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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 Jan 20 2015 Return: Tue Jan 27 2015 Trip spans 8 days
United
United
CHS
2:16p
IAD
3:42p
1h 26m
nonstop
IAD
12:01p
CHS
1:41p
1h 40m
nonstop
Depart: Fri Jan 2 2015 Return: Mon Jan 5 2015 Trip spans 4 days
Frontier
Frontier
CVG
3:30a
IAD
4:55a
1h 25m
nonstop
IAD
1:15a
CVG
2:50a
1h 35m
nonstop
Depart: Mon May 11 2015 Return: Fri May 15 2015 Trip spans 5 days
Frontier
Frontier
DTW
11:25a
IAD
12:55p
1h 30m
nonstop
IAD
9:15a
DTW
10:55a
1h 40m
nonstop
Depart: Fri Dec 26 2014 Return: Sun Dec 28 2014 Trip spans 3 days
Frontier
Frontier
CLT
9:50a
IAD
11:10a
1h 20m
nonstop
IAD
2:20p
CLT
3:45p
1h 25m
nonstop
Depart: Wed Jan 7 2015 Return: Fri Jan 9 2015 Trip spans 3 days
Frontier
Frontier
ORD
7:50a
IAD
9:40a
1h 50m
nonstop
IAD
3:20a
ORD
5:25a
2h 05m
nonstop
Depart: Mon Jan 12 2015 Return: Thu Jan 15 2015 Trip spans 4 days
United
United
BDL
12:55a
IAD
2:23a
1h 28m
nonstop
IAD
3:20a
BDL
4:40a
1h 20m
nonstop
Depart: Mon Jan 26 2015 Return: Thu Jan 29 2015 Trip spans 4 days
Virgin America
Virgin America
DAL
2:50a
IAD
12:40p
9h 50m
1 stop
IAD
4:00a
DAL
1:25p
9h 25m
1 stop
Depart: Thu Jan 22 2015 Return: Sun Jan 25 2015 Trip spans 4 days
United
United
BOS
4:35a
IAD
6:21a
1h 46m
nonstop
IAD
3:35a
BOS
5:09a
1h 34m
nonstop
Depart: Wed Feb 18 2015 Return: Tue Feb 24 2015 Trip spans 7 days
JetBlue Airways
JetBlue Airways
JFK
12:15p
IAD
1:34p
1h 19m
nonstop
IAD
1:45a
JFK
2:58a
1h 13m
nonstop
Depart: Wed Feb 25 2015 Return: Sat Feb 28 2015 Trip spans 4 days
Frontier
Frontier
TPA
4:10a
IAD
6:20a
2h 10m
nonstop
IAD
1:00a
TPA
3:30a
2h 30m
nonstop
Depart: Thu Feb 26 2015 Return: Sun Mar 1 2015 Trip spans 4 days
Frontier
Frontier
FLL
2:50p
IAD
5:15p
2h 25m
nonstop
IAD
11:20a
FLL
2:10p
2h 50m
nonstop
Depart: Tue Mar 3 2015 Return: Wed Mar 4 2015 Trip spans 2 days
Frontier
Frontier
MCO
5:50a
IAD
7:55a
2h 05m
nonstop
IAD
10:15a
MCO
12:40p
2h 25m
nonstop
Depart: Sun Jan 4 2015 Return: Tue Jan 6 2015 Trip spans 3 days
Frontier
Frontier
STL
9:25a
IAD
11:25a
2h 00m
nonstop
IAD
1:05p
STL
3:25p
2h 20m
nonstop
Depart: Mon Jan 5 2015 Return: Wed Jan 7 2015 Trip spans 3 days
United
United
IND
2:41p
IAD
4:14p
1h 33m
nonstop
IAD
4:52p
IND
6:40p
1h 48m
nonstop
Depart: Sat Dec 27 2014 Return: Sat Jan 3 2015 Trip spans 8 days
Frontier
Frontier
PBI
3:40p
IAD
6:00p
2h 20m
nonstop
IAD
12:20p
PBI
3:00p
2h 40m
nonstop
Depart: Tue Dec 30 2014 Return: Tue Jan 6 2015 Trip spans 8 days
Frontier
Frontier
MIA
6:50a
IAD
9:20a
2h 30m
nonstop
IAD
3:20a
MIA
6:05a
2h 45m
nonstop
Depart: Sun Feb 22 2015 Return: Fri Feb 27 2015 Trip spans 6 days
Frontier
Frontier
ATL
9:00a
IAD
10:45a
1h 45m
nonstop
IAD
1:15p
ATL
3:10p
1h 55m
nonstop
Depart: Tue Apr 28 2015 Return: Sat May 2 2015 Trip spans 5 days
United
United
MSY
3:53a
IAD
6:26a
2h 33m
nonstop
IAD
4:30a
MSY
7:10a
2h 40m
nonstop
Depart: Sun Mar 15 2015 Return: Fri Mar 20 2015 Trip spans 6 days
United
United
JAX
5:15a
IAD
7:09a
1h 54m
nonstop
IAD
8:32a
JAX
10:39a
2h 07m
nonstop
Depart: Sun May 24 2015 Return: Sat Jun 6 2015 Trip spans 14 days
Multiple Airlines
Multiple Airlines
RDU
10:17a
IAD
11:26a
1h 09m
nonstop
IAD
12:15p
RDU
5:20p
5h 05m
1 stop
Change your search
Airports
Origin

Charleston
$77
Detroit
$95
Charlotte
$103
Raleigh
$226
Chicago
$105
Fort Lauderdale
$145
Cincinnati
$85
St Louis
$155
Miami
$165
New York City
$118
West Palm Beach
$165
Atlanta
$178
Orlando
$145
New Orleans
$197
Hartford
$107
Tampa
$138
Dallas
$113
Jacksonville
$207
Boston
$118
Indianapolis
$162
Destination

Washington
$77