Find Cheap 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
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: Tue Oct 17 2017 Return: Sat Oct 21 2017 Trip spans 5 days
Frontier
Frontier
IAD
12:00a
ONT
7:32a
7h 32m
1 stop
ONT
12:00a
IAD
6:55a
6h 55m
1 stop
Depart: Tue Jan 9 2018 Return: Wed Jan 17 2018 Trip spans 9 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
ONT
8:05a
8h 05m
1 stop
ONT
12:00a
IAD
8:53a
8h 53m
1 stop
Depart: Sat Sep 23 2017 Return: Tue Sep 26 2017 Trip spans 4 days
American Airlines
American Airlines
IAD
12:00a
ONT
9:16a
9h 16m
1 stop
ONT
12:00a
IAD
6:50a
6h 50m
1 stop
Depart: Wed Nov 1 2017 Return: Sat Nov 4 2017 Trip spans 4 days
Frontier
Frontier
IAD
12:00a
ONT
7:54a
7h 54m
1 stop
ONT
12:00a
IAD
6:45a
6h 45m
1 stop
Depart: Sun Dec 24 2017 Return: Fri Dec 29 2017 Trip spans 6 days
United
United
IAD
12:00a
ONT
8:28a
8h 28m
1 stop
ONT
12:00a
IAD
7:47a
7h 47m
1 stop
Depart: Sat Dec 2 2017 Return: Sat Dec 9 2017 Trip spans 8 days
Frontier
Frontier
IAD
12:00a
ONT
7:54a
7h 54m
1 stop
ONT
12:00a
IAD
6:54a
6h 54m
1 stop
Depart: Wed Dec 6 2017 Return: Sat Dec 9 2017 Trip spans 4 days
Frontier
Frontier
IAD
12:00a
ONT
7:54a
7h 54m
1 stop
ONT
12:00a
IAD
6:40a
6h 40m
1 stop
Depart: Tue Jan 9 2018 Return: Wed Jan 17 2018 Trip spans 9 days
Frontier
Frontier
IAD
12:00a
ONT
8:05a
8h 05m
1 stop
ONT
12:00a
IAD
6:51a
6h 51m
1 stop
Depart: Wed Feb 28 2018 Return: Tue Mar 6 2018 Trip spans 7 days
Frontier
Frontier
IAD
12:00a
ONT
8:11a
8h 11m
1 stop
ONT
12:00a
IAD
6:46a
6h 46m
1 stop
Depart: Tue Dec 19 2017 Return: Tue Dec 26 2017 Trip spans 8 days
Multiple Airlines
Multiple Airlines
IAD
12:00a
ONT
8:05a
8h 05m
1 stop
ONT
12:00a
IAD
9:56a
9h 56m
1 stop
Depart: Wed Mar 28 2018 Return: Tue Apr 3 2018 Trip spans 7 days
Frontier
Frontier
IAD
12:00a
ONT
8:11a
8h 11m
1 stop
ONT
12:00a
IAD
6:46a
6h 46m
1 stop
Depart: Thu Nov 2 2017 Return: Tue Nov 7 2017 Trip spans 6 days
Frontier
Frontier
IAD
12:00a
ONT
7:52a
7h 52m
1 stop
ONT
12:00a
IAD
6:33a
6h 33m
1 stop
Depart: Fri Oct 20 2017 Return: Sun Oct 22 2017 Trip spans 3 days
Frontier
Frontier
IAD
12:00a
ONT
7:55a
7h 55m
1 stop
ONT
12:00a
IAD
7:17a
7h 17m
1 stop
Depart: Tue Jan 2 2018 Return: Thu Jan 4 2018 Trip spans 3 days
Frontier
Frontier
IAD
12:00a
ONT
8:05a
8h 05m
1 stop
ONT
12:00a
IAD
6:46a
6h 46m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Washington
$198
Destination

Ontario
$198