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Find Flight Deals from United States to Washington

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

Book cheap flights to Washington

(Round-trip)
Depart: Mon Jan 12 2015 Return: Mon Jan 26 2015 Trip spans 15 days
Frontier
Frontier
TPA
6:45a
IAD
8:55a
2h 10m
nonstop
IAD
3:35a
TPA
6:05a
2h 30m
nonstop
Depart: Wed Jan 28 2015 Return: Wed Feb 4 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: Thu Jan 8 2015 Return: Tue Jan 13 2015 Trip spans 6 days
Frontier
Frontier
ATL
9:20a
IAD
11:05a
1h 45m
nonstop
IAD
7:45a
ATL
9:35a
1h 50m
nonstop
Depart: Thu Dec 25 2014 Return: Tue Jan 6 2015 Trip spans 13 days
Frontier
Frontier
MIA
6:50a
IAD
9:20a
2h 30m
nonstop
IAD
3:20a
MIA
6:05a
2h 45m
nonstop
Depart: Thu Jan 29 2015 Return: Tue Feb 3 2015 Trip spans 6 days
Frontier
Frontier
MCO
5:20a
IAD
7:25a
2h 05m
nonstop
IAD
10:15a
MCO
12:40p
2h 25m
nonstop
Depart: Tue Jan 13 2015 Return: Sat Jan 17 2015 Trip spans 5 days
American Airlines
American Airlines
DFW
3:40a
IAD
6:16a
2h 36m
nonstop
IAD
2:28p
DFW
6:05p
3h 37m
nonstop
Depart: Tue Jan 20 2015 Return: Wed Jan 21 2015 Trip spans 2 days
American Airlines
American Airlines
JFK
11:00a
DCA
12:21p
1h 21m
nonstop
DCA
1:10p
JFK
2:23p
1h 13m
nonstop
Depart: Sat Jan 24 2015 Return: Sat Jan 31 2015 Trip spans 8 days
American Airlines
American Airlines
DFW
8:35a
DCA
11:16a
2h 41m
nonstop
DCA
2:34a
DFW
6:15a
3h 41m
nonstop
Depart: Tue Jan 6 2015 Return: Wed Jan 21 2015 Trip spans 16 days
JetBlue Airways
JetBlue Airways
JFK
12:50p
IAD
2:09p
1h 19m
nonstop
IAD
3:41a
JFK
4:53a
1h 12m
nonstop
Depart: Sun Jan 18 2015 Return: Thu Jan 22 2015 Trip spans 5 days
United
United
BOS
4:35a
IAD
6:21a
1h 46m
nonstop
IAD
7:15a
BOS
8:47a
1h 32m
nonstop
Depart: Wed Dec 24 2014 Return: Tue Jan 6 2015 Trip spans 14 days
JetBlue Airways
JetBlue Airways
TPA
2:35a
DCA
4:39a
2h 04m
nonstop
DCA
2:30p
TPA
4:57p
2h 27m
nonstop
Depart: Fri Jan 2 2015 Return: Mon Jan 5 2015 Trip spans 4 days
Frontier
Frontier
DTW
1:10p
IAD
2:40p
1h 30m
nonstop
IAD
5:35a
DTW
7:15a
1h 40m
nonstop
Depart: Mon Jan 5 2015 Return: Sat Jan 10 2015 Trip spans 6 days
US Airways
US Airways
BOS
4:00p
DCA
5:36p
1h 36m
nonstop
DCA
1:30a
BOS
2:49a
1h 19m
nonstop
Depart: Thu Apr 23 2015 Return: Mon Apr 27 2015 Trip spans 5 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
Delta
Delta
MCO
1:00p
DCA
6:00p
5h 00m
1 stop
DCA
6:00a
MCO
10:22a
4h 22m
1 stop
Depart: Sat May 30 2015 Return: Sat Jun 6 2015 Trip spans 8 days
JetBlue Airways
JetBlue Airways
FLL
4:25p
DCA
6:52p
2h 27m
nonstop
DCA
2:20a
FLL
4:51a
2h 31m
nonstop
Depart: Mon May 4 2015 Return: Wed May 6 2015 Trip spans 3 days
American Airlines
American Airlines
MIA
8:30a
DCA
11:09a
2h 39m
nonstop
DCA
2:00a
MIA
4:32a
2h 32m
nonstop
Depart: Sun Mar 22 2015 Return: Tue Mar 24 2015 Trip spans 3 days
United
United
EWR
10:37a
DCA
12:02p
1h 25m
nonstop
DCA
12:37p
EWR
2:10p
1h 33m
nonstop
Depart: Tue Jun 30 2015 Return: Tue Jul 7 2015 Trip spans 8 days
Delta
Delta
DEN
2:35a
DCA
10:56a
8h 21m
1 stop
DCA
3:30a
DEN
1:10p
9h 40m
1 stop
Depart: Mon Jun 29 2015 Return: Tue Jul 21 2015 Trip spans 23 days
Multiple Airlines
Multiple Airlines
IAH
2:05p
IAD
6:30p
4h 25m
1 stop
IAD
3:50p
IAH
8:42p
4h 52m
1 stop
Change your search
Airports
Origin

Detroit
$135
Chicago
$78
Fort Lauderdale
$145
Miami
$102
New York City
$117
Atlanta
$98
Orlando
$112
Newark
$234
Denver
$292
Dallas
$117
Tampa
$78
Houston
$344
Boston
$118
Destination

Washington
only $78
only $117