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Find Flight Deals from Ontario to Washington (ONT - WAS)

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

Book cheap flights from Ontario to Washington

(Round-trip)
Depart: Sat Feb 14 2015 Return: Sat Feb 21 2015 Trip spans 8 days
US Airways
US Airways
ONT
1:30a
DCA
8:00a
6h 30m
1 stop
DCA
12:00p
ONT
7:11p
7h 11m
1 stop
Depart: Tue Feb 10 2015 Return: Sun Feb 15 2015 Trip spans 6 days
Delta
Delta
ONT
1:15a
DCA
7:44a
6h 29m
1 stop
DCA
11:30a
ONT
7:05p
7h 35m
1 stop
Depart: Tue Feb 24 2015 Return: Sat Feb 28 2015 Trip spans 5 days
United
United
ONT
6:35a
DCA
2:06p
7h 31m
1 stop
DCA
2:59a
ONT
1:20p
10h 21m
1 stop
Depart: Wed Apr 1 2015 Return: Wed Apr 15 2015 Trip spans 15 days
United
United
ONT
4:22p
IAD
12:19a
7h 57m
1 stop
IAD
8:35a
ONT
6:07p
9h 32m
1 stop
Depart: Tue Mar 31 2015 Return: Wed Apr 8 2015 Trip spans 9 days
American Airlines
American Airlines
ONT
10:20a
DCA
5:07p
6h 47m
1 stop
DCA
3:15a
ONT
12:38p
9h 23m
1 stop
Depart: Thu Apr 16 2015 Return: Tue Apr 21 2015 Trip spans 6 days
Multiple Airlines
Multiple Airlines
ONT
8:35a
DCA
2:59p
6h 24m
1 stop
DCA
4:45a
ONT
12:38p
7h 53m
1 stop
Depart: Wed May 13 2015 Return: Tue May 19 2015 Trip spans 7 days
American Airlines
American Airlines
ONT
8:59p
IAD
4:21a
7h 22m
1 stop
IAD
2:35p
ONT
10:08p
7h 33m
1 stop
Depart: Sun Mar 15 2015 Return: Wed Mar 18 2015 Trip spans 4 days
US Airways
US Airways
ONT
5:56p
IAD
6:01a
12h 05m
2 stops
IAD
1:20a
ONT
10:34a
9h 14m
2 stops
Depart: Thu Jun 4 2015 Return: Tue Jun 9 2015 Trip spans 6 days
Delta
Delta
ONT
2:20a
IAD
4:30p
14h 10m
2 stops
IAD
4:20a
ONT
2:54p
10h 34m
2 stops
Depart: Mon Jun 8 2015 Return: Sat Jun 13 2015 Trip spans 6 days
Multiple Airlines
Multiple Airlines
ONT
6:00a
IAD
4:25p
10h 25m
2 stops
IAD
4:30a
ONT
7:00p
14h 30m
2 stops
Depart: Wed Jul 15 2015 Return: Sat Jul 25 2015 Trip spans 11 days
Alaska Airlines
Alaska Airlines
ONT
3:50p
DCA
10:40a
18h 50m
1 stop
DCA
1:10p
ONT
7:53a
18h 43m
1 stop
Change your search
Airports
Origin

Ontario
$307
Destination

Washington
only $374
only $307