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Cheap Flights from Durham (RDU) to Washington D.C. (IAD)

Compare Raleigh / Durham to Washington Dulles flight deals

Find the cheapest month or even day of the year to fly to Washington Dulles

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Flight deals from Raleigh / Durham to Washington Dulles

Looking for a cheap last-minute deal or the best return flight from Raleigh / Durham Airport to Washington Dulles Airport? If you want to travel next month, return fares start from $187. Find the lowest prices on one-way and return tickets right here.
Washington D.C..$187 per passenger.Departing Wed, 2 Sep, returning Mon, 7 Sep.Return flight with United.Outbound direct flight with United departs from Raleigh / Durham on Wed, 2 Sep, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Mon, 7 Sep, arriving in Raleigh / Durham.Price includes taxes and charges.From $187, select.
Washington D.C..$187 per passenger.Departing Mon, 24 Aug, returning Sat, 5 Sep.Return flight with United.Outbound direct flight with United departs from Raleigh / Durham on Mon, 24 Aug, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sat, 5 Sep, arriving in Raleigh / Durham.Price includes taxes and charges.From $187, select.
Washington D.C..$187 per passenger.Departing Sat, 15 Aug, returning Wed, 19 Aug.Return flight with United.Outbound direct flight with United departs from Raleigh / Durham on Sat, 15 Aug, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Wed, 19 Aug, arriving in Raleigh / Durham.Price includes taxes and charges.From $187, select.
Washington D.C..$187 per passenger.Departing Thu, 15 Oct, returning Mon, 26 Oct.Return flight with United.Outbound direct flight with United departs from Raleigh / Durham on Thu, 15 Oct, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Mon, 26 Oct, arriving in Raleigh / Durham.Price includes taxes and charges.From $187, select.
Washington D.C..$187 per passenger.Departing Sat, 26 Sep, returning Tue, 6 Oct.Return flight with United.Outbound direct flight with United departs from Raleigh / Durham on Sat, 26 Sep, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 6 Oct, arriving in Raleigh / Durham.Price includes taxes and charges.From $187, select.
Washington D.C..$277 per passenger.Departing Tue, 15 Dec, returning Tue, 5 Jan.Return flight with United.Outbound direct flight with United departs from Raleigh / Durham on Tue, 15 Dec, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 5 Jan, arriving in Raleigh / Durham.Price includes taxes and charges.From $277, select.
Washington D.C..$277 per passenger.Departing Wed, 13 Jan, returning Wed, 27 Jan.Return flight with United.Outbound direct flight with United departs from Raleigh / Durham on Wed, 13 Jan, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Wed, 27 Jan, arriving in Raleigh / Durham.Price includes taxes and charges.From $277, select.
Washington D.C..$277 per passenger.Departing Sat, 7 Nov, returning Mon, 9 Nov.Return flight with United.Outbound direct flight with United departs from Raleigh / Durham on Sat, 7 Nov, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Mon, 9 Nov, arriving in Raleigh / Durham.Price includes taxes and charges.From $277, select.
Washington D.C..$278 per passenger.Departing Thu, 7 Jan, returning Thu, 11 Feb.Return flight with United.Outbound direct flight with United departs from Raleigh / Durham on Thu, 7 Jan, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Thu, 11 Feb, arriving in Raleigh / Durham.Price includes taxes and charges.From $278, select.
Washington D.C..$288 per passenger.Departing Wed, 14 Oct, returning Wed, 3 Feb.Return flight with United.Outbound direct flight with United departs from Raleigh / Durham on Wed, 14 Oct, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Wed, 3 Feb, arriving in Raleigh / Durham.Price includes taxes and charges.From $288, select.
Washington D.C..$293 per passenger.Departing Sat, 15 Aug, returning Thu, 15 Oct.Return flight with United.Outbound direct flight with United departs from Raleigh / Durham on Sat, 15 Aug, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Thu, 15 Oct, arriving in Raleigh / Durham.Price includes taxes and charges.From $293, select.
Washington D.C..$308 per passenger.Departing Fri, 16 Oct, returning Mon, 2 Nov.Return flight with United.Outbound direct flight with United departs from Raleigh / Durham on Fri, 16 Oct, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Mon, 2 Nov, arriving in Raleigh / Durham.Price includes taxes and charges.From $308, select.
Washington D.C..$340 per passenger.Departing Thu, 3 Jun, returning Fri, 18 Jun.Return flight with United.Outbound direct flight with United departs from Raleigh / Durham on Thu, 3 Jun, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Fri, 18 Jun, arriving in Raleigh / Durham.Price includes taxes and charges.From $340, select.
Washington D.C..$340 per passenger.Departing Thu, 4 Mar, returning Wed, 17 Mar.Return flight with United.Outbound direct flight with United departs from Raleigh / Durham on Thu, 4 Mar, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Wed, 17 Mar, arriving in Raleigh / Durham.Price includes taxes and charges.From $340, select.
Washington D.C..$367 per passenger.Departing Thu, 17 Dec, returning Thu, 24 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Raleigh / Durham on Thu, 17 Dec, arriving in Washington Dulles.Inbound indirect flight with Delta, departs from Washington Dulles on Thu, 24 Dec, arriving in Raleigh / Durham.Price includes taxes and charges.From $367, select.
Washington D.C..$372 per passenger.Departing Fri, 31 Jul, returning Mon, 3 Aug.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Raleigh / Durham on Fri, 31 Jul, arriving in Washington Dulles.Inbound indirect flight with Frontier Airlines, departs from Washington Dulles on Mon, 3 Aug, arriving in Raleigh / Durham.Price includes taxes and charges.From $372, select.

