Find Deals on 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: Mon Mar 7 2016 Return: Tue Mar 8 2016 Trip spans 2 days
United
United
ONT
3:26p
IAD
11:00p
7h 34m
1 stop
IAD
3:15a
ONT
12:32p
9h 17m
1 stop
Depart: Tue Mar 8 2016 Return: Wed Mar 9 2016 Trip spans 2 days
United
United
ONT
3:26p
IAD
11:29p
8h 03m
1 stop
IAD
3:15a
ONT
12:32p
9h 17m
1 stop
Depart: Wed Mar 2 2016 Return: Sat Mar 5 2016 Trip spans 4 days
United
United
ONT
12:43a
IAD
9:50a
9h 07m
1 stop
IAD
1:46p
ONT
9:55p
8h 09m
1 stop
Depart: Thu Mar 3 2016 Return: Wed Mar 9 2016 Trip spans 7 days
United
United
ONT
4:35a
IAD
1:09p
8h 34m
1 stop
IAD
1:37a
ONT
10:19a
8h 42m
1 stop
Depart: Sat Mar 5 2016 Return: Sun Mar 6 2016 Trip spans 2 days
United
United
ONT
3:42a
IAD
10:55a
7h 13m
1 stop
IAD
6:58a
ONT
4:21p
9h 23m
1 stop
Depart: Wed Mar 9 2016 Return: Sat Mar 12 2016 Trip spans 4 days
United
United
ONT
3:39a
IAD
11:00a
7h 21m
1 stop
IAD
1:29a
ONT
10:05a
8h 36m
1 stop
Depart: Tue Apr 5 2016 Return: Wed Apr 6 2016 Trip spans 2 days
United
United
ONT
3:59p
IAD
11:52p
7h 53m
1 stop
IAD
4:52a
ONT
3:16p
10h 24m
1 stop
Depart: Thu Feb 25 2016 Return: Sat Mar 5 2016 Trip spans 10 days
American Airlines
American Airlines
ONT
2:00a
IAD
9:37a
7h 37m
1 stop
IAD
1:17p
ONT
9:07p
7h 50m
1 stop
Depart: Fri Feb 26 2016 Return: Wed Mar 2 2016 Trip spans 6 days
American Airlines
American Airlines
ONT
6:05a
IAD
2:41p
8h 36m
1 stop
IAD
1:17p
ONT
9:07p
7h 50m
1 stop
Depart: Sat Feb 27 2016 Return: Wed Mar 2 2016 Trip spans 5 days
American Airlines
American Airlines
ONT
12:50a
IAD
9:37a
8h 47m
1 stop
IAD
1:17p
ONT
9:07p
7h 50m
1 stop
Depart: Mon Feb 29 2016 Return: Sat Mar 5 2016 Trip spans 6 days
United
United
ONT
1:44p
IAD
11:25p
9h 41m
1 stop
IAD
1:46p
ONT
9:55p
8h 09m
1 stop
Depart: Tue Mar 1 2016 Return: Sat Mar 5 2016 Trip spans 5 days
United
United
ONT
1:44p
IAD
11:25p
9h 41m
1 stop
IAD
1:46p
ONT
9:55p
8h 09m
1 stop
Depart: Fri Mar 4 2016 Return: Sat Mar 5 2016 Trip spans 2 days
United
United
ONT
1:35a
IAD
8:55a
7h 20m
1 stop
IAD
1:46p
ONT
9:55p
8h 09m
1 stop
Depart: Thu Mar 10 2016 Return: Sat Mar 12 2016 Trip spans 3 days
United
United
ONT
3:39a
IAD
11:00a
7h 21m
1 stop
IAD
1:29a
ONT
10:05a
8h 36m
1 stop
Depart: Tue Mar 15 2016 Return: Tue Mar 29 2016 Trip spans 15 days
United
United
ONT
4:26p
IAD
12:29a
8h 03m
1 stop
IAD
2:37a
ONT
1:32p
10h 55m
1 stop
Depart: Wed Mar 16 2016 Return: Tue Mar 22 2016 Trip spans 7 days
United
United
ONT
3:01p
IAD
12:35a
9h 34m
1 stop
IAD
1:15p
ONT
10:13p
8h 58m
1 stop
Depart: Tue Mar 22 2016 Return: Tue Mar 29 2016 Trip spans 8 days
United
United
ONT
3:01p
IAD
12:29a
9h 28m
1 stop
IAD
4:54a
ONT
1:32p
8h 38m
1 stop
Depart: Mon Apr 4 2016 Return: Wed Apr 13 2016 Trip spans 10 days
United
United
ONT
8:49a
IAD
6:00p
9h 11m
1 stop
IAD
10:51a
ONT
7:25p
8h 34m
1 stop
Depart: Wed Apr 6 2016 Return: Wed Apr 13 2016 Trip spans 8 days
United
United
ONT
4:46p
IAD
12:24a
7h 38m
1 stop
IAD
1:20p
ONT
10:56p
9h 36m
1 stop
Depart: Fri Apr 15 2016 Return: Mon Apr 18 2016 Trip spans 4 days
United
United
ONT
8:36a
IAD
5:58p
9h 22m
1 stop
IAD
2:47a
ONT
11:06a
8h 19m
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?
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Airports
Origin

Ontario
$286
Destination

Washington
$286