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Cheap flights from Ontario (ONT) to Philadelphia (PHL)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Ontario (ONT) to Philadelphia (PHL)

How to find the cheapest flight from Ontario (ONT) to Philadelphia (PHL)
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How to find the cheapest flight from Ontario (ONT) to Philadelphia (PHL)
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How to find the cheapest flight from Ontario (ONT) to Philadelphia (PHL)
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Cheap flights from Ontario to Philadelphia in April , May 2025

29 Apr - 07 May $ 543.00
ONT
Ontario
United Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
United Airlines
1 STOPS
ONT
Ontario
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23 Apr - 03 May $ 626.00
ONT
Ontario
Alaska Airlines
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Alaska Airlines
1 STOPS
ONT
Ontario
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16 Apr - 14 May $ 1,768.00
ONT
Ontario
Hawaiian Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Hawaiian Airlines
1 STOPS
ONT
Ontario
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Last minute flights from Ontario to Philadelphia

25 Apr - 30 Apr $ 705.00
ONT
Ontario
United Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
United Airlines
1 STOPS
ONT
Ontario
Pick dates
26 Apr - 30 Apr $ 750.00
ONT
Ontario
United Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
United Airlines
1 STOPS
ONT
Ontario
Pick dates
17 Apr - 30 Apr $ 829.00
ONT
Ontario
United Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
United Airlines
1 STOPS
ONT
Ontario
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One-way flights to Philadelphia from Ontario

9:56 AM - 9:29 PM
Alaska Airlines
2 Stops
16h 48m
ONT - PHL
$ 325
Kiwi
Pick dates
6:10 AM - 12:36 PM
United Airlines
1 Stops
7h 51m
ONT - PHL
$ 327
Kiwi
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1:35 PM - 5:59 PM
United Airlines
1 Stops
7h
ONT - PHL
$ 430
Kiwi
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How to find the cheapest flight from Ontario (ONT) to Philadelphia (PHL)

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How to find the cheapest flight from Ontario (ONT) to Philadelphia (PHL)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Ontario (ONT) to Philadelphia (PHL)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.