Find Deals on 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
Students
under 26
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: Tue Jan 24 2017 Return: Sun Jan 29 2017 Trip spans 6 days
Major Airline
Major Airline
ONT
10:59a
DCA
4:54a
17h 55m
1 stop
DCA
7:15a
ONT
1:48a
18h 33m
1 stop
Depart: Tue Jan 10 2017 Return: Sat Jan 14 2017 Trip spans 5 days
United
United
ONT
7:50a
IAD
3:59p
8h 09m
1 stop
IAD
1:27p
ONT
9:59p
8h 32m
1 stop
Depart: Wed Jan 11 2017 Return: Sat Jan 14 2017 Trip spans 4 days
American Airlines
American Airlines
ONT
1:09a
DCA
9:14a
8h 05m
1 stop
DCA
12:00p
ONT
7:39p
7h 39m
1 stop
Depart: Fri Jan 27 2017 Return: Mon Jan 30 2017 Trip spans 4 days
Delta
Delta
ONT
1:00a
DCA
7:50a
6h 50m
1 stop
DCA
11:45a
ONT
9:04p
9h 19m
1 stop
Depart: Fri Apr 28 2017 Return: Fri May 12 2017 Trip spans 15 days
Alaska Airlines
Alaska Airlines
ONT
1:30p
IAD
9:19a
19h 49m
1 stop
IAD
1:30p
ONT
9:15p
31h 45m
1 stop
Depart: Wed Jan 25 2017 Return: Sat Jan 28 2017 Trip spans 4 days
American Airlines
American Airlines
ONT
9:24a
DCA
3:57p
6h 33m
1 stop
DCA
12:00p
ONT
7:39p
7h 39m
1 stop
Depart: Wed Feb 15 2017 Return: Tue Feb 21 2017 Trip spans 7 days
United
United
ONT
12:38a
IAD
7:13a
6h 35m
1 stop
IAD
11:11a
ONT
6:25p
7h 14m
1 stop
Depart: Tue Feb 7 2017 Return: Fri Feb 10 2017 Trip spans 4 days
Major Airline
Major Airline
ONT
10:59a
DCA
4:53a
17h 54m
2 stops
DCA
7:15a
ONT
1:48a
18h 33m
2 stops
Depart: Sat Feb 4 2017 Return: Tue Feb 7 2017 Trip spans 4 days
American Airlines
American Airlines
ONT
1:15a
DCA
7:56a
6h 41m
1 stop
DCA
12:40a
ONT
8:09a
7h 29m
1 stop
Depart: Sat Feb 25 2017 Return: Wed Mar 1 2017 Trip spans 5 days
United
United
ONT
7:08a
DCA
2:38p
7h 30m
1 stop
DCA
3:30a
ONT
2:13p
10h 43m
1 stop
Depart: Wed Feb 8 2017 Return: Sat Feb 11 2017 Trip spans 4 days
American Airlines
American Airlines
ONT
9:24a
DCA
3:57p
6h 33m
1 stop
DCA
12:00p
ONT
7:39p
7h 39m
1 stop
Depart: Tue Mar 7 2017 Return: Wed Mar 8 2017 Trip spans 2 days
United
United
ONT
8:30a
IAD
2:48p
6h 18m
1 stop
IAD
11:11a
ONT
6:35p
7h 24m
1 stop
Depart: Fri Feb 17 2017 Return: Tue Feb 21 2017 Trip spans 5 days
American Airlines
American Airlines
ONT
8:15p
IAD
2:47a
6h 32m
1 stop
IAD
9:54a
ONT
6:13p
8h 19m
1 stop
Depart: Sat Jan 14 2017 Return: Fri Jan 20 2017 Trip spans 7 days
United
United
ONT
12:38a
DCA
6:57a
6h 19m
1 stop
DCA
11:05a
ONT
6:15p
7h 10m
1 stop
Depart: Sat Feb 18 2017 Return: Wed Feb 22 2017 Trip spans 5 days
American Airlines
American Airlines
ONT
3:25a
IAD
10:06a
6h 41m
1 stop
IAD
9:54a
ONT
6:13p
8h 19m
1 stop
Depart: Fri Mar 10 2017 Return: Tue Mar 14 2017 Trip spans 4 days
Major Airline
Major Airline
ONT
8:15a
DCA
8:54a
24h 39m
1 stop
DCA
9:08a
ONT
5:23a
20h 15m
1 stop
Depart: Mon Jan 23 2017 Return: Sat Jan 28 2017 Trip spans 6 days
United
United
ONT
8:30a
IAD
2:44p
6h 14m
1 stop
IAD
3:15a
ONT
10:43a
7h 28m
1 stop
Depart: Fri Feb 24 2017 Return: Wed Mar 1 2017 Trip spans 6 days
American Airlines
American Airlines
ONT
8:15p
IAD
2:47a
6h 32m
1 stop
IAD
9:54a
ONT
6:13p
8h 19m
1 stop
Depart: Sun Feb 19 2017 Return: Tue Feb 21 2017 Trip spans 3 days
United
United
ONT
12:30a
IAD
8:21a
7h 51m
1 stop
IAD
11:11a
ONT
6:25p
7h 14m
1 stop
Depart: Tue Dec 20 2016 Return: Wed Jan 4 2017 Trip spans 16 days
Delta
Delta
ONT
1:00a
DCA
12:43p
11h 43m
2 stops
DCA
10:00a
ONT
8:57p
10h 57m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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Airports
Origin

Ontario
$284
Destination

Washington
only $294
only $284