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

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 Dulles Intl

(Round-trip)
Depart: Tue Oct 17 2017 Return: Tue Oct 24 2017 Trip spans 8 days
Frontier
Frontier
ONT
12:00a
IAD
7:00a
7h 00m
1 stop
IAD
12:00a
ONT
7:32a
7h 32m
1 stop
Depart: Tue Oct 17 2017 Return: Wed Nov 1 2017 Trip spans 16 days
Multiple Airlines
Multiple Airlines
ONT
12:00a
IAD
9:08a
9h 08m
1 stop
IAD
12:00a
ONT
7:54a
7h 54m
1 stop
Depart: Tue Sep 26 2017 Return: Wed Oct 4 2017 Trip spans 9 days
American Airlines
American Airlines
ONT
12:00a
IAD
6:50a
6h 50m
1 stop
IAD
12:00a
ONT
11:00a
11h 00m
1 stop
Depart: Fri Nov 3 2017 Return: Sun Nov 5 2017 Trip spans 3 days
Frontier
Frontier
ONT
12:00a
IAD
6:45a
6h 45m
1 stop
IAD
12:00a
ONT
6:52a
7h 52m
1 stop
Depart: Thu Dec 7 2017 Return: Sun Dec 10 2017 Trip spans 4 days
Frontier
Frontier
ONT
12:00a
IAD
6:33a
6h 33m
1 stop
IAD
12:00a
ONT
8:05a
8h 05m
1 stop
Depart: Tue Nov 21 2017 Return: Mon Nov 27 2017 Trip spans 7 days
Major Airline
Major Airline
ONT
12:00a
IAD
6:33a
6h 33m
nonstop
IAD
12:00a
ONT
7:54a
7h 54m
nonstop
Depart: Fri Dec 8 2017 Return: Mon Dec 11 2017 Trip spans 4 days
Frontier
Frontier
ONT
12:00a
IAD
6:40a
6h 40m
1 stop
IAD
12:00a
ONT
8:11a
8h 11m
1 stop
Depart: Wed Mar 14 2018 Return: Wed Mar 21 2018 Trip spans 8 days
Frontier
Frontier
ONT
12:00a
IAD
6:50a
6h 50m
1 stop
IAD
12:00a
ONT
8:11a
8h 11m
1 stop
Depart: Tue Jan 9 2018 Return: Wed Jan 10 2018 Trip spans 2 days
Frontier
Frontier
ONT
12:00a
IAD
6:46a
6h 46m
1 stop
IAD
12:00a
ONT
8:11a
8h 11m
1 stop
Depart: Tue Sep 26 2017 Return: Sun Oct 1 2017 Trip spans 6 days
American Airlines
American Airlines
ONT
12:00a
IAD
6:50a
6h 50m
1 stop
IAD
12:00a
ONT
7:05a
7h 05m
1 stop
Depart: Wed Feb 21 2018 Return: Sun Feb 25 2018 Trip spans 5 days
Frontier
Frontier
ONT
12:00a
IAD
6:51a
6h 51m
1 stop
IAD
12:00a
ONT
8:05a
8h 05m
1 stop
Depart: Fri Mar 23 2018 Return: Mon Mar 26 2018 Trip spans 4 days
Frontier
Frontier
ONT
12:00a
IAD
6:50a
6h 50m
1 stop
IAD
12:00a
ONT
8:11a
8h 11m
1 stop
Depart: Fri Nov 10 2017 Return: Fri Nov 24 2017 Trip spans 15 days
Frontier
Frontier
ONT
12:00a
IAD
6:40a
6h 40m
1 stop
IAD
12:00a
ONT
7:54a
7h 54m
1 stop
Depart: Tue Nov 14 2017 Return: Tue Nov 21 2017 Trip spans 8 days
Frontier
Frontier
ONT
12:00a
IAD
6:33a
6h 33m
1 stop
IAD
12:00a
ONT
7:52a
7h 52m
1 stop
Depart: Wed Nov 22 2017 Return: Sat Nov 25 2017 Trip spans 4 days
$1273
Select
Multiple Airlines
Multiple Airlines
ONT
12:00a
IAD
7:48p
19h 48m
2 stops
IAD
12:00a
ONT
5:47p
17h 47m
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
$198
Destination

Washington
$198