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

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

Book cheap flights from Ontario to Washington Dulles Intl

(Round-trip)
Depart: Wed Jul 15 2015 Return: Wed Aug 5 2015 Trip spans 22 days
United
United
ONT
9:59a
IAD
5:32p
7h 33m
1 stop
IAD
2:00a
ONT
12:29p
10h 29m
1 stop
Depart: Tue Sep 15 2015 Return: Wed Sep 30 2015 Trip spans 16 days
United
United
ONT
9:15a
IAD
3:48p
6h 33m
1 stop
IAD
4:25a
ONT
11:38a
7h 13m
1 stop
Depart: Wed Oct 7 2015 Return: Wed Oct 21 2015 Trip spans 15 days
United
United
ONT
1:20a
IAD
8:55a
7h 35m
1 stop
IAD
12:50p
ONT
10:59p
10h 09m
1 stop
Depart: Tue Oct 13 2015 Return: Sat Oct 17 2015 Trip spans 5 days
United
United
ONT
2:00p
IAD
11:29p
9h 29m
1 stop
IAD
12:50p
ONT
10:59p
10h 09m
1 stop
Depart: Wed Oct 14 2015 Return: Tue Oct 20 2015 Trip spans 7 days
United
United
ONT
6:40a
IAD
2:01p
7h 21m
1 stop
IAD
3:00a
ONT
10:58a
7h 58m
1 stop
Depart: Sat Oct 17 2015 Return: Tue Oct 20 2015 Trip spans 4 days
United
United
ONT
3:05p
IAD
11:29p
8h 24m
1 stop
IAD
10:21a
ONT
7:00p
8h 39m
1 stop
Depart: Tue Nov 3 2015 Return: Wed Nov 11 2015 Trip spans 9 days
United
United
ONT
8:15a
IAD
3:13p
6h 58m
1 stop
IAD
9:21a
ONT
6:00p
8h 39m
1 stop
Depart: Tue Aug 25 2015 Return: Sat Aug 29 2015 Trip spans 5 days
American Airlines
American Airlines
ONT
8:59p
IAD
4:21a
7h 22m
1 stop
IAD
2:35p
ONT
10:08p
7h 33m
1 stop
Depart: Wed Jun 17 2015 Return: Tue Jun 30 2015 Trip spans 14 days
United
United
ONT
8:44a
IAD
6:37p
9h 53m
1 stop
IAD
1:10p
ONT
9:25p
8h 15m
1 stop
Depart: Sat Jun 20 2015 Return: Tue Jun 30 2015 Trip spans 11 days
United
United
ONT
8:44a
IAD
5:28p
8h 44m
1 stop
IAD
1:45a
ONT
9:48a
8h 03m
1 stop
Depart: Tue Jul 7 2015 Return: Tue Jul 14 2015 Trip spans 8 days
United
United
ONT
7:59p
IAD
4:29a
8h 30m
1 stop
IAD
1:45a
ONT
9:28a
7h 43m
1 stop
Depart: Wed Jul 8 2015 Return: Tue Aug 11 2015 Trip spans 35 days
United
United
ONT
9:59a
IAD
7:08p
9h 09m
1 stop
IAD
1:30p
ONT
11:34p
10h 04m
1 stop
Depart: Sat Jul 11 2015 Return: Tue Aug 11 2015 Trip spans 32 days
United
United
ONT
9:59a
IAD
5:32p
7h 33m
1 stop
IAD
1:45a
ONT
9:28a
7h 43m
1 stop
Depart: Tue Jul 14 2015 Return: Tue Jul 21 2015 Trip spans 8 days
United
United
ONT
5:00p
IAD
12:54a
7h 54m
1 stop
IAD
1:45a
ONT
9:28a
7h 43m
1 stop
Depart: Tue Jul 21 2015 Return: Tue Aug 4 2015 Trip spans 15 days
United
United
ONT
5:00p
IAD
12:54a
7h 54m
1 stop
IAD
1:45a
ONT
9:28a
7h 43m
1 stop
Depart: Wed Jul 22 2015 Return: Tue Aug 4 2015 Trip spans 14 days
United
United
ONT
5:00p
IAD
12:54a
7h 54m
1 stop
IAD
1:45a
ONT
9:28a
7h 43m
1 stop
Depart: Tue Aug 4 2015 Return: Tue Aug 11 2015 Trip spans 8 days
United
United
ONT
9:59a
IAD
5:35p
7h 36m
1 stop
IAD
1:45a
ONT
9:28a
7h 43m
1 stop
Depart: Wed Aug 5 2015 Return: Tue Aug 11 2015 Trip spans 7 days
United
United
ONT
9:59a
IAD
5:33p
7h 34m
1 stop
IAD
1:30p
ONT
11:34p
10h 04m
1 stop
Depart: Tue Aug 11 2015 Return: Tue Aug 18 2015 Trip spans 8 days
United
United
ONT
5:00p
IAD
12:54a
7h 54m
1 stop
IAD
5:20a
ONT
1:38p
8h 18m
1 stop
Depart: Tue Jun 9 2015 Return: Thu Jun 18 2015 Trip spans 10 days
US Airways
US Airways
ONT
10:15a
IAD
5:19p
7h 04m
1 stop
IAD
11:24a
ONT
9:58p
10h 34m
1 stop
Airports
Origin

Ontario
$401
Destination

Washington
$401