Find Deals on Flights from Philadelphia to Ontario (PHL - 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.
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 Philadelphia to Ontario

(Round-trip)
Depart: Fri Feb 3 2017 Return: Wed Feb 8 2017 Trip spans 6 days
American Airlines
American Airlines
PHL
12:15a
ONT
8:09a
7h 54m
1 stop
ONT
1:15a
PHL
8:13a
6h 58m
1 stop
Depart: Mon Feb 6 2017 Return: Thu Feb 9 2017 Trip spans 4 days
Delta
Delta
PHL
1:11p
ONT
9:04p
7h 53m
1 stop
ONT
1:00a
PHL
9:42a
8h 42m
1 stop
Depart: Thu Feb 9 2017 Return: Sun Feb 12 2017 Trip spans 4 days
United
United
PHL
1:05p
ONT
9:59p
8h 54m
1 stop
ONT
3:10p
PHL
11:08p
7h 58m
1 stop
Depart: Tue Jan 31 2017 Return: Thu Feb 2 2017 Trip spans 3 days
Major Airline
Major Airline
PHL
12:00a
ONT
7:42a
7h 42m
nonstop
ONT
8:00a
PHL
9:42a
1h 42m
nonstop
Depart: Tue Jun 6 2017 Return: Mon Jun 12 2017 Trip spans 7 days
Alaska Airlines
Alaska Airlines
PHL
2:05a
ONT
3:30p
13h 25m
2 stops
ONT
8:00a
PHL
9:50p
13h 50m
2 stops
Depart: Sun Feb 5 2017 Return: Mon Feb 13 2017 Trip spans 9 days
American Airlines
American Airlines
PHL
12:15a
ONT
8:09a
7h 54m
1 stop
ONT
9:24a
PHL
4:33p
7h 09m
1 stop
Depart: Sun Feb 12 2017 Return: Wed Feb 15 2017 Trip spans 4 days
United
United
PHL
1:00a
ONT
10:20a
9h 20m
1 stop
ONT
3:00a
PHL
11:16a
8h 16m
1 stop
Depart: Mon Jan 30 2017 Return: Thu Feb 9 2017 Trip spans 11 days
Delta
Delta
PHL
1:11p
ONT
9:04p
7h 53m
1 stop
ONT
1:00a
PHL
9:42a
8h 42m
1 stop
Depart: Tue Feb 7 2017 Return: Wed Feb 8 2017 Trip spans 2 days
American Airlines
American Airlines
PHL
10:13a
ONT
6:13p
8h 00m
1 stop
ONT
1:15a
PHL
8:13a
6h 58m
1 stop
Depart: Mon Feb 13 2017 Return: Wed Feb 15 2017 Trip spans 3 days
United
United
PHL
1:05p
ONT
9:59p
8h 54m
1 stop
ONT
3:00a
PHL
11:16a
8h 16m
1 stop
Depart: Fri Feb 10 2017 Return: Mon Feb 13 2017 Trip spans 4 days
American Airlines
American Airlines
PHL
12:15a
ONT
8:09a
7h 54m
1 stop
ONT
2:30p
PHL
10:20p
7h 50m
1 stop
Depart: Tue Feb 14 2017 Return: Wed Feb 15 2017 Trip spans 2 days
United
United
PHL
2:15a
ONT
10:44a
8h 29m
1 stop
ONT
12:50a
PHL
11:16a
10h 26m
1 stop
Depart: Tue Apr 4 2017 Return: Tue Apr 18 2017 Trip spans 15 days
Delta
Delta
PHL
2:03p
ONT
9:47p
7h 44m
1 stop
ONT
2:00a
PHL
10:30a
8h 30m
1 stop
Depart: Sat Feb 11 2017 Return: Mon Feb 13 2017 Trip spans 3 days
American Airlines
American Airlines
PHL
10:55a
ONT
7:39p
8h 44m
1 stop
ONT
2:30p
PHL
10:20p
7h 50m
1 stop
Depart: Wed Feb 15 2017 Return: Tue Feb 21 2017 Trip spans 7 days
United
United
PHL
1:05p
ONT
9:59p
8h 54m
1 stop
ONT
2:16p
PHL
11:13p
8h 57m
1 stop
Depart: Wed Apr 5 2017 Return: Wed Apr 12 2017 Trip spans 8 days
Delta
Delta
PHL
2:03p
ONT
9:47p
7h 44m
1 stop
ONT
2:00a
PHL
10:30a
8h 30m
1 stop
Depart: Tue Feb 21 2017 Return: Fri Feb 24 2017 Trip spans 4 days
United
United
PHL
1:10p
ONT
9:59p
8h 49m
1 stop
ONT
3:10p
PHL
11:03p
7h 53m
1 stop
Depart: Sat Feb 25 2017 Return: Wed Mar 1 2017 Trip spans 5 days
American Airlines
American Airlines
PHL
10:13a
ONT
6:13p
8h 00m
1 stop
ONT
7:45a
PHL
2:54p
7h 09m
1 stop
Depart: Wed Feb 22 2017 Return: Mon Feb 27 2017 Trip spans 6 days
United
United
PHL
1:10p
ONT
9:59p
8h 49m
1 stop
ONT
3:00a
PHL
12:46p
9h 46m
1 stop
Depart: Mon Feb 27 2017 Return: Tue Feb 28 2017 Trip spans 2 days
American Airlines
American Airlines
PHL
1:15p
ONT
9:15p
8h 00m
1 stop
ONT
7:45a
PHL
2:54p
7h 09m
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

Philadelphia
$314
Destination

Ontario
$314