Raleigh to Washington RDU → IAD
Raleigh-Durham International Airport (RDU) → Washington Dulles International Airport (IAD)
The cheapest return found recently is $287 with Frontier Airlines, 24 Nov – 25 Nov, found yesterday. The cheapest one-way found recently is $68 with Frontier Airlines, 12 Dec, found 2 days ago.
Return
Not enough comparable prices yet for a usual return price.
Cheapest return found recently
$287
24 Nov – 25 Nov · Frontier Airlines
Raleigh-Durham International Airport (RDU) → Washington Dulles International Airport (IAD)
Leaves 12:28 p.m. · Return leaves 9:35 p.m. · 19 h 34 min of travel, both ways together
out 1 stop, back 1 stop
found yesterday
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$287 24 Nov – 25 Novfound yesterdaySee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 18 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $145 to $380.
18 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Not enough comparable prices yet: we hold return fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other 1-night return fares leaving within 3 days of 24 Nov to compare.
Every date we hold
1 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 24 Nov – 25 Nov | $287 | Frontier Airlines | Raleigh-Durham International Airport (RDU) → Washington Dulles International Airport (IAD) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
Airlines on the cheapest dates: Frontier Airlines.
One-way
The cheapest one-way fare on each of 3 departure dates is usually $78 to $110.
Cheapest one-way found recently
$68
12 Dec · Frontier Airlines
Raleigh-Durham International Airport (RDU) → Washington Dulles International Airport (IAD)
Leaves 7:04 a.m. · 7 h 45 min trip
1 stop
found 2 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$68 12 Decfound 2 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 22 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $68 to $131.
At $68, the cheapest one-way found recently is at the low end of that range.
22 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 3 departure dates from 27 Oct to 12 Dec, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold one-way fares on 1 other departure date within 3 days of 12 Dec, and it is not cheaper.
Every date we hold
3 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 27 Oct | $133 | Frontier Airlines | Raleigh-Durham International Airport (RDU) → Washington Dulles International Airport (IAD) | 1 stop | found 2 days ago | Open this trip |
| 10 Dec | $87 | Frontier Airlines | Raleigh-Durham International Airport (RDU) → Washington Dulles International Airport (IAD) | 1 stop | found 2 days ago | Open this trip |
| 12 Dec | $68 | Frontier Airlines | Raleigh-Durham International Airport (RDU) → Washington Dulles International Airport (IAD) | 1 stop | found 2 days ago | Open this trip |
Which month looks cheapest?
December 2026 is the cheapest month — from $68.
Airlines on the cheapest dates: Frontier Airlines.
Premium cabin fares from Raleigh to Washington
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 24 Nov – 25 Nov in another cabin: Premium economy · Business · First
Today's prices for 12 Dec in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Raleigh to Washington?
Return
Not enough history yet: in 18 days of return prices, 24 Sept to 18 Oct, fewer than 3 booking ranges had prices on 7 days or more.
One-way
Fares 30 to 59 days before departure were typically 47% lower than 0 to 6 days before departure.
From the cheapest one-way each day between 24 Sept and 18 Oct (22 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $130 | $119 | +88% | 15 |
| 7–13 days | $132 | $119 | +91% | 18 |
| 14–29 days | $131 | $68 | +90% | 7 |
| 30–59 days | $69 | $68 | Cheapest seen | 12 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Raleigh → Baltimore
57 km from Washington
$143
$144 less than flying to Washington
16 Dec – 17 Dec · RDU → BWI · out 1 stop, back 1 stop
found yesterday
Greenville → Washington
114 km from Raleigh
$695
$408 more than flying from Raleigh
24 Nov – 29 Nov · PGV → IAD · out 1 stop, back 1 stop
found 4 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 24 Nov – 25 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work