Find Deals on Flights from Washington to Ontario (WAS - ONT)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Washington to Ontario

(Round-trip)
Depart: Tue Mar 1 2016 Return: Wed Mar 2 2016 Trip spans 2 days
American Airlines
American Airlines
DCA
10:40a
ONT
9:07p
10h 27m
1 stop
ONT
7:35a
DCA
1:57p
6h 22m
1 stop
Depart: Wed Mar 2 2016 Return: Sat Mar 5 2016 Trip spans 4 days
American Airlines
American Airlines
IAD
1:17p
ONT
9:07p
7h 50m
1 stop
ONT
12:50a
IAD
9:37a
8h 47m
1 stop
Depart: Sat Mar 5 2016 Return: Tue Mar 8 2016 Trip spans 4 days
United
United
IAD
12:15p
ONT
9:13p
8h 58m
1 stop
ONT
3:26p
IAD
11:29p
8h 03m
1 stop
Depart: Tue Mar 8 2016 Return: Wed Mar 9 2016 Trip spans 2 days
United
United
DCA
11:15a
ONT
9:27p
10h 12m
1 stop
ONT
3:39a
DCA
1:59p
10h 20m
1 stop
Depart: Mon Mar 7 2016 Return: Tue Mar 8 2016 Trip spans 2 days
United
United
IAD
1:37a
ONT
10:19a
8h 42m
1 stop
ONT
7:49a
IAD
5:00p
9h 11m
1 stop
Depart: Sun Mar 6 2016 Return: Thu Mar 10 2016 Trip spans 5 days
United
United
IAD
3:15a
ONT
2:25p
11h 10m
1 stop
ONT
3:39a
IAD
11:00a
7h 21m
1 stop
Depart: Wed Mar 9 2016 Return: Thu Mar 10 2016 Trip spans 2 days
United
United
IAD
12:40p
ONT
9:55p
9h 15m
1 stop
ONT
1:00a
IAD
10:03a
9h 03m
1 stop
Depart: Wed Feb 24 2016 Return: Wed Mar 2 2016 Trip spans 8 days
American Airlines
American Airlines
DCA
7:10a
ONT
4:07p
8h 57m
1 stop
ONT
7:35a
DCA
1:57p
6h 22m
1 stop
Depart: Sat Feb 27 2016 Return: Tue Mar 1 2016 Trip spans 4 days
American Airlines
American Airlines
DCA
2:05a
ONT
9:34a
7h 29m
1 stop
ONT
7:35a
DCA
1:57p
6h 22m
1 stop
Depart: Mon Feb 29 2016 Return: Tue Mar 1 2016 Trip spans 2 days
American Airlines
American Airlines
DCA
12:00p
ONT
7:27p
7h 27m
1 stop
ONT
7:35a
DCA
1:57p
6h 22m
1 stop
Depart: Tue Apr 5 2016 Return: Wed Apr 6 2016 Trip spans 2 days
American Airlines
American Airlines
DCA
1:10p
ONT
8:34p
7h 24m
1 stop
ONT
8:25a
DCA
2:59p
6h 34m
1 stop
Depart: Wed Apr 6 2016 Return: Tue Apr 12 2016 Trip spans 7 days
American Airlines
American Airlines
DCA
3:00a
ONT
10:33a
7h 33m
1 stop
ONT
8:25a
DCA
2:59p
6h 34m
1 stop
Depart: Thu Apr 7 2016 Return: Tue Apr 12 2016 Trip spans 6 days
American Airlines
American Airlines
DCA
1:38a
ONT
9:16a
7h 38m
1 stop
ONT
8:25a
DCA
2:59p
6h 34m
1 stop
Depart: Sat Apr 9 2016 Return: Tue Apr 12 2016 Trip spans 4 days
American Airlines
American Airlines
DCA
3:00a
ONT
10:33a
7h 33m
1 stop
ONT
8:25a
DCA
2:59p
6h 34m
1 stop
Depart: Sun Apr 10 2016 Return: Tue Apr 12 2016 Trip spans 3 days
American Airlines
American Airlines
DCA
3:00a
ONT
10:33a
7h 33m
1 stop
ONT
8:25a
DCA
2:59p
6h 34m
1 stop
Depart: Mon Apr 11 2016 Return: Tue Apr 12 2016 Trip spans 2 days
American Airlines
American Airlines
DCA
1:38a
ONT
9:16a
7h 38m
1 stop
ONT
8:25a
DCA
2:59p
6h 34m
1 stop
Depart: Thu Mar 10 2016 Return: Sat Mar 19 2016 Trip spans 9 days
Delta
Delta
DCA
11:35a
ONT
8:44p
9h 09m
1 stop
ONT
2:00a
DCA
8:41a
6h 41m
1 stop
Depart: Mon Aug 15 2016 Return: Wed Aug 24 2016 Trip spans 10 days
Alaska Airlines
Alaska Airlines
IAD
2:50p
ONT
9:18a
18h 28m
1 stop
ONT
2:00a
IAD
10:45a
8h 45m
1 stop
Depart: Sun Aug 21 2016 Return: Sat Aug 27 2016 Trip spans 7 days
Alaska Airlines
Alaska Airlines
DCA
4:00a
ONT
10:13p
18h 13m
1 stop
ONT
2:00a
DCA
2:54p
12h 54m
1 stop
Depart: Sun Jun 26 2016 Return: Fri Jul 1 2016 Trip spans 6 days
$1555
Select
Delta
Delta
IAD
5:54a
ONT
2:52p
8h 58m
2 stops
ONT
6:20a
IAD
2:32p
8h 12m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Why aren’t prices accurate 100% of the time?
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Airports
Origin

Washington
only $291
only $287
Destination

Ontario
$287