Intl (IAD).

  • What time of day has the fewest delays on flights from Raleigh to Washington, D.C. Dulles Intl Airport?

    Morning flights have the fewest delays on this route, while afternoon departures tend to have the most.

  • At what point is a flight considered delayed from Raleigh to Washington, D.C. Dulles Intl Airport?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Raleigh to Washington, D.C. Dulles Intl Airport route, 7% of flights were delayed in the past 3 months, with delays averaging 1h 22m.

  • Which airports do connecting flights from Raleigh to Washington, D.C. Dulles Intl Airport pass through?

    One-stop flights from Raleigh to Washington, D.C. Dulles Intl Airport most commonly connect through:

    • Atlanta Hartsfield-Jackson (ATL) - 58% of one-stop connections
    • Charlotte Douglas (CLT) - 36% of one-stop connections
    • Orlando (MCO) - 6% of one-stop connections

  • Can I save money by using flexible dates for flights from Raleigh to Washington, D.C. Dulles Intl Airport?

    Yes. Flexible dates can save you up to 53% on flights from Raleigh to Washington, D.C. Dulles Intl Airport. Thursday is the cheapest departure day at $249 round-trip on average, while Monday is the most expensive at $529, a difference of $280.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Raleigh to Washington, D.C. Dulles Intl Airport?

    Only United Airlines currently operates flights between Raleigh and Washington, D.C. Dulles Intl Airport on a regular basis.

  • How much time can I save by choosing a different layover airport from Raleigh to Washington, D.C. Dulles Intl Airport?

    Flying via Charlotte Douglas (CLT) gives the shortest average 1-stop total travel time at 3h 59m, compared with 7h 29m via Atlanta Hartsfield-Jackson (ATL) and 10h 40m via Orlando (MCO).

  • What popular places can I visit in Washington, D.C. Dulles Intl Airport?

    Some of the most popular sights in Washington, D.C. Dulles Intl Airport are Walter E. Washington Convention Center, National Mall and Capital One Arena. These are among the most viewed places in Washington, D.C. Dulles Intl Airport on KAYAK.

  • Which airlines offer free seat selection on Raleigh to Washington, D.C. Dulles Intl Airport flights?

    Only United Airlines currently offers free seat selection on this route. Availability depends on fare class.

  • Which airlines offer extra legroom on Raleigh to Washington, D.C. Dulles Intl Airport flights?

    Only United Airlines currently offers extra legroom on this route. Availability can vary by aircraft type and fare class.

  • Which airlines include bags at no extra cost on Raleigh to Washington, D.C. Dulles Intl Airport flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • United Airlines: a cabin bag and a checked bag in Economy Class
    • JetBlue: a cabin bag in Economy Class class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Your guide to booking Raleigh to Washington, D.C. Dulles Intl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Monday. On this route, Thursday flights average $249, about $280 less than Monday fares (53% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 19 weeks before you fly. On this route, that window historically saves about 61% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Raleigh to Washington, D.C. Dulles Intl Airport trip for December. Fares historically average $254 round-trip in that month - typically $302 less than the most expensive month, which is November (based on the last 12 months).
  • For the best chance of arriving on time, fly with United Airlines. Over the past three months, 93% of United Airlines flights from Raleigh to Washington, D.C. Dulles Intl Airport arrived on time, slightly above the route average of 93%. When flights on this route arrive late, they're delayed by an average of 1h 22m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.

Prefer to fly direct from Raleigh to Washington Dulles Airport?

 
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

More options for your flight from Raleigh to Dulles Intl

Complete your trip to Washington, D.C. with a hotel stay or car rental