RDU offers free Wi-Fi throughout the terminals. Connect to the 'RDU Free WiFi' network for seamless browsing before your flight.
Round-trip from | $177 (United Airlines) |
---|---|
One-way from | $79 (Trip.com) |
Popular in | February |
Cheapest in | July |
Average price | $269 |
Good round-trip deal | $524 or less |
Good one-way deal | $181 or less |
Fly from
Fly to
Route
Depart
Return
Price
RaleighWashington, D.C.
RDU - IAD
RDUIAD
Raleigh-Durham
Wed 7/9
3:10 pm-4:25 pm
Nonstop1h 15m
Washington, D.C. Dulles Intl
Thu 7/10
1:02 pm-2:13 pm
Nonstop1h 11m
RaleighWashington, D.C.
RDU - IAD
RDUIAD
Raleigh-Durham
Sun 9/14
6:10 am-4:13 pm
1 stop10h 03m
Washington, D.C. Dulles Intl
Thu 10/16
8:18 pm-5:59 pm
1 stop21h 41m
RaleighWashington, D.C.
RDU - IAD
RDUIAD
Raleigh-Durham
Sat 9/6
1:34 pm-6:49 pm
1 stop5h 15m
Washington, D.C. Dulles Intl
Tue 9/16
12:35 pm-5:01 pm
1 stop4h 26m
RaleighWashington, D.C.
RDU - IAD
RDUIAD
Raleigh-Durham
Fri 7/11
6:11 pm-11:43 am
1 stop17h 32m
Washington, D.C. Dulles Intl
Fri 7/18
4:46 pm-5:41 pm
2 stops24h 55m
RaleighWashington, D.C.
RDU - IAD
RDUIAD
Raleigh-Durham
Thu 6/26
6:18 pm-11:59 pm
1 stop5h 41m
Washington, D.C. Dulles Intl
Thu 7/3
6:55 am-10:23 am
1 stop3h 28m
RaleighWashington, D.C.
RDU - IAD
RDUIAD
Raleigh-Durham
Sun 9/21
7:10 pm-12:06 am
1 stop4h 56m
RaleighWashington, D.C.
RDU - IAD
RDUIAD
Raleigh-Durham
Tue 7/15
10:34 am-11:45 am
Nonstop1h 11m
RaleighWashington, D.C.
RDU - IAD
RDUIAD
Raleigh-Durham
Wed 8/27
6:34 pm-10:55 pm
1 stop4h 21m
RaleighWashington, D.C.
RDU - IAD
RDUIAD
Raleigh-Durham
Sat 11/22
8:44 pm-11:57 pm
1 stop3h 13m
RaleighWashington, D.C.
RDU - IAD
RDUIAD
Raleigh-Durham
Wed 8/20
10:41 am-10:44 am
2 stops24h 03m
Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from Raleigh to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, August is the cheapest month in which you can book a flight from Raleigh to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Raleigh to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s optimal to fly from Raleigh to Washington, D.C. Dulles Intl Airport in the morning. By choosing this option you can save up to 42% on the cost of your flight, compared to a flight in the afternoon.
Travelers seeking maximum savings on their Raleigh to Washington, D.C. Dulles Intl Airport flight should consider departing on Thursday mornings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from RDU to IAD are scheduled on a Thursday (21 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).
In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.
If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Kim,May 2025
PIH - SLC
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Kim,May 2025
PIH - SLC
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Kim,May 2025
PIH - SLC
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Kim,May 2025
PIH - SLC
Food
Overall
Comfort
Entertainment
Boarding
Crew
Reviews
Kim,May 2025
PIH - SLC
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$179 | Average$261 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$239 | Average$328 | FlexibilityNo cancel fee | On-timeN/A |