Browse Origins:
Browse Destinations:

Find Flight Deals from Ontario to Washington (ONT - WAS)

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

Book cheap flights from Ontario to Washington

(Round-trip)
Depart: Sat May 16 2015 Return: Sun May 24 2015 Trip spans 9 days
United
United
ONT
2:55a
IAD
10:32a
7h 37m
1 stop
IAD
1:45a
ONT
10:10a
8h 25m
1 stop
Depart: Tue May 19 2015 Return: Sun May 24 2015 Trip spans 6 days
United
United
ONT
6:43a
DCA
3:35p
8h 52m
1 stop
DCA
10:21a
ONT
6:55p
8h 34m
1 stop
Depart: Sat May 23 2015 Return: Mon May 25 2015 Trip spans 3 days
American Airlines
American Airlines
ONT
2:05a
IAD
10:26a
8h 21m
1 stop
IAD
1:30a
ONT
9:05a
7h 35m
1 stop
Depart: Mon May 18 2015 Return: Sun May 24 2015 Trip spans 7 days
United
United
ONT
3:17p
IAD
11:40p
8h 23m
1 stop
IAD
5:10a
ONT
4:19p
11h 09m
1 stop
Depart: Wed May 20 2015 Return: Sun May 24 2015 Trip spans 5 days
United
United
ONT
8:08a
DCA
4:12p
8h 04m
1 stop
DCA
10:21a
ONT
6:55p
8h 34m
1 stop
Depart: Tue May 26 2015 Return: Thu May 28 2015 Trip spans 3 days
United
United
ONT
8:47a
IAD
6:58p
10h 11m
1 stop
IAD
10:22a
ONT
7:25p
9h 03m
1 stop
Depart: Wed May 27 2015 Return: Fri May 29 2015 Trip spans 3 days
United
United
ONT
8:08a
DCA
4:12p
8h 04m
1 stop
DCA
1:46a
ONT
10:00a
8h 14m
1 stop
Depart: Thu May 28 2015 Return: Sat May 30 2015 Trip spans 3 days
United
United
ONT
6:43a
DCA
3:35p
8h 52m
1 stop
DCA
1:45a
ONT
10:27a
8h 42m
1 stop
Depart: Fri May 29 2015 Return: Sun May 31 2015 Trip spans 3 days
United
United
ONT
9:24a
IAD
6:03p
8h 39m
1 stop
IAD
2:07a
ONT
11:17a
9h 10m
1 stop
Depart: Sat May 30 2015 Return: Tue Jun 2 2015 Trip spans 4 days
United
United
ONT
8:02a
DCA
4:17p
8h 15m
1 stop
DCA
1:46a
ONT
10:00a
8h 14m
1 stop
Depart: Tue Jun 2 2015 Return: Sat Jun 6 2015 Trip spans 5 days
United
United
ONT
2:55a
DCA
11:48a
8h 53m
1 stop
DCA
1:51a
ONT
9:48a
7h 57m
1 stop
Depart: Wed Jun 3 2015 Return: Sat Jun 6 2015 Trip spans 4 days
United
United
ONT
8:08a
DCA
4:12p
8h 04m
1 stop
DCA
1:51a
ONT
9:48a
7h 57m
1 stop
Depart: Sat Jun 6 2015 Return: Tue Jun 9 2015 Trip spans 4 days
United
United
ONT
7:41a
DCA
4:17p
8h 36m
1 stop
DCA
1:51a
ONT
9:48a
7h 57m
1 stop
Depart: Tue Sep 8 2015 Return: Sat Sep 12 2015 Trip spans 5 days
United
United
ONT
9:15a
IAD
5:45p
8h 30m
1 stop
IAD
4:00a
ONT
1:38p
9h 38m
1 stop
Depart: Sat Oct 17 2015 Return: Sat Oct 24 2015 Trip spans 8 days
United
United
ONT
3:05p
IAD
11:53p
8h 48m
1 stop
IAD
12:50p
ONT
10:59p
10h 09m
1 stop
Depart: Sat May 9 2015 Return: Tue May 19 2015 Trip spans 11 days
US Airways
US Airways
ONT
8:35a
IAD
5:28p
8h 53m
2 stops
IAD
1:30a
ONT
9:05a
7h 35m
1 stop
Depart: Tue May 12 2015 Return: Tue May 19 2015 Trip spans 8 days
American Airlines
American Airlines
ONT
10:20a
IAD
5:28p
7h 08m
1 stop
IAD
1:30a
ONT
9:05a
7h 35m
1 stop
Depart: Mon May 11 2015 Return: Sun May 24 2015 Trip spans 14 days
American Airlines
American Airlines
ONT
10:20a
DCA
5:07p
6h 47m
1 stop
DCA
1:30a
ONT
9:05a
7h 35m
1 stop
Depart: Wed May 13 2015 Return: Sun May 24 2015 Trip spans 12 days
US Airways
US Airways
ONT
10:20a
DCA
5:07p
6h 47m
1 stop
DCA
1:30a
ONT
9:05a
7h 35m
1 stop
Depart: Thu Aug 13 2015 Return: Thu Aug 20 2015 Trip spans 8 days
Alaska Airlines
Alaska Airlines
ONT
6:25a
DCA
2:59p
8h 34m
1 stop
DCA
5:15a
ONT
7:04p
13h 49m
2 stops
Airports
Origin

Ontario
$381
Destination

Washington
only $381
only $381