Find the cheapest month to fly from Raleigh / Durham to Washington Dulles

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Raleigh / Durham to Washington Dulles flights are currently cheapest in August.
Jul
from $395
Aug
from $187
Sep
from $187
Oct
from $187
Nov
from $277
Dec
from $367
Jan
from $277
Feb
Find prices
Mar
from $340
Apr
Find prices
May
Find prices
Jun
from $340

Direct flights from Raleigh / Durham to Washington Dulles

Raleigh / Durham to Washington Dulles: Alternative routes

Compare routes from Raleigh / Durham to Washington D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Dulles.

Washington Ronald Reagan

5km from central Washington D.C.
ClosestCheapest
from $187
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Washington Dulles

37km from central Washington D.C.
Cheapest
from $187
Search flights

Baltimore Washington International

44km from central Washington D.C.
Cheapest
from $187
Search flights

Durham to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight found$187
Cheapest month to flyAugust
Average flight time1 hr, 13 mins
Most popular airlineUnited
Average flights per week154

Finding cheap flights from Raleigh / Durham to Washington Dulles: Frequently asked questions

The best price we found for a return flight from Raleigh / Durham to Washington Dulles is $187. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 13 minutes is the average flight time from Raleigh / Durham to Washington Dulles.
United, Lufthansa and Mesa Airlines fly direct from Raleigh / Durham to Washington Dulles.
As of July 2026, there are 154 flights per week flying from Raleigh / Durham to Washington Dulles.
The cheapest month to fly from Raleigh / Durham to Washington Dulles is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Raleigh / Durham Airport to Washington Dulles Airport on Saturday, 15 August 2026.
Yes – the average flight time is 1 hour and 13 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Dulles but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, United offers the cheapest flight tickets to Washington Dulles.

Travelling from Raleigh / Durham Airport (RDU) to Washington Dulles Airport (IAD): what you need to know

  • Take a direct flight from Raleigh / Durham Airport to Washington Dulles Airport and you'll be in the air for an average of 1 hour 10 minutes.

  • Durham and Washington DC are in the same timezone, UTC-5.

  • Flights from RDU to IAD start from 06:00 — the earliest with United Airlines. The last service of the day is at 20:08 with United Airlines. Overall, there are 27 weekly Raleigh / Durham Airport to Washington Dulles Airport flights.

  • To ensure you catch your RDU to IAD flight, leave plenty of time to check in and find your gate. Arriving two hours before international departures and one hour before domestic flights is the standard rule.

  • During popular months such as July, it's a good idea to get to the airport earlier than usual. Arrive two hours before a domestic departure and four hours ahead of an international flight when you fly during a high season in general.

  • Flying into Washington DC (and then discovering more of the United States!) is a breeze with United. This popular carrier has direct flights from Raleigh / Durham Airport to Washington Dulles Airport.

  • United is the most frequently booked airline on this route.

  • With a reliable 83.82% of services arriving as scheduled, United has the best on-time performance for RDU to IAD flights.

  • Think about adding a stopover when booking your ticket from Raleigh / Durham Airport to Washington Dulles Airport. Simply deselect 'Direct flights only' to break up your journey, or maybe even explore a new city along the way. Here's where you can stop between RDU and IAD:

    • Atlanta Hartsfield-Jackson Airport

    • Charlotte Douglas Airport

    • Philadelphia International Airport

Handy information about Raleigh / Durham Airport (RDU)

Arriving at Washington Dulles Airport (IAD)

Getting from Washington Dulles Airport (IAD) to central Washington DC

  • The address for IAD is 1 Saarinen Circle.

  • Washington Dulles Airport to the centre of Washington DC has a drive time of around 45 minutes. It's approximately 40 kilometres away.

  • It'll take around 1 hour 10 minutes if you're using public transport.

When to fly to Washington Dulles Airport (IAD)

  • It's time to plan your trip dates for your flight from Raleigh / Durham Airport to Washington Dulles Airport. July is the busiest month to visit Washington DC. If you like a more low-key vibe, go in February.

  • When booking your flight from Raleigh / Durham Airport to Washington Dulles Airport, think about the type of weather you like. July is the warmest month in Washington DC, with temperatures ranging from 19ºC (66ºF) to 33ºC (91ºF).

  • Search for cheap tickets from RDU to IAD in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between -6ºC (21ºF) and 10ºC (50ºF) on average.

Explore more of the United States

  • You've seen Washington DC, now it's time to explore other parts of the United States. Journey around 322 kilometres north-east to New York to tick off its leading sights. From Central Park to Statue of Liberty and Metropolitan Museum of Art, you'll have a packed itinerary ahead.

  • If you're ready to explore another well-known destination in the United States, consider Philadelphia, about 193 kilometres north-east of Washington DC. Independence Hall, Liberty Bell and Philadelphia Museum of Art are among its highlights.

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Prices shown on this page are estimated lowest prices only. Found in the last 12 days.