Find Cheap Flights from Ontario to Washington (ONT - WAS)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
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: Wed May 31 2017 Return: Thu Jun 1 2017 Trip spans 2 days
United
United
ONT
3:10p
IAD
12:19a
9h 09m
1 stop
IAD
6:45a
ONT
5:40p
10h 55m
1 stop
Depart: Tue May 16 2017 Return: Sat May 20 2017 Trip spans 5 days
Major Airline
Major Airline
ONT
10:20p
DCA
10:56a
12h 36m
1 stop
DCA
10:50a
ONT
6:23a
19h 33m
1 stop
Depart: Fri Sep 29 2017 Return: Mon Oct 9 2017 Trip spans 11 days
American Airlines
American Airlines
ONT
8:59p
DCA
12:00p
15h 01m
1 stop
DCA
4:00p
ONT
10:08p
30h 08m
1 stop
Depart: Wed May 17 2017 Return: Sun May 28 2017 Trip spans 12 days
United
United
ONT
6:40a
IAD
4:10p
9h 30m
1 stop
IAD
6:45a
ONT
5:40p
10h 55m
1 stop
Depart: Sat May 27 2017 Return: Sat Jun 3 2017 Trip spans 8 days
Major Airline
Major Airline
ONT
10:20p
DCA
10:56a
12h 36m
2 stops
DCA
10:50a
ONT
6:17a
19h 27m
2 stops
Depart: Thu Oct 12 2017 Return: Sun Oct 15 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
ONT
2:20a
DCA
2:59p
12h 39m
1 stop
DCA
4:00a
ONT
3:30p
11h 30m
1 stop
Depart: Sat May 20 2017 Return: Sun May 28 2017 Trip spans 9 days
United
United
ONT
3:10p
IAD
12:19a
9h 09m
1 stop
IAD
6:45a
ONT
5:40p
10h 55m
1 stop
Depart: Tue Sep 12 2017 Return: Wed Sep 20 2017 Trip spans 9 days
Major Airline
Major Airline
ONT
10:20p
DCA
10:59a
12h 39m
2 stops
DCA
9:10a
ONT
5:28a
20h 18m
2 stops
Depart: Thu Oct 5 2017 Return: Mon Oct 9 2017 Trip spans 5 days
American Airlines
American Airlines
ONT
5:50p
DCA
12:00a
6h 10m
1 stop
DCA
4:00p
ONT
10:08p
30h 08m
1 stop
Depart: Tue May 23 2017 Return: Wed May 31 2017 Trip spans 9 days
United
United
ONT
6:40a
IAD
4:10p
9h 30m
1 stop
IAD
2:40a
ONT
11:06a
8h 26m
1 stop
Depart: Sat Jun 10 2017 Return: Tue Jun 13 2017 Trip spans 4 days
Major Airline
Major Airline
ONT
9:15a
IAD
5:17a
20h 02m
2 stops
IAD
9:20a
ONT
11:17a
25h 57m
2 stops
Depart: Fri Oct 6 2017 Return: Mon Oct 9 2017 Trip spans 4 days
American Airlines
American Airlines
ONT
3:30p
DCA
12:00a
8h 30m
1 stop
DCA
4:00p
ONT
8:57a
16h 57m
1 stop
Depart: Wed May 24 2017 Return: Sun May 28 2017 Trip spans 5 days
United
United
ONT
6:40a
IAD
4:08p
9h 28m
1 stop
IAD
6:45a
ONT
5:40p
10h 55m
1 stop
Depart: Fri Sep 22 2017 Return: Mon Sep 25 2017 Trip spans 4 days
Major Airline
Major Airline
ONT
12:45p
DCA
6:40a
17h 55m
1 stop
DCA
12:00a
ONT
11:30a
11h 30m
1 stop
Depart: Fri Aug 18 2017 Return: Wed Aug 30 2017 Trip spans 13 days
American Airlines
American Airlines
ONT
3:35p
IAD
4:00a
12h 25m
2 stops
IAD
3:09a
ONT
5:28p
14h 19m
2 stops
Depart: Sun May 28 2017 Return: Sat Jun 3 2017 Trip spans 7 days
United
United
ONT
6:40a
DCA
2:58p
8h 18m
1 stop
DCA
4:33a
ONT
3:21p
10h 48m
1 stop
Depart: Thu Sep 7 2017 Return: Mon Sep 11 2017 Trip spans 5 days
Major Airline
Major Airline
ONT
12:45p
DCA
6:40a
17h 55m
1 stop
DCA
9:10a
ONT
5:28a
20h 18m
1 stop
Depart: Fri Aug 11 2017 Return: Wed Aug 23 2017 Trip spans 13 days
American Airlines
American Airlines
ONT
9:10p
IAD
4:00a
6h 50m
1 stop
IAD
3:09a
ONT
5:28p
14h 19m
2 stops
Depart: Tue May 30 2017 Return: Wed May 31 2017 Trip spans 2 days
United
United
ONT
8:40a
IAD
4:10p
7h 30m
1 stop
IAD
6:45a
ONT
3:21p
8h 36m
1 stop
Depart: Tue Aug 22 2017 Return: Sat Sep 2 2017 Trip spans 12 days
United
United
ONT
3:15p
IAD
10:36p
7h 21m
1 stop
IAD
4:30a
ONT
3:20p
10h 50m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Ontario
$394
Destination

Washington
only $394
only $396