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

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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 November , December 2025

27 Nov - 08 Dec $ 220.00
ONT
Ontario
Frontier Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Frontier Airlines
1 STOPS
ONT
Ontario
Pick dates
24 Nov - 10 Dec $ 579.00
ONT
Ontario
Hawaiian Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Hawaiian Airlines
2 STOPS
ONT
Ontario
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18 Nov - 05 Dec $ 1,240.00
ONT
Ontario
Alaska Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Alaska Airlines
2 STOPS
ONT
Ontario
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Last minute flights from Ontario to Philadelphia

27 Nov - 01 Dec $ 548.00
ONT
Ontario