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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 13 2015 Return: Wed Jan 14 2015 Trip spans 2 days
United
United
CHS
9:37a
IAD
11:10a
1h 33m
nonstop
IAD
7:17a
CHS
9:02a
1h 45m
nonstop
Depart: Sat Jan 31 2015 Return: Wed Feb 4 2015 Trip spans 5 days
Frontier
Frontier
ORD
7:50a
IAD
9:40a
1h 50m
nonstop
IAD
1:55a
ORD
4:00a
2h 05m
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: Wed Jan 7 2015 Return: Thu Jan 8 2015 Trip spans 2 days
United
United
BDL
2:26p
IAD
3:56p
1h 30m
nonstop
IAD
7:32a
BDL
8:50a
1h 18m
nonstop
Depart: Thu Jan 8 2015 Return: Sun Jan 25 2015 Trip spans 18 days
Frontier
Frontier
MIA
6:50a
IAD
9:20a
2h 30m
nonstop
IAD
3:20a
MIA
6:05a
2h 45m
nonstop
Depart: Mon Feb 2 2015 Return: Wed Feb 4 2015 Trip spans 3 days
Virgin America
Virgin America
DAL
3:00a
IAD
12:40p
9h 40m
1 stop
IAD
4:00a
DAL
1:25p
9h 25m
1 stop
Depart: Sun Feb 8 2015 Return: Wed Feb 11 2015 Trip spans 4 days
United
United
BOS
4:35a
IAD
6:21a
1h 46m
nonstop
IAD
5:05p
BOS
6:38p
1h 33m
nonstop
Depart: Tue Feb 24 2015 Return: Wed Feb 25 2015 Trip spans 2 days
JetBlue Airways
JetBlue Airways
JFK
3:01a
IAD
4:20a
1h 19m
nonstop
IAD
3:47a
JFK
4:59a
1h 12m
nonstop
Depart: Mon Jan 5 2015 Return: Thu Jan 8 2015 Trip spans 4 days
Multiple Airlines
Multiple Airlines
CLT
9:50a
IAD
11:10a
1h 20m
nonstop
IAD
8:40a
CLT
10:03a
1h 23m
nonstop
Depart: Mon Jan 19 2015 Return: Wed Jan 21 2015 Trip spans 3 days
American Airlines
American Airlines
DFW
3:20p
IAD
5:53p
2h 33m
nonstop
IAD
2:28p
DFW
6:05p
3h 37m
nonstop
Depart: Sat Dec 20 2014 Return: Mon Jan 5 2015 Trip spans 17 days
Frontier
Frontier
PBI
3:40p
IAD
6:00p
2h 20m
nonstop
IAD
11:50a
PBI
2:30p
2h 40m
nonstop
Depart: Fri Dec 26 2014 Return: Thu Jan 1 2015 Trip spans 7 days
United
United
TPA
4:10a
IAD
6:25a
2h 15m
nonstop
IAD
12:52p
TPA
3:17p
2h 25m
nonstop
Depart: Tue Apr 14 2015 Return: Mon Apr 20 2015 Trip spans 7 days
Frontier
Frontier
FLL
3:55p
IAD
6:20p
2h 25m
nonstop
IAD
12:25p
FLL
3:15p
2h 50m
nonstop
Depart: Mon Jun 1 2015 Return: Wed Jun 3 2015 Trip spans 3 days
United
United
IND
3:30p
IAD
5:00p
1h 30m
nonstop
IAD
8:30a
IND
10:11a
1h 41m
nonstop
Depart: Thu Mar 26 2015 Return: Mon Mar 30 2015 Trip spans 5 days
Frontier
Frontier
ATL
10:05a
IAD
11:50a
1h 45m
nonstop
IAD
2:15p
ATL
4:10p
1h 55m
nonstop
Depart: Sat May 9 2015 Return: Sun May 10 2015 Trip spans 2 days
United
United
CMH
3:10p
IAD
4:17p
1h 07m
nonstop
IAD
8:45a
CMH
10:03a
1h 18m
nonstop
Depart: Tue May 26 2015 Return: Tue Jun 2 2015 Trip spans 8 days
United
United
DAY
6:15a
IAD
7:37a
1h 22m
nonstop
IAD
4:20a
DAY
5:49a
1h 29m
nonstop
Depart: Sat Jun 27 2015 Return: Sat Jul 4 2015 Trip spans 8 days
United
United
RDU
3:25p
IAD
4:29p
1h 04m
nonstop
IAD
1:45p
RDU
2:58p
1h 13m
nonstop
Depart: Tue May 19 2015 Return: Sun May 24 2015 Trip spans 6 days
Delta
Delta
DEN
6:45a
IAD
12:51p
6h 06m
1 stop
IAD
3:00a
DEN
11:49a
8h 49m
1 stop
Depart: Mon May 18 2015 Return: Fri May 22 2015 Trip spans 5 days
Delta
Delta
MDW
5:15a
IAD
11:59a
6h 44m
1 stop
IAD
2:10a
MDW
5:45a
3h 35m
1 stop
Change your search
Airports
Origin

Charleston
$77
Charlotte
$124
Raleigh
$249
Chicago
only $78
only $302
Fort Lauderdale
$165
Cincinnati
$95
Dayton
$207
Miami
$112
New York City
$118
West Palm Beach
$145
Atlanta
$178
Columbus
$187
Hartford
$97
Denver
$292
Dallas
only $127
only $114
Tampa
$153
Boston
$118
Indianapolis
$167
Destination

Washington
$77