Find Cheap 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 Aug 22 2017 Return: Wed Aug 23 2017 Trip spans 2 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
ONT
8:21a
8h 21m
1 stop
ONT
12:00a
IAD
6:50a
6h 50m
1 stop
Depart: Wed Aug 23 2017 Return: Sat Aug 26 2017 Trip spans 4 days
United
United
DCA
12:00a
ONT
10:30a
10h 30m
1 stop
ONT
12:00a
DCA
7:18a
7h 18m
1 stop
Depart: Thu Sep 7 2017 Return: Sat Sep 9 2017 Trip spans 3 days
American Airlines
American Airlines
DCA
12:00a
ONT
7:43a
7h 43m
1 stop
ONT
12:00a
DCA
7:11a
7h 11m
1 stop
Depart: Mon Dec 18 2017 Return: Mon Dec 25 2017 Trip spans 8 days
Delta
Delta
IAD
12:00a
ONT
12:34p
12h 34m
2 stops
ONT
12:00a
IAD
9:48a
9h 48m
1 stop
Depart: Thu Aug 24 2017 Return: Sat Aug 26 2017 Trip spans 3 days
United
United
DCA
12:00a
ONT
10:30a
10h 30m
1 stop
ONT
12:00a
DCA
6:37a
6h 37m
1 stop
Depart: Wed Aug 30 2017 Return: Tue Sep 5 2017 Trip spans 7 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
ONT
7:45a
7h 45m
1 stop
ONT
12:00a
IAD
9:13a
9h 13m
1 stop
Depart: Sat Sep 9 2017 Return: Mon Sep 11 2017 Trip spans 3 days
American Airlines
American Airlines
DCA
12:00a
ONT
7:43a
7h 43m
1 stop
ONT
12:00a
DCA
8:39a
8h 39m
1 stop
Depart: Sat Aug 26 2017 Return: Mon Aug 28 2017 Trip spans 3 days
United
United
DCA
12:00a
ONT
10:30a
10h 30m
1 stop
ONT
12:00a
DCA
8:47a
8h 47m
1 stop
Depart: Wed Sep 6 2017 Return: Thu Sep 7 2017 Trip spans 2 days
Multiple Airlines
Multiple Airlines
DCA
12:00a
ONT
7:27a
7h 27m
1 stop
ONT
12:00a
DCA
7:45a
7h 45m
1 stop
Depart: Tue Sep 12 2017 Return: Mon Sep 18 2017 Trip spans 7 days
American Airlines
American Airlines
IAD
12:00a
ONT
7:05a
7h 05m
1 stop
ONT
12:00a
IAD
6:50a
6h 50m
1 stop
Depart: Thu Aug 31 2017 Return: Tue Sep 5 2017 Trip spans 6 days
United
United
IAD
12:00a
ONT
10:39a
10h 39m
1 stop
ONT
12:00a
IAD
8:38a
8h 38m
1 stop
Depart: Sat Sep 9 2017 Return: Mon Sep 11 2017 Trip spans 3 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
ONT
7:26a
7h 26m
1 stop
ONT
12:00a
IAD
7:16a
7h 16m
1 stop
Depart: Wed Sep 13 2017 Return: Mon Sep 18 2017 Trip spans 6 days
American Airlines
American Airlines
DCA
12:00a
ONT
7:33a
7h 33m
1 stop
ONT
12:00a
DCA
8:39a
8h 39m
1 stop
Depart: Sat Sep 2 2017 Return: Wed Sep 6 2017 Trip spans 5 days
United
United
DCA
12:00a
ONT
10:30a
10h 30m
1 stop
ONT
12:00a
DCA
6:23a
6h 23m
1 stop
Depart: Mon Sep 11 2017 Return: Tue Sep 12 2017 Trip spans 2 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
ONT
7:05a
7h 05m
1 stop
ONT
12:00a
IAD
8:26a
8h 26m
1 stop
Depart: Tue Sep 19 2017 Return: Wed Sep 27 2017 Trip spans 9 days
American Airlines
American Airlines
IAD
12:00a
ONT
7:05a
7h 05m
1 stop
ONT
12:00a
IAD
6:50a
6h 50m
1 stop
Depart: Mon Sep 11 2017 Return: Tue Sep 12 2017 Trip spans 2 days
United
United
DCA
12:00a
ONT
7:29a
7h 29m
1 stop
ONT
12:00a
DCA
7:45a
7h 45m
1 stop
Depart: Thu Sep 21 2017 Return: Tue Sep 26 2017 Trip spans 6 days
Multiple Airlines
Multiple Airlines
DCA
12:00a
ONT
7:43a
7h 43m
1 stop
ONT
12:00a
DCA
10:20a
10h 20m
1 stop
Depart: Thu Sep 21 2017 Return: Mon Sep 25 2017 Trip spans 5 days
American Airlines
American Airlines
DCA
12:00a
ONT
7:43a
7h 43m
1 stop
ONT
12:00a
DCA
6:50a
6h 50m
1 stop
Depart: Thu Sep 14 2017 Return: Sat Sep 16 2017 Trip spans 3 days
United
United
IAD
12:00a
ONT
8:05a
8h 05m
1 stop
ONT
12:00a
IAD
10:11a
10h 11m
1 stop
* 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 $340
only $340
Destination

Ontario
$340