RDU - IAD

$77 Find Cheap Flights from Raleigh to Washington Dulles Airport - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$177
Typical prices: $215-$391
Breeze Airways, Frontier
Wed 9/12Sat 9/15
RDU - IAD • 1 stop
Cheapest non-stop
$181
Typical prices: $216-$396
United Airlines
Sat 10/6Tue 10/16
RDU - IAD • Non-stop
Nonstop flights
You can fly direct with United Airlines. Average duration is 1h 11m
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 55% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 12% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $261 (round-trip)
Shortest trip • 3h 52m (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

Sat, Sep 12 - Tue, Sep 15
Multiple Airlines Logo
9:48 am - 1:07 pmRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
27h 19m1 stop Ogdensburg
Multiple Airlines Logo
7:50 am - 12:38 pmIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
4h 48m1 stop Atlanta Hartsfield-Jackson
$177Multiple Airlines
Mon, Oct 12 - Mon, Oct 19
Multiple Airlines Logo
1:16 pm - 5:13 pmRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
27h 57m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
6:36 pm - 9:17 amIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
14h 41m2 stops Blountville Tri Cities TN/VA Orlando
$177Multiple Airlines
Thu, Oct 15 - Sun, Oct 18
Frontier Logo
1:16 pm - 12:21 amRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
11h 05m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
9:06 pm - 12:28 amIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
27h 22m1 stop Atlanta Hartsfield-Jackson
$180Frontier
Tue, Sep 29 - Wed, Sep 30
Frontier Logo
1:56 pm - 12:10 amRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
10h 14m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
3:11 pm - 3:54 pmIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
24h 43m1 stop Tampa
$180Frontier
Tue, Oct 6 - Fri, Oct 16
United Airlines Logo
10:40 am - 11:47 amRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
1h 07mnonstop
United Airlines Logo
8:20 am - 9:34 amIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
1h 14mnonstop
$181United Airlines
Mon, Oct 12 - Mon, Oct 19
Multiple Airlines Logo
1:16 pm - 5:13 pmRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
27h 57m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
6:36 pm - 9:17 amIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
14h 41m2 stops Blountville Tri Cities TN/VA Orlando
$181Multiple Airlines
Tue, Oct 6 - Fri, Oct 16
Frontier Logo
6:35 am - 5:18 pmRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
10h 43m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
6:08 pm - 1:59 pmIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
19h 51m1 stop Fort Lauderdale
$182Frontier
Mon, Oct 12 - Mon, Oct 19
Multiple Airlines Logo
1:16 pm - 5:13 pmRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
27h 57m1 stop Atlanta Hartsfield-Jackson
Multiple Airlines Logo
6:36 pm - 9:17 amIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
14h 41m2 stops Blountville Tri Cities TN/VA Orlando
$183Multiple Airlines
Thu, Sep 17 - Fri, Sep 18
Frontier Logo
6:35 am - 5:18 pmRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
10h 43m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
9:04 pm - 12:38 pmIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
15h 34m1 stop Atlanta Hartsfield-Jackson
$184Frontier
Thu, Sep 17 - Sun, Sep 20
United Airlines Logo
6:00 am - 7:07 amRDU  Raleigh-Durham-IAD Washington, D.C. Dulles Intl
1h 07mnonstop
United Airlines Logo
8:20 am - 9:36 amIAD  Washington, D.C. Dulles Intl-RDU Raleigh-Durham
1h 16mnonstop
$213United 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 from Raleigh to Washington, D.C. Dulles Intl Airport with more confidence.

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

Thursday is the cheapest day of the week to fly from Raleigh to Washington, D.C. Dulles Intl Airport, it is 13% cheaper than the average day. Monday is the most expensive day with flight prices 82% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is 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 $239 round-trip.
  • June ($399) and May ($339) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 66% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices 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 55% 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

July

Cheapest flight

$77
Best time to beat the crowds but there is an average 19% increase in price.
Most popular time to fly and prices are also 7% lower on average.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

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

    Among airlines operating Raleigh to Washington, D.C. Dulles Intl Airport flights:

    • United Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

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

    Only United Airlines operates flights between Raleigh and Washington, D.C. Dulles Intl Airport.

  • 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).

  • 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 travelers should check the fare details before booking.

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

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

    • Economy Class
    • Premium Economy Class
    • First Class

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

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $261 round-trip via Atlanta Hartsfield-Jackson (ATL), compared to $275 for nonstop.

  • 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 Boeing 737 MAX 8 variants.

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

    Connecting flights from Raleigh to Washington, D.C. Dulles Intl Airport most commonly pass through:

    • Atlanta Hartsfield-Jackson (ATL) - 50% of one-stop connections
    • Charlotte Douglas (CLT) - 50% of one-stop connections
    Together, these airports account for 100% of one-stop bookings on this route.

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

    Yes. Being flexible with your travel dates can save you up to 52% on the Raleigh to Washington, D.C. Dulles Intl Airport route. Thursday is the cheapest departure day at $239 round-trip on average, while Monday is the most expensive at $497, a difference of $258. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • 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 1 hour 45 minutes.

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

    Morning is 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%, evening flights for 25%, and night flights for 0%.

  • 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.

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

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

    • Earliest: departs at 6:00 am and lands at 7:11 am
    • Latest: departs at 8:00 pm and lands at 9:11 pm.

    The flight takes about 1h 11m.

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

    Last-minute fares on this route - booked within 2 weeks of departure - run 47% above the route average of $273. Book 19 weeks before departure for the lowest fares.

  • 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 1h 11m, 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.

  • 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 $177 to $1,247. That means the highest observed fare was about 7x 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 $98, which is 55% below the typical average for this route.

  • How does United Airlines’s on-time performance compare to other airlines on Raleigh to Washington, D.C. Dulles Intl Airport flights?

    United Airlines is the only airline operating Raleigh to Washington, D.C. Dulles Intl Airport flights. 93% of its flights are on time.

  • How do delay rates compare for morning and evening flights from Raleigh to Washington, D.C. Dulles Intl Airport?

    Night flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • 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 52m, compared with 7h 18m via Atlanta Hartsfield-Jackson (ATL).

  • 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 starting from around $24 for economy cars. Top options include:
    · Dollar
    · Budget
    · Hertz
    · Sixt
    · Thrifty

  • 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 $215 to $391, with an average of $273 over the past 12 months. Anything below $215 counts as a good deal.

  • Which airlines offer Wi-Fi on Raleigh to Washington, D.C. Dulles Intl Airport flights?

    JetBlue is the only airline on the Raleigh to Washington, D.C. Dulles Intl Airport route offering in-flight Wi-Fi. Pricing depends on fare class.

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 can be flexible, aim for a Thursday departure instead of Monday. On this route, Thursday flights average $239 - about $258 less than Monday (52% 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 55% 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 $239 round-trip in that month - typically $160 less than the most expensive month, which is June (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Atlanta Hartsfield-Jackson Airport (ATL) can be cheaper than flying direct. The cheapest layover option averages $261 round-trip on this route - about $14 less than direct flights (based on the last 12 months).

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

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

Information on your arrival and departure airports