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

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 Washington Dulles Intl to Ontario

(Round-trip)
Depart: Sat Jan 28 2017 Return: Sat Feb 4 2017 Trip spans 8 days
Major Airline
Major Airline
IAD
9:00a
ONT
2:58a
17h 58m
2 stops
ONT
8:15a
IAD
4:47a
20h 32m
2 stops
Depart: Tue Jan 10 2017 Return: Sat Jan 14 2017 Trip spans 5 days
United
United
IAD
1:55a
ONT
10:20a
8h 25m
1 stop
ONT
4:10a
IAD
11:20a
7h 10m
1 stop
Depart: Wed Jan 11 2017 Return: Sat Jan 21 2017 Trip spans 11 days
American Airlines
American Airlines
IAD
10:08a
ONT
6:13p
8h 05m
1 stop
ONT
3:25a
IAD
10:06a
6h 41m
1 stop
Depart: Wed Apr 12 2017 Return: Mon Apr 17 2017 Trip spans 6 days
Alaska Airlines
Alaska Airlines
IAD
1:30p
ONT
9:14p
31h 44m
1 stop
ONT
7:45a
IAD
9:19a
25h 34m
1 stop
Depart: Sun Jan 29 2017 Return: Fri Feb 3 2017 Trip spans 6 days
Major Airline
Major Airline
IAD
9:00a
ONT
2:58a
17h 58m
1 stop
ONT
8:15a
IAD
4:47a
20h 32m
1 stop
Depart: Mon Feb 13 2017 Return: Sat Feb 18 2017 Trip spans 6 days
Delta
Delta
IAD
9:30a
ONT
9:04p
11h 34m
2 stops
ONT
1:00a
IAD
11:00a
10h 00m
2 stops
Depart: Wed Feb 1 2017 Return: Wed Feb 8 2017 Trip spans 8 days
Major Airline
Major Airline
IAD
9:00a
ONT
2:58a
17h 58m
1 stop
ONT
1:00a
IAD
4:47a
27h 47m
1 stop
Depart: Sat Jan 14 2017 Return: Sat Jan 21 2017 Trip spans 8 days
United
United
IAD
12:20p
ONT
9:59p
9h 39m
1 stop
ONT
12:38a
IAD
10:02a
9h 24m
1 stop
Depart: Tue Jan 17 2017 Return: Sat Jan 21 2017 Trip spans 5 days
American Airlines
American Airlines
IAD
10:08a
ONT
6:13p
8h 05m
1 stop
ONT
3:25a
IAD
10:06a
6h 41m
1 stop
Depart: Sat Feb 4 2017 Return: Wed Feb 8 2017 Trip spans 5 days
Major Airline
Major Airline
IAD
9:00a
ONT
2:58a
17h 58m
1 stop
ONT
8:15a
IAD
4:47a
20h 32m
1 stop
Depart: Mon Jan 9 2017 Return: Tue Jan 10 2017 Trip spans 2 days
United
United
IAD
11:14a
ONT
6:15p
7h 01m
1 stop
ONT
12:38a
IAD
7:13a
6h 35m
1 stop
Depart: Fri Jan 6 2017 Return: Tue Jan 10 2017 Trip spans 5 days
American Airlines
American Airlines
IAD
2:00a
ONT
11:33a
9h 33m
1 stop
ONT
5:54a
IAD
2:18p
8h 24m
1 stop
Depart: Wed Jan 18 2017 Return: Sat Jan 21 2017 Trip spans 4 days
American Airlines
American Airlines
IAD
6:29a
ONT
4:12p
9h 43m
1 stop
ONT
1:09a
IAD
10:06a
8h 57m
1 stop
Depart: Tue Feb 14 2017 Return: Tue Feb 21 2017 Trip spans 8 days
United
United
IAD
3:15a
ONT
10:44a
7h 29m
1 stop
ONT
12:30a
IAD
8:25a
7h 55m
1 stop
Depart: Wed Jan 25 2017 Return: Sat Jan 28 2017 Trip spans 4 days
American Airlines
American Airlines
IAD
10:08a
ONT
6:13p
8h 05m
1 stop
ONT
3:25a
IAD
10:06a
6h 41m
1 stop
Depart: Wed Feb 15 2017 Return: Tue Feb 21 2017 Trip spans 7 days
United
United
IAD
10:45a
ONT
6:48p
8h 03m
1 stop
ONT
12:30a
IAD
8:25a
7h 55m
1 stop
Depart: Thu Jan 5 2017 Return: Sun Jan 15 2017 Trip spans 11 days
Major Airline
Major Airline
IAD
9:00a
ONT
2:52a
17h 52m
2 stops
ONT
1:00a
IAD
4:47a
27h 47m
2 stops
Depart: Tue Feb 21 2017 Return: Tue Mar 7 2017 Trip spans 15 days
United
United
IAD
11:11a
ONT
6:25p
7h 14m
1 stop
ONT
8:30a
IAD
2:48p
6h 18m
1 stop
Depart: Wed Feb 22 2017 Return: Tue Mar 7 2017 Trip spans 14 days
American Airlines
American Airlines
IAD
9:54a
ONT
6:13p
8h 19m
1 stop
ONT
7:59p
IAD
3:21a
7h 22m
1 stop
Depart: Wed May 3 2017 Return: Fri May 12 2017 Trip spans 10 days
Alaska Airlines
Alaska Airlines
IAD
1:30p
ONT
8:52a
19h 22m
1 stop
ONT
7:45a
IAD
9:24a
25h 39m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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

Washington
$298
Destination

Ontario
$298