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Find Flight Deals from United States to Washington Dulles Intl

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights to Washington Dulles Intl

(Round-trip)
Depart: Tue Feb 24 2015 Return: Wed Mar 4 2015 Trip spans 9 days
United
United
CHS
2:29p
IAD
3:56p
1h 27m
nonstop
IAD
5:05p
CHS
6:48p
1h 43m
nonstop
Depart: Thu Feb 12 2015 Return: Sun Feb 22 2015 Trip spans 11 days
Frontier
Frontier
MIA
6:50a
IAD
9:20a
2h 30m
nonstop
IAD
3:20a
MIA
6:05a
2h 45m
nonstop
Depart: Fri Feb 20 2015 Return: Sun Feb 22 2015 Trip spans 3 days
Frontier
Frontier
PBI
10:15a
IAD
12:35p
2h 20m
nonstop
IAD
10:00a
PBI
12:40p
2h 40m
nonstop
Depart: Sat May 2 2015 Return: Wed May 6 2015 Trip spans 5 days
Frontier
Frontier
DTW
10:55a
IAD
12:25p
1h 30m
nonstop
IAD
9:15a
DTW
10:55a
1h 40m
nonstop
Depart: Wed Apr 8 2015 Return: Wed Apr 29 2015 Trip spans 22 days
Frontier
Frontier
ATL
10:30a
IAD
12:15p
1h 45m
nonstop
IAD
8:40a
ATL
10:35a
1h 55m
nonstop
Depart: Wed Feb 11 2015 Return: Wed Feb 18 2015 Trip spans 8 days
Frontier
Frontier
ORD
7:50a
IAD
9:40a
1h 50m
nonstop
IAD
1:55a
ORD
4:00a
2h 05m
nonstop
Depart: Tue May 19 2015 Return: Sun May 31 2015 Trip spans 13 days
Frontier
Frontier
CVG
11:20a
IAD
12:45p
1h 25m
nonstop
IAD
8:45a
CVG
10:20a
1h 35m
nonstop
Depart: Wed Mar 18 2015 Return: Tue Mar 24 2015 Trip spans 7 days
United
United
BDL
10:22a
IAD
11:57a
1h 35m
nonstop
IAD
8:31a
BDL
9:50a
1h 19m
nonstop
Depart: Mon Feb 2 2015 Return: Tue Feb 3 2015 Trip spans 2 days
Frontier
Frontier
FLL
2:50p
IAD
5:15p
2h 25m
nonstop
IAD
11:50a
FLL
2:40p
2h 50m
nonstop
Depart: Sun Feb 22 2015 Return: Tue Feb 24 2015 Trip spans 3 days
United
United
EWR
5:24a
IAD
6:44a
1h 20m
nonstop
IAD
3:16a
EWR
4:30a
1h 14m
nonstop
Depart: Thu Apr 16 2015 Return: Tue Apr 21 2015 Trip spans 6 days
United
United
JAX
3:42p
IAD
5:30p
1h 48m
nonstop
IAD
1:06p
JAX
3:07p
2h 01m
nonstop
Depart: Sat Mar 21 2015 Return: Tue Mar 24 2015 Trip spans 4 days
United
United
BOS
1:40a
IAD
3:25a
1h 45m
nonstop
IAD
1:30p
BOS
3:04p
1h 34m
nonstop
Depart: Wed Feb 4 2015 Return: Sun Feb 8 2015 Trip spans 5 days
Frontier
Frontier
MCO
5:20a
IAD
7:25a
2h 05m
nonstop
IAD
2:45a
MCO
5:10a
2h 25m
nonstop
Depart: Sun May 3 2015 Return: Sat May 9 2015 Trip spans 7 days
Frontier
Frontier
MSP
4:55a
IAD
7:15a
2h 20m
nonstop
IAD
2:15a
MSP
5:00a
2h 45m
nonstop
Depart: Wed Jul 1 2015 Return: Tue Jul 14 2015 Trip spans 14 days
JetBlue Airways
JetBlue Airways
JFK
3:41a
IAD
4:53a
1h 12m
nonstop
IAD
5:29a
JFK
6:51a
1h 22m
nonstop
Depart: Tue May 12 2015 Return: Wed May 13 2015 Trip spans 2 days
United
United
TPA
2:40p
IAD
4:53p
2h 13m
nonstop
IAD
8:40a
TPA
10:45a
2h 05m
nonstop
Depart: Mon Feb 16 2015 Return: Mon Feb 23 2015 Trip spans 8 days
United
United
DAY
9:32a
IAD
10:55a
1h 23m
nonstop
IAD
7:30a
DAY
9:02a
1h 32m
nonstop
Depart: Mon May 11 2015 Return: Thu May 14 2015 Trip spans 4 days
United
United
DFW
12:55p
IAD
4:05p
3h 10m
nonstop
IAD
8:45a
DFW
12:00p
3h 15m
nonstop
Depart: Mon Aug 3 2015 Return: Wed Aug 5 2015 Trip spans 3 days
United
United
CLT
2:00a
IAD
3:20a
1h 20m
nonstop
IAD
6:00p
CLT
7:24p
1h 24m
nonstop
Depart: Sun Aug 9 2015 Return: Sun Aug 16 2015 Trip spans 8 days
JetBlue Airways
JetBlue Airways
PWM
1:45a
IAD
4:53a
3h 08m
1 stop
IAD
5:29a
PWM
8:53a
3h 24m
1 stop
Change your search
Airports
Origin

New York
$150
Charleston
$77
Detroit
$95
Charlotte
$221
Portland
$242
Chicago
$105
Fort Lauderdale
$122
Cincinnati
$105
Dayton
$163
Miami
$78
West Palm Beach
$78
Minneapolis
$145
Atlanta
$99
Orlando
$145
Hartford
$107
Newark
$127
Dallas
$177
Tampa
$153
Jacksonville
$137
Boston
$141
Destination

Washington
$77