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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 14 2015 Return: Tue Apr 21 2015 Trip spans 8 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: Sat Apr 18 2015 Return: Tue Apr 28 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 15 2015 Return: Mon Apr 20 2015 Trip spans 6 days
United
United
IAD
1:45a
ONT
9:20a
7h 35m
1 stop
ONT
3:18p
IAD
11:43p
8h 25m
1 stop
Depart: Tue Mar 31 2015 Return: Tue Apr 14 2015 Trip spans 15 days
American Airlines
American Airlines
IAD
2:10p
ONT
10:22p
8h 12m
1 stop
ONT
10:20a
IAD
5:28p
7h 08m
1 stop
Depart: Thu Apr 9 2015 Return: Wed Apr 15 2015 Trip spans 7 days
United
United
DCA
1:49a
ONT
9:20a
7h 31m
1 stop
ONT
6:45a
DCA
3:13p
8h 28m
1 stop
Depart: Sat Mar 21 2015 Return: Tue Mar 31 2015 Trip spans 11 days
Multiple Airlines
Multiple Airlines
DCA
12:40p
ONT
9:30p
8h 50m
1 stop
ONT
8:35a
DCA
2:59p
6h 24m
1 stop
Depart: Fri Apr 3 2015 Return: Tue Apr 7 2015 Trip spans 5 days
US Airways
US Airways
IAD
2:10p
ONT
10:22p
8h 12m
1 stop
ONT
6:55a
IAD
5:28p
10h 33m
1 stop
Depart: Thu Sep 10 2015 Return: Sat Sep 19 2015 Trip spans 10 days
Alaska Airlines
Alaska Airlines
DCA
1:43a
ONT
3:20p
13h 37m
2 stops
ONT
6:30a
DCA
2:59p
8h 29m
1 stop
Depart: Sat Mar 28 2015 Return: Tue Mar 31 2015 Trip spans 4 days
Delta
Delta
DCA
12:40p
ONT
9:30p
8h 50m
1 stop
ONT
2:15a
DCA
8:50a
6h 35m
1 stop
Depart: Thu Sep 17 2015 Return: Sun Sep 20 2015 Trip spans 4 days
Multiple Airlines
Multiple Airlines
IAD
1:45a
ONT
9:55a
8h 10m
1 stop
ONT
2:00a
IAD
10:30a
8h 30m
1 stop
Airports
Origin

Washington
only $310
only $307
Destination

Ontario
$307