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
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Philadelphia to Ontario

(Round-trip)
Depart: Sat May 6 2017 Return: Tue May 9 2017 Trip spans 4 days
Major Airline
Major Airline
PHL
1:15a
ONT
9:05a
7h 50m
1 stop
ONT
8:45a
PHL
3:59p
7h 14m
1 stop
Depart: Thu Mar 9 2017 Return: Tue Mar 21 2017 Trip spans 12 days
American Airlines
American Airlines
PHL
1:45a
ONT
9:48a
8h 03m
1 stop
ONT
8:45a
PHL
4:01p
7h 16m
1 stop
Depart: Mon Mar 13 2017 Return: Wed Mar 15 2017 Trip spans 3 days
United
United
PHL
2:20p
ONT
11:06p
8h 46m
1 stop
ONT
4:00a
PHL
2:52p
10h 52m
1 stop
Depart: Mon Mar 20 2017 Return: Wed Mar 22 2017 Trip spans 3 days
Delta
Delta
PHL
2:19p
ONT
9:52p
7h 33m
1 stop
ONT
2:00a
PHL
10:24a
8h 24m
1 stop
Depart: Thu Jul 27 2017 Return: Mon Jul 31 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
PHL
2:05a
ONT
3:16p
13h 11m
2 stops
ONT
3:50p
PHL
9:50p
30h 00m
1 stop
Depart: Tue Mar 14 2017 Return: Wed Mar 29 2017 Trip spans 16 days
United
United
PHL
2:20a
ONT
10:51a
8h 31m
1 stop
ONT
3:15p
PHL
12:23a
9h 08m
1 stop
Depart: Tue Mar 21 2017 Return: Tue Mar 28 2017 Trip spans 8 days
American Airlines
American Airlines
PHL
9:30a
ONT
5:28p
7h 58m
1 stop
ONT
8:45a
PHL
4:01p
7h 16m
1 stop
Depart: Mon Apr 3 2017 Return: Wed Apr 12 2017 Trip spans 10 days
Delta
Delta
PHL
2:12p
ONT
9:49p
7h 37m
1 stop
ONT
2:00a
PHL
10:32a
8h 32m
1 stop
Depart: Wed Aug 23 2017 Return: Tue Aug 29 2017 Trip spans 7 days
Major Airline
Major Airline
PHL
10:05p
ONT
2:10p
16h 05m
1 stop
ONT
9:30a
PHL
4:59a
19h 29m
1 stop
Depart: Wed Mar 15 2017 Return: Tue Mar 21 2017 Trip spans 7 days
United
United
PHL
2:20p
ONT
11:06p
8h 46m
1 stop
ONT
9:30a
PHL
4:18p
6h 48m
1 stop
Depart: Wed Mar 29 2017 Return: Tue Apr 11 2017 Trip spans 14 days
American Airlines
American Airlines
PHL
1:15a
ONT
9:02a
7h 47m
1 stop
ONT
10:30a
PHL
5:39p
7h 09m
1 stop
Depart: Wed Apr 5 2017 Return: Wed Apr 12 2017 Trip spans 8 days
Delta
Delta
PHL
2:12p
ONT
9:49p
7h 37m
1 stop
ONT
2:00a
PHL
10:32a
8h 32m
1 stop
Depart: Wed Mar 1 2017 Return: Sun Mar 5 2017 Trip spans 5 days
Major Airline
Major Airline
PHL
12:00a
ONT
7:42a
7h 42m
nonstop
ONT
8:00a
PHL
9:42a
1h 42m
nonstop
Depart: Sat Mar 25 2017 Return: Tue Mar 28 2017 Trip spans 4 days
United
United
PHL
2:20p
ONT
11:06p
8h 46m
1 stop
ONT
3:15p
PHL
12:23a
9h 08m
1 stop
Depart: Tue Apr 25 2017 Return: Tue May 2 2017 Trip spans 8 days
American Airlines
American Airlines
PHL
1:15a
ONT
9:05a
7h 50m
1 stop
ONT
10:30a
PHL
5:39p
7h 09m
1 stop
Depart: Fri Apr 28 2017 Return: Wed May 3 2017 Trip spans 6 days
Delta
Delta
PHL
2:12p
ONT
9:49p
7h 37m
1 stop
ONT
2:00a
PHL
10:33a
8h 33m
1 stop
Depart: Mon Mar 27 2017 Return: Thu Mar 30 2017 Trip spans 4 days
United
United
PHL
2:20p
ONT
11:06p
8h 46m
1 stop
ONT
3:15p
PHL
12:23a
9h 08m
1 stop
Depart: Tue May 2 2017 Return: Mon May 8 2017 Trip spans 7 days
American Airlines
American Airlines
PHL
12:15p
ONT
8:45p
8h 30m
1 stop
ONT
9:15p
PHL
6:08a
8h 53m
1 stop
Depart: Tue Aug 22 2017 Return: Tue Aug 29 2017 Trip spans 8 days
Delta
Delta
PHL
12:45p
ONT
9:39p
8h 54m
1 stop
ONT
2:00a
PHL
9:00a
7h 00m
1 stop
Depart: Tue Mar 28 2017 Return: Thu Mar 30 2017 Trip spans 3 days
United
United
PHL
2:20p
ONT
11:06p
8h 46m
1 stop
ONT
3:15p
PHL
12:23a
9h 08m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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.

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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.

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Airports
Origin

Philadelphia
$308
Destination

Ontario
$308