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

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

Book cheap flights from Washington to Ontario

(Round-trip)
Depart: Tue Apr 21 2015 Return: Tue May 5 2015 Trip spans 15 days
US Airways
US Airways
DCA
2:30p
ONT
10:20p
7h 50m
1 stop
ONT
8:35a
DCA
2:59p
6h 24m
1 stop
Depart: Sat Apr 25 2015 Return: Tue May 5 2015 Trip spans 11 days
American Airlines
American Airlines
DCA
1:30a
ONT
9:07a
7h 37m
1 stop
ONT
8:35a
DCA
2:59p
6h 24m
1 stop
Depart: Wed Apr 22 2015 Return: Tue May 5 2015 Trip spans 14 days
US Airways
US Airways
DCA
2:30p
ONT
10:20p
7h 50m
1 stop
ONT
8:35a
DCA
2:59p
6h 24m
1 stop
Depart: Tue Apr 28 2015 Return: Tue May 5 2015 Trip spans 8 days
American Airlines
American Airlines
DCA
1:30a
ONT
9:07a
7h 37m
1 stop
ONT
8:35a
DCA
2:59p
6h 24m
1 stop
Depart: Wed Apr 29 2015 Return: Tue May 5 2015 Trip spans 7 days
American Airlines
American Airlines
DCA
1:30a
ONT
9:07a
7h 37m
1 stop
ONT
8:35a
DCA
2:59p
6h 24m
1 stop
Depart: Sat May 2 2015 Return: Tue May 5 2015 Trip spans 4 days
US Airways
US Airways
DCA
12:52p
ONT
10:20p
9h 28m
1 stop
ONT
8:35a
DCA
2:59p
6h 24m
1 stop
Depart: Tue May 5 2015 Return: Wed May 6 2015 Trip spans 2 days
US Airways
US Airways
DCA
1:15p
ONT
8:06p
6h 51m
1 stop
ONT
8:35a
DCA
2:59p
6h 24m
1 stop
Depart: Wed May 6 2015 Return: Sat May 9 2015 Trip spans 4 days
American Airlines
American Airlines
DCA
1:30a
ONT
9:07a
7h 37m
1 stop
ONT
2:30a
DCA
9:08a
6h 38m
1 stop
Depart: Sat May 9 2015 Return: Tue May 19 2015 Trip spans 11 days
US Airways
US Airways
DCA
1:10p
ONT
8:06p
6h 56m
1 stop
ONT
8:35a
DCA
2:59p
6h 24m
1 stop
Depart: Tue May 12 2015 Return: Wed May 13 2015 Trip spans 2 days
US Airways
US Airways
DCA
1:10p
ONT
8:06p
6h 56m
1 stop
ONT
8:35a
DCA
2:59p
6h 24m
1 stop
Depart: Wed May 27 2015 Return: Tue Jun 2 2015 Trip spans 7 days
American Airlines
American Airlines
DCA
2:30p
ONT
10:20p
7h 50m
1 stop
ONT
8:35a
DCA
2:59p
6h 24m
1 stop
Depart: Sat May 30 2015 Return: Tue Jun 2 2015 Trip spans 4 days
American Airlines
American Airlines
DCA
1:30a
ONT
9:05a
7h 35m
1 stop
ONT
8:35a
DCA
2:59p
6h 24m
1 stop
Depart: Tue Jun 2 2015 Return: Wed Jun 3 2015 Trip spans 2 days
US Airways
US Airways
DCA
1:10p
ONT
8:06p
6h 56m
1 stop
ONT
8:35a
DCA
2:59p
6h 24m
1 stop
Depart: Thu Apr 23 2015 Return: Tue May 5 2015 Trip spans 13 days
American Airlines
American Airlines
DCA
1:30a
ONT
9:07a
7h 37m
1 stop
ONT
8:35a
DCA
2:59p
6h 24m
1 stop
Depart: Mon Apr 27 2015 Return: Wed May 6 2015 Trip spans 10 days
American Airlines
American Airlines
DCA
1:15p
ONT
8:06p
6h 51m
1 stop
ONT
8:35a
DCA
2:59p
6h 24m
1 stop
Depart: Wed Apr 15 2015 Return: Sat Apr 25 2015 Trip spans 11 days
United
United
IAD
7:26a
ONT
5:47p
10h 21m
1 stop
ONT
2:00a
IAD
8:53a
6h 53m
1 stop
Depart: Sat May 16 2015 Return: Wed May 20 2015 Trip spans 5 days
United
United
DCA
1:45a
ONT
10:30a
8h 45m
1 stop
ONT
2:55a
DCA
9:59a
7h 04m
1 stop
Depart: Thu May 14 2015 Return: Sat May 23 2015 Trip spans 10 days
American Airlines
American Airlines
IAD
2:10p
ONT
10:20p
8h 10m
1 stop
ONT
10:20a
IAD
5:28p
7h 08m
1 stop
Depart: Thu Apr 30 2015 Return: Sat May 2 2015 Trip spans 3 days
US Airways
US Airways
IAD
1:30a
ONT
9:07a
7h 37m
1 stop
ONT
10:20a
IAD
5:28p
7h 08m
1 stop
Depart: Sun Oct 18 2015 Return: Tue Oct 20 2015 Trip spans 3 days
Delta
Delta
DCA
12:35p
ONT
9:26p
8h 51m
1 stop
ONT
2:05a
DCA
8:49a
6h 44m
1 stop
Airports
Origin

Washington
only $377
only $373
Destination

Ontario
$373