Browse Origins:
Browse Destinations:

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

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

Book cheap flights from Washington Dulles Intl to Ontario

(Round-trip)
Depart: Tue Aug 25 2015 Return: Tue Sep 1 2015 Trip spans 8 days
United
United
IAD
3:00a
ONT
10:58a
7h 58m
1 stop
ONT
6:40a
IAD
4:39p
9h 59m
1 stop
Depart: Wed Aug 26 2015 Return: Wed Sep 2 2015 Trip spans 8 days
United
United
IAD
3:00a
ONT
10:58a
7h 58m
1 stop
ONT
9:15a
IAD
3:48p
6h 33m
1 stop
Depart: Thu Aug 27 2015 Return: Mon Aug 31 2015 Trip spans 5 days
United
United
IAD
3:00a
ONT
10:58a
7h 58m
1 stop
ONT
8:30a
IAD
6:02p
9h 32m
1 stop
Depart: Sat Aug 29 2015 Return: Sat Sep 5 2015 Trip spans 8 days
United
United
IAD
8:30a
ONT
5:33p
9h 03m
1 stop
ONT
1:20p
IAD
11:29p
10h 09m
1 stop
Depart: Mon Aug 31 2015 Return: Mon Sep 28 2015 Trip spans 29 days
United
United
IAD
10:21a
ONT
7:00p
8h 39m
1 stop
ONT
4:45p
IAD
11:53p
7h 08m
1 stop
Depart: Tue Sep 1 2015 Return: Mon Sep 28 2015 Trip spans 28 days
United
United
IAD
5:20a
ONT
1:38p
8h 18m
1 stop
ONT
4:45p
IAD
11:53p
7h 08m
1 stop
Depart: Wed Sep 2 2015 Return: Sun Sep 6 2015 Trip spans 5 days
United
United
IAD
4:30a
ONT
1:38p
9h 08m
1 stop
ONT
3:00a
IAD
9:52a
6h 52m
1 stop
Depart: Sun Sep 6 2015 Return: Sat Sep 19 2015 Trip spans 14 days
United
United
IAD
4:25a
ONT
11:38a
7h 13m
1 stop
ONT
3:00a
IAD
9:52a
6h 52m
1 stop
Depart: Wed Sep 9 2015 Return: Tue Sep 15 2015 Trip spans 7 days
United
United
IAD
4:25a
ONT
11:38a
7h 13m
1 stop
ONT
9:15a
IAD
3:48p
6h 33m
1 stop
Depart: Thu Sep 10 2015 Return: Mon Sep 14 2015 Trip spans 5 days
United
United
IAD
4:00a
ONT
1:38p
9h 38m
1 stop
ONT
1:20p
IAD
11:29p
10h 09m
1 stop
Depart: Thu Sep 17 2015 Return: Mon Sep 21 2015 Trip spans 5 days
United
United
IAD
8:30a
ONT
5:33p
9h 03m
1 stop
ONT
1:20p
IAD
11:29p
10h 09m
1 stop
Depart: Sat Sep 19 2015 Return: Mon Sep 21 2015 Trip spans 3 days
United
United
IAD
8:30a
ONT
5:33p
9h 03m
1 stop
ONT
4:45p
IAD
11:53p
7h 08m
1 stop
Depart: Thu Sep 24 2015 Return: Mon Sep 28 2015 Trip spans 5 days
United
United
IAD
3:00a
ONT
10:58a
7h 58m
1 stop
ONT
8:30a
IAD
6:02p
9h 32m
1 stop
Depart: Mon Sep 28 2015 Return: Mon Oct 5 2015 Trip spans 8 days
United
United
IAD
5:20a
ONT
4:18p
10h 58m
1 stop
ONT
8:30a
IAD
6:02p
9h 32m
1 stop
Depart: Wed Sep 30 2015 Return: Tue Oct 6 2015 Trip spans 7 days
United
United
IAD
4:25a
ONT
11:38a
7h 13m
1 stop
ONT
9:15a
IAD
4:13p
6h 58m
1 stop
Depart: Thu Oct 1 2015 Return: Mon Oct 5 2015 Trip spans 5 days
United
United
IAD
5:20a
ONT
3:48p
10h 28m
1 stop
ONT
8:30a
IAD
6:02p
9h 32m
1 stop
Depart: Sat Oct 3 2015 Return: Sat Oct 10 2015 Trip spans 8 days
United
United
IAD
3:00a
ONT
10:58a
7h 58m
1 stop
ONT
3:05p
IAD
11:53p
8h 48m
1 stop
Depart: Wed Oct 7 2015 Return: Wed Oct 14 2015 Trip spans 8 days
United
United
IAD
10:21a
ONT
7:00p
8h 39m
1 stop
ONT
3:05p
IAD
11:53p
8h 48m
1 stop
Depart: Wed Sep 16 2015 Return: Mon Sep 21 2015 Trip spans 6 days
American Airlines
American Airlines
IAD
2:35p
ONT
10:08p
7h 33m
1 stop
ONT
8:59p
IAD
4:21a
7h 22m
1 stop
Depart: Sat Jun 20 2015 Return: Sat Jul 4 2015 Trip spans 15 days
US Airways
US Airways
IAD
1:28a
ONT
9:12a
7h 44m
1 stop
ONT
3:35a
IAD
10:52a
7h 17m
1 stop
Airports
Origin

Washington
$377
Destination

Ontario
$377