Cheap Flights from Raleigh / Durham to Washington Dulles

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 R 1,931. Find the lowest prices on one-way and return tickets right here.

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 June.

Direct flights from Raleigh / Durham to Washington Dulles

Durham to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight foundR 952
Cheapest month to flyJune
Average flight time1 hr, 13 mins
Most popular airlineUnited
Average flights per week144

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 R 1,927. 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 Air Canada fly direct from Raleigh / Durham to Washington Dulles.
As of May 2026, there are 144 flights per week flying from Raleigh / Durham to Washington Dulles.
The cheapest month to fly from Raleigh / Durham to Washington Dulles is usually May.
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 Wednesday, 27 May 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, Frontier Airlines and United offer the cheapest flight tickets to Washington Dulles.

Flying from Raleigh-Durham International Airport (RDU) to Washington Dulles International Airport (IAD): what you need to know

  • Around 1 hour 10 minutes is how long you can expect to be in the air on a direct flight from Raleigh-Durham International Airport to Washington Dulles International Airport.

  • Durham and Washington DC are in the same timezone, UTC-4.

  • Choose from 39 weekly Raleigh-Durham International Airport to Washington Dulles International Airport flights. The 06:00 departure with United Airlines is the earliest available. United Airlines operates the latest service of the day at 20:05.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to board your RDU to IAD flight.

  • During popular months like July, it's best to get to the airport earlier. Plan to arrive two hours before a domestic departure and four hours ahead of international flights whenever you're flying during a peak period in general.

  • United Airlines has direct flights from Raleigh-Durham International Airport to Washington Dulles International Airport. Book with this popular carrier, then get ready to check out the sights in Washington DC — and maybe even more of United States if you have time.

  • The airline most travellers prefer to fly with on this route is United Airlines.

  • United Airlines is the most punctual carrier operating RDU to IAD flights. An exceptional 85.54% of its departures on this route land as scheduled.

  • We make it a breeze to book a flight with a stopover. To see your options for tickets from Raleigh-Durham International Airport to Washington Dulles International Airport, deselect 'Direct flights only.' Then, pick a flight that has a stop long enough to tour the city of your choice. Stopovers between RDU and IAD include:

    • Pittsburgh International Airport

    • Charlotte Douglas International Airport

    • Philadelphia International Airport

How to find the cheapest flights from Raleigh-Durham International Airport (RDU) to Washington Dulles International Airport (IAD)

  • R 952 is the lowest price for a one-way Raleigh-Durham International Airport to Washington Dulles International Airport flight. A return flight starts at R 1,927. These prices can change based on demand and availability.

  • Book six months before you want to fly. After crunching the numbers on our calendar, this is how far you'll want to book ahead to secure cheap tickets from RDU to IAD.

  • Organise your trip for May. That's the cheapest month for flights from Raleigh-Durham International Airport to Washington Dulles International Airport. If you're flexible with your travel dates, use the 'Whole month' tool to see the cheapest price across every month.

  • Save time searching for cheap flights from RDU to IAD by creating a Price Alert. We'll send you an email or push notification on the app when a lower fare becomes available.

  • Lock in the ideal flight for you by using the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Raleigh-Durham International Airport to Washington Dulles International Airport, use the 'Sort by' function. You can also filter by arrival and departure times, airline, and journey duration.

Handy information about Raleigh-Durham International Airport (RDU)

  • 80.09% of flights leaving Raleigh-Durham International Airport land at their destination according to schedule. With its strong performance rating, disruptions are unlikely when jetting out of RDU.

  • To reach Raleigh-Durham International Airport from central Durham, it takes about 20 minutes if you're going by car. This depends on traffic, however. It's approximately 23 kilometres from the airport to the city centre.

  • You can expect a trip time of around 1 hour 10 minutes on public transport.

  • Catching an early flight from Raleigh-Durham International Airport to Washington Dulles International Airport? Avoid the last-minute rush to the terminal (and get some extra shut-eye) by choosing one of these hotels close to RDU:

Arriving at Washington Dulles International Airport (IAD)

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

  • You'll find IAD at 1 Saarinen Circle.

  • Washington Dulles International Airport is roughly 56 kilometres from central Washington DC. The drive time takes around 50 minutes.

  • It takes roughly 3 hours 25 minutes to get there by public transport.

When to fly to Washington Dulles International Airport (IAD)

  • The quietest month for a flight from Raleigh-Durham International Airport to Washington Dulles International Airport is January, while April is the most popular. Choose the ideal time to go to Washington DC based on whether you prefer a faster pace or a more relaxed vibe.

  • Before locking in your flight from Raleigh-Durham International Airport to Washington Dulles International Airport, think about the kind of weather you like. July is the warmest month in Washington DC, with the temperature ranging from 19ºC (66ºF) to 33ºC (91ºF).

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

Explore more of United States

  • Washington DC has plenty to offer, but there are so many other parts of United States waiting to be discovered. Around 322 kilometres north-east of Washington DC, a trip to New York will fill your itinerary to the brim. Start with leading sights like Statue of Liberty, Central Park and Empire State Building.

  • Around 193 kilometres north-east of Washington DC, Philadelphia is another favourite stop in United States. Start your sightseeing at Liberty Bell, Independence Hall and Philadelphia Museum of Art.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.