United flights to Washington from Raleigh

View S$168 flight on Thu, 18 Dec, 2025Opens in a new window
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United flights from Raleigh to Washington (RDU→IAD)

Prices were available within the past 7 days and start at S$168 for one-way flights and S$377 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, 18 Dec - Sun, 21 Dec
RDU
Raleigh
IAD
Washington
S$377 Return, found 2 days ago
S$377
Return
found 2 days ago
Select United flight, departing Thu, 18 Dec from Raleigh to Washington, returning Sun, 21 Dec, priced at S$377 found 2 days ago
United
Fri, 14 Nov - Sun, 16 Nov
RDU
Raleigh
IAD
Washington
S$390 Return, found 3 days ago
S$390
Return
found 3 days ago
Select United flight, departing Fri, 14 Nov from Raleigh to Washington, returning Sun, 16 Nov, priced at S$390 found 3 days ago
United
Thu, 18 Dec - Sun, 21 Dec
RDU
Raleigh
IAD
Washington
S$441 Return, found 2 days ago
S$441
Return
found 2 days ago
Select United flight, departing Thu, 18 Dec from Raleigh to Washington, returning Sun, 21 Dec, priced at S$441 found 2 days ago
United
Thu, 18 Dec - Sun, 21 Dec
RDU
Raleigh
IAD
Washington
S$506 Return, found 2 days ago
S$506
Return
found 2 days ago
Select United flight, departing Thu, 18 Dec from Raleigh to Washington, returning Sun, 21 Dec, priced at S$506 found 2 days ago
United
Thu, 18 Dec - Sun, 21 Dec
RDU
Raleigh
IAD
Washington
S$567 Return, found 2 days ago
S$567
Return
found 2 days ago
Select United flight, departing Thu, 18 Dec from Raleigh to Washington, returning Sun, 21 Dec, priced at S$567 found 2 days ago
United
Thu, 18 Dec - Sun, 21 Dec
RDU
Raleigh
IAD
Washington
S$569 Return, found 2 days ago
S$569
Return
found 2 days ago
Select United flight, departing Thu, 18 Dec from Raleigh to Washington, returning Sun, 21 Dec, priced at S$569 found 2 days ago

Frequently asked questions

How much is a United Airlines flight from Raleigh - Durham Intl. Airport (RDU) to Washington Dulles Intl. Airport (IAD)?
Set the "Price (lowest to highest)" filter on Expedia to find cheap United Airlines return flights from S$377 from RDU to IAD. Affordable one-way options from S$168 are available as well.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from RDU to IAD with United Airlines?
United Airlines flights to Washington are usually more affordable in the off-peak months of January and February. Whether you're searching for a one-way or a return ticket, you could land a better deal then.
Does United Airlines fly nonstop from Raleigh - Durham Intl. Airport (RDU) to Washington Dulles Intl. Airport (IAD)?
United Airlines offers direct flights from Raleigh - Durham Intl. Airport (RDU) to Washington Dulles Intl. Airport (IAD), with 28 departures each week. Simply use the "Nonstop" and "Airline" filters while searching on Expedia to find all direct United Airlines flights to IAD.
How long does it take to fly from RDU to IAD with United Airlines?
From takeoff to arrival, a nonstop United Airlines flight from Raleigh - Durham Intl. Airport (RDU) to Washington Dulles Intl. Airport (IAD) takes around 1h 14m.
Which day of the week has the most United Airlines flights from Raleigh - Durham Intl. Airport (RDU) to Washington Dulles Intl. Airport (IAD)?
United Airlines has the most flights from Raleigh - Durham Intl. Airport (RDU) to Washington Dulles Intl. Airport (IAD) on Monday. With up to 4 daily departures, you'll get the most choice and flexibility on this day.
What airports does United Airlines fly into in Washington?
Washington Dulles Intl. Airport (IAD) is the main Washington hub for United Airlines flights from Raleigh - Durham Intl. Airport (RDU). Ronald Reagan Washington National Airport (DCA) and Baltimore Washington Intl. Thurgood Marshall Airport (BWI) are other options. When planning your getaway through Expedia, check the "All Airports" option for your destination to see everything that's available.
What type of plane does United Airlines fly from Raleigh - Durham Intl. Airport (RDU) to Washington Dulles Intl. Airport (IAD)?
For the Raleigh - Durham Intl. Airport (RDU) to Washington Dulles Intl. Airport (IAD) route, United Airlines typically uses Embraer 175 and Boeing 737-700 planes. Keep in mind that last-minute changes can occur for operational purposes, so your flight may be on a different aircraft.
Can I change or cancel my United Airlines flight from Raleigh - Durham Intl. Airport (RDU) to Washington Dulles Intl. Airport (IAD)?
It's generally possible to cancel or change your flight, although additional fees may apply if you booked over 24 hours ago. Want to keep your options open? Make use of our "No cancel fee" and "Changes included" filters to find flights that won't charge extra if you have to alter your plans. To make modifications, visit "Trips," select your flight and click on "Manage Booking" for further information.

Travel information

Origin airport
Raleigh - Durham Intl.
Destination airport
Washington Dulles Intl.
Distance
359 km
Average flight time
1 hour 11 mins

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