Find Deals on Flights from Washington Dulles Intl to Ontario (IAD - ONT)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youth
12-17
Child
2-11
Seat Infant
under 2
Lap Infant
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 Dulles Intl to Ontario

(Round-trip)
Depart: Sat Sep 5 2015 Return: Tue Sep 8 2015 Trip spans 4 days
United
United
IAD
5:08a
ONT
3:32p
10h 24m
1 stop
ONT
3:01p
IAD
11:41p
8h 40m
1 stop
Depart: Fri Aug 28 2015 Return: Tue Sep 8 2015 Trip spans 12 days
United
United
IAD
1:30p
ONT
11:29p
9h 59m
1 stop
ONT
2:00p
IAD
12:25a
10h 25m
1 stop
Depart: Wed Sep 2 2015 Return: Sun Sep 6 2015 Trip spans 5 days
United
United
IAD
4:20a
ONT
3:32p
11h 12m
1 stop
ONT
1:00a
IAD
8:28a
7h 28m
1 stop
Depart: Thu Sep 3 2015 Return: Sun Sep 6 2015 Trip spans 4 days
United
United
IAD
6:44a
ONT
4:27p
9h 43m
1 stop
ONT
2:00p
IAD
12:25a
10h 25m
1 stop
Depart: Fri Sep 4 2015 Return: Sun Sep 6 2015 Trip spans 3 days
United
United
IAD
1:30p
ONT
11:29p
9h 59m
1 stop
ONT
1:00a
IAD
8:28a
7h 28m
1 stop
Depart: Tue Sep 8 2015 Return: Thu Sep 10 2015 Trip spans 3 days
United
United
IAD
1:20p
ONT
11:29p
10h 09m
1 stop
ONT
2:00p
IAD
11:41p
9h 41m
1 stop
Depart: Tue Aug 18 2015 Return: Mon Aug 24 2015 Trip spans 7 days
United
United
IAD
1:30p
ONT
11:29p
9h 59m
1 stop
ONT
3:01p
IAD
12:25a
9h 24m
1 stop
Depart: Wed Aug 19 2015 Return: Mon Aug 24 2015 Trip spans 6 days
United
United
IAD
12:49p
ONT
11:29p
10h 40m
1 stop
ONT
8:44a
IAD
5:17p
8h 33m
1 stop
Depart: Thu Aug 20 2015 Return: Mon Aug 24 2015 Trip spans 5 days
United
United
IAD
12:49p
ONT
11:29p
10h 40m
1 stop
ONT
3:01p
IAD
12:25a
9h 24m
1 stop
Depart: Fri Aug 21 2015 Return: Mon Aug 24 2015 Trip spans 4 days
United
United
IAD
12:55p
ONT
11:29p
10h 34m
1 stop
ONT
3:01p
IAD
12:25a
9h 24m
1 stop
Depart: Sat Aug 22 2015 Return: Tue Aug 25 2015 Trip spans 4 days
United
United
IAD
2:41a
ONT
11:12a
8h 31m
1 stop
ONT
2:45a
IAD
10:10a
7h 25m
1 stop
Depart: Mon Aug 24 2015 Return: Wed Aug 26 2015 Trip spans 3 days
United
United
IAD
2:47a
ONT
11:12a
8h 25m
1 stop
ONT
1:05p
IAD
11:41p
10h 36m
1 stop
Depart: Tue Aug 25 2015 Return: Thu Aug 27 2015 Trip spans 3 days
United
United
IAD
12:49p
ONT
11:29p
10h 40m
1 stop
ONT
5:07p
IAD
12:25a
7h 18m
1 stop
Depart: Wed Aug 26 2015 Return: Fri Aug 28 2015 Trip spans 3 days
United
United
IAD
1:08p
ONT
9:32p
8h 24m
1 stop
ONT
5:07p
IAD
12:25a
7h 18m
1 stop
Depart: Thu Aug 27 2015 Return: Sun Aug 30 2015 Trip spans 4 days
United
United
IAD
2:47a
ONT
11:12a
8h 25m
1 stop
ONT
5:07p
IAD
12:25a
7h 18m
1 stop
Depart: Sat Aug 29 2015 Return: Mon Aug 31 2015 Trip spans 3 days
United
United
IAD
1:30p
ONT
11:29p
9h 59m
1 stop
ONT
1:05p
IAD
11:41p
10h 36m
1 stop
Depart: Tue Sep 1 2015 Return: Tue Sep 15 2015 Trip spans 15 days
United
United
IAD
6:44a
ONT
4:27p
9h 43m
1 stop
ONT
5:07p
IAD
12:25a
7h 18m
1 stop
Depart: Fri Sep 18 2015 Return: Mon Sep 21 2015 Trip spans 4 days
Delta
Delta
IAD
9:08a
ONT
9:31p
12h 23m
2 stops
ONT
2:20p
IAD
3:13a
12h 53m
2 stops
Depart: Sat Aug 15 2015 Return: Wed Sep 2 2015 Trip spans 19 days
American Airlines
American Airlines
IAD
2:42p
ONT
10:14p
7h 32m
1 stop
ONT
3:35a
IAD
10:52a
7h 17m
1 stop
Depart: Sun Sep 6 2015 Return: Mon Sep 14 2015 Trip spans 9 days
Alaska Airlines
Alaska Airlines
IAD
2:50p
ONT
8:35a
17h 45m
1 stop
ONT
2:00a
IAD
10:50a
8h 50m
1 stop
Airports
Origin

Washington
$313
Destination

Ontario
$313