Find Cheap Flights from Ontario to Baltimore/Washington (ONT - BWI)

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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Ontario to Baltimore/Washington

(Round-trip)
Depart: Sat Sep 2 2017 Return: Sun Sep 3 2017 Trip spans 2 days
Delta
Delta
ONT
12:00a
BWI
7:01a
7h 01m
1 stop
BWI
12:00a
ONT
7:27a
7h 27m
1 stop
Depart: Mon Aug 7 2017 Return: Tue Aug 15 2017 Trip spans 9 days
United
United
ONT
12:00a
BWI
8:39a
8h 39m
1 stop
BWI
12:00a
ONT
8:15a
8h 15m
1 stop
Depart: Wed Aug 16 2017 Return: Sun Aug 20 2017 Trip spans 5 days
Multiple Airlines
Multiple Airlines
ONT
12:00a
BWI
8:25a
8h 25m
1 stop
BWI
12:00a
ONT
6:25a
6h 25m
1 stop
Depart: Thu Aug 3 2017 Return: Tue Aug 8 2017 Trip spans 6 days
American Airlines
American Airlines
ONT
12:00a
BWI
7:13a
7h 13m
1 stop
BWI
12:00a
ONT
7:08a
7h 08m
1 stop
Depart: Tue Aug 29 2017 Return: Sun Sep 3 2017 Trip spans 6 days
Delta
Delta
ONT
12:00a
BWI
7:04a
7h 04m
1 stop
BWI
12:00a
ONT
7:27a
7h 27m
1 stop
Depart: Sat Aug 5 2017 Return: Tue Aug 8 2017 Trip spans 4 days
American Airlines
American Airlines
ONT
12:00a
BWI
7:13a
7h 13m
1 stop
BWI
12:00a
ONT
7:08a
7h 08m
1 stop
Depart: Fri Aug 18 2017 Return: Sun Aug 20 2017 Trip spans 3 days
Multiple Airlines
Multiple Airlines
ONT
12:00a
BWI
8:08a
8h 08m
1 stop
BWI
12:00a
ONT
6:25a
6h 25m
1 stop
Depart: Thu Aug 3 2017 Return: Thu Aug 10 2017 Trip spans 8 days
United
United
ONT
12:00a
BWI
6:52a
6h 52m
1 stop
BWI
12:00a
ONT
7:16a
7h 16m
1 stop
Depart: Thu Aug 3 2017 Return: Tue Aug 8 2017 Trip spans 6 days
American Airlines
American Airlines
ONT
12:00a
BWI
7:13a
7h 13m
1 stop
BWI
12:00a
ONT
7:08a
7h 08m
1 stop
Depart: Wed Nov 8 2017 Return: Mon Nov 13 2017 Trip spans 6 days
Delta
Delta
ONT
12:00a
BWI
6:55a
6h 55m
1 stop
BWI
12:00a
ONT
9:09a
9h 09m
1 stop
Depart: Mon Aug 7 2017 Return: Sat Aug 12 2017 Trip spans 6 days
American Airlines
American Airlines
ONT
12:00a
BWI
7:03a
7h 03m
1 stop
BWI
12:00a
ONT
7:08a
7h 08m
1 stop
Depart: Thu Aug 31 2017 Return: Sun Sep 3 2017 Trip spans 4 days
Multiple Airlines
Multiple Airlines
ONT
12:00a
BWI
6:49a
6h 49m
1 stop
BWI
12:00a
ONT
7:27a
7h 27m
1 stop
Depart: Thu Aug 3 2017 Return: Mon Aug 7 2017 Trip spans 5 days
United
United
ONT
12:00a
BWI
6:52a
6h 52m
1 stop
BWI
12:00a
ONT
7:28a
7h 28m
1 stop
Depart: Wed Aug 30 2017 Return: Sun Sep 3 2017 Trip spans 5 days
Delta
Delta
ONT
12:00a
BWI
7:04a
7h 04m
1 stop
BWI
12:00a
ONT
7:27a
7h 27m
1 stop
Depart: Thu Aug 3 2017 Return: Sat Aug 5 2017 Trip spans 3 days
American Airlines
American Airlines
ONT
12:00a
BWI
7:13a
7h 13m
1 stop
BWI
12:00a
ONT
7:08a
7h 08m
1 stop
Depart: Thu Aug 31 2017 Return: Sun Sep 3 2017 Trip spans 4 days
Delta
Delta
ONT
12:00a
BWI
7:04a
7h 04m
1 stop
BWI
12:00a
ONT
7:27a
7h 27m
1 stop
Depart: Fri Aug 4 2017 Return: Thu Aug 10 2017 Trip spans 7 days
United
United
ONT
12:00a
BWI
8:39a
8h 39m
1 stop
BWI
12:00a
ONT
9:15a
9h 15m
1 stop
Depart: Thu Sep 14 2017 Return: Sun Sep 17 2017 Trip spans 4 days
Multiple Airlines
Multiple Airlines
ONT
12:00a
BWI
6:51a
6h 51m
1 stop
BWI
12:00a
ONT
5:44a
29h 44m
2 stops
Depart: Tue Aug 22 2017 Return: Tue Sep 12 2017 Trip spans 22 days
Delta
Delta
ONT
12:00a
BWI
11:53a
11h 53m
2 stops
BWI
12:00a
ONT
9:10a
9h 10m
2 stops
Depart: Fri Aug 4 2017 Return: Tue Aug 8 2017 Trip spans 5 days
American Airlines
American Airlines
ONT
12:00a
BWI
7:13a
7h 13m
1 stop
BWI
12:00a
ONT
7:08a
7h 08m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

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

We compile tonnes of data for you
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.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Ontario
$339
Destination

Baltimore
$339