Find Deals on Flights from Ontario to Washington (ONT - WAS)

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 Ontario to Washington

(Round-trip)
Depart: Sat Sep 5 2015 Return: Tue Sep 8 2015 Trip spans 4 days
United
United
ONT
2:45a
IAD
10:10a
7h 25m
1 stop
IAD
2:47a
ONT
11:12a
8h 25m
1 stop
Depart: Thu Aug 20 2015 Return: Sat Sep 5 2015 Trip spans 17 days
United
United
ONT
1:00a
IAD
8:28a
7h 28m
1 stop
IAD
2:47a
ONT
11:12a
8h 25m
1 stop
Depart: Tue Sep 1 2015 Return: Tue Sep 8 2015 Trip spans 8 days
United
United
ONT
1:00a
IAD
8:28a
7h 28m
1 stop
IAD
11:40a
ONT
7:37p
7h 57m
1 stop
Depart: Thu Sep 3 2015 Return: Tue Sep 8 2015 Trip spans 6 days
United
United
ONT
8:44a
IAD
6:52p
10h 08m
1 stop
IAD
12:49p
ONT
11:29p
10h 40m
1 stop
Depart: Fri Sep 4 2015 Return: Sat Sep 5 2015 Trip spans 2 days
United
United
ONT
8:44a
IAD
6:52p
10h 08m
1 stop
IAD
1:20p
ONT
11:29p
10h 09m
1 stop
Depart: Tue Sep 8 2015 Return: Fri Sep 11 2015 Trip spans 4 days
United
United
ONT
1:05p
IAD
11:41p
10h 36m
1 stop
IAD
10:40a
ONT
7:14p
8h 34m
1 stop
Depart: Tue Sep 15 2015 Return: Wed Sep 16 2015 Trip spans 2 days
United
United
ONT
3:01p
IAD
12:25a
9h 24m
1 stop
IAD
6:44a
ONT
5:31p
10h 47m
1 stop
Depart: Wed Sep 16 2015 Return: Thu Sep 17 2015 Trip spans 2 days
United
United
ONT
2:00p
IAD
12:25a
10h 25m
1 stop
IAD
6:44a
ONT
4:27p
9h 43m
1 stop
Depart: Tue Sep 22 2015 Return: Wed Sep 23 2015 Trip spans 2 days
United
United
ONT
2:00p
IAD
11:41p
9h 41m
1 stop
IAD
5:08a
ONT
4:27p
11h 19m
1 stop
Depart: Mon Aug 24 2015 Return: Sat Aug 29 2015 Trip spans 6 days
United
United
ONT
5:07p
DCA
3:56a
10h 49m
2 stops
DCA
1:46a
ONT
9:44a
7h 58m
1 stop
Depart: Tue Aug 18 2015 Return: Thu Aug 20 2015 Trip spans 3 days
United
United
ONT
3:01p
IAD
12:25a
9h 24m
1 stop
IAD
1:30p
ONT
11:29p
9h 59m
1 stop
Depart: Wed Aug 19 2015 Return: Thu Aug 20 2015 Trip spans 2 days
United
United
ONT
1:00a
IAD
8:28a
7h 28m
1 stop
IAD
1:30p
ONT
11:29p
9h 59m
1 stop
Depart: Fri Aug 21 2015 Return: Sat Aug 22 2015 Trip spans 2 days
United
United
ONT
2:45a
DCA
11:34a
8h 49m
1 stop
DCA
1:46a
ONT
9:44a
7h 58m
1 stop
Depart: Tue Aug 25 2015 Return: Sat Aug 29 2015 Trip spans 5 days
United
United
ONT
5:07p
IAD
12:25a
7h 18m
1 stop
IAD
1:08p
ONT
9:32p
8h 24m
1 stop
Depart: Wed Aug 26 2015 Return: Sat Aug 29 2015 Trip spans 4 days
United
United
ONT
6:24a
DCA
3:26p
9h 02m
1 stop
DCA
1:46a
ONT
9:44a
7h 58m
1 stop
Depart: Tue Oct 20 2015 Return: Tue Oct 27 2015 Trip spans 8 days
American Airlines
American Airlines
ONT
3:25p
DCA
2:58a
11h 33m
2 stops
DCA
1:40a
ONT
9:12a
7h 32m
1 stop
Depart: Sat Oct 3 2015 Return: Sat Oct 17 2015 Trip spans 15 days
Delta
Delta
ONT
2:15a
DCA
8:46a
6h 31m
1 stop
DCA
3:25a
ONT
11:11a
7h 46m
1 stop
Depart: Fri Aug 7 2015 Return: Fri Aug 21 2015 Trip spans 15 days
American Airlines
American Airlines
ONT
3:25p
IAD
4:18a
12h 53m
2 stops
IAD
8:05a
ONT
9:58p
13h 53m
1 stop
Depart: Mon Oct 5 2015 Return: Tue Oct 13 2015 Trip spans 9 days
US Airways
US Airways
ONT
8:35a
DCA
2:58p
6h 23m
1 stop
DCA
1:15p
ONT
7:57p
6h 42m
1 stop
Depart: Tue Dec 29 2015 Return: Tue Jan 5 2016 Trip spans 8 days
Alaska Airlines
Alaska Airlines
ONT
4:30a
DCA
1:59p
9h 29m
2 stops
DCA
3:00a
ONT
6:23p
15h 23m
2 stops
Airports
Origin

Ontario
$313
Destination

Washington
only $313
only $321