Find Cheap Flights from Ontario to Philadelphia (ONT - PHL)

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 Philadelphia

(Round-trip)
Depart: Wed Dec 6 2017 Return: Tue Dec 19 2017 Trip spans 14 days
Frontier
Frontier
ONT
12:00a
PHL
9:02a
9h 02m
1 stop
PHL
12:00a
ONT
3:45p
15h 45m
1 stop
Depart: Mon Mar 12 2018 Return: Wed Mar 14 2018 Trip spans 3 days
United
United
ONT
12:00a
PHL
7:40a
7h 40m
1 stop
PHL
12:00a
ONT
8:27a
8h 27m
1 stop
Depart: Wed Nov 8 2017 Return: Tue Nov 14 2017 Trip spans 7 days
Frontier
Frontier
ONT
12:00a
PHL
9:02a
9h 02m
1 stop
PHL
12:00a
ONT
3:07p
15h 07m
1 stop
Depart: Wed Dec 13 2017 Return: Thu Jan 4 2018 Trip spans 23 days
Frontier
Frontier
ONT
12:00a
PHL
9:24a
9h 24m
1 stop
PHL
12:00a
ONT
3:45p
15h 45m
1 stop
Depart: Thu Oct 26 2017 Return: Sun Oct 29 2017 Trip spans 4 days
American Airlines
American Airlines
ONT
12:00a
PHL
6:59a
6h 59m
1 stop
PHL
12:00a
ONT
8:14a
8h 14m
1 stop
Depart: Wed Jan 10 2018 Return: Tue Jan 16 2018 Trip spans 7 days
Frontier
Frontier
ONT
12:00a
PHL
9:59a
9h 59m
1 stop
PHL
12:00a
ONT
3:45p
15h 45m
1 stop
Depart: Sun Apr 29 2018 Return: Sat May 5 2018 Trip spans 7 days
Frontier
Frontier
ONT
12:00a
PHL
1:44a
25h 44m
2 stops
PHL
12:00a
ONT
5:42p
17h 42m
1 stop
Depart: Wed Nov 15 2017 Return: Tue Nov 28 2017 Trip spans 14 days
Frontier
Frontier
ONT
12:00a
PHL
9:02a
9h 02m
1 stop
PHL
12:00a
ONT
3:07p
15h 07m
1 stop
Depart: Fri Feb 9 2018 Return: Tue Feb 13 2018 Trip spans 5 days
Frontier
Frontier
ONT
12:00a
PHL
9:59a
9h 59m
1 stop
PHL
12:00a
ONT
2:05p
14h 05m
1 stop
Depart: Fri Nov 10 2017 Return: Sun Nov 12 2017 Trip spans 3 days
Frontier
Frontier
ONT
12:00a
PHL
9:02a
9h 02m
1 stop
PHL
12:00a
ONT
3:07p
15h 07m
1 stop
Depart: Fri Apr 6 2018 Return: Mon Apr 9 2018 Trip spans 4 days
Frontier
Frontier
ONT
12:00a
PHL
10:16a
10h 16m
2 stops
PHL
12:00a
ONT
5:48p
17h 48m
1 stop
Depart: Fri Oct 27 2017 Return: Sun Oct 29 2017 Trip spans 3 days
Frontier
Frontier
ONT
12:00a
PHL
10:04a
10h 04m
1 stop
PHL
12:00a
ONT
3:03p
15h 03m
1 stop
Depart: Thu Mar 15 2018 Return: Sun Mar 18 2018 Trip spans 4 days
Frontier
Frontier
ONT
12:00a
PHL
2:12a
26h 12m
2 stops
PHL
12:00a
ONT
3:15p
15h 15m
2 stops
* 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?
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

Ontario
$251
Destination

Philadelphia
$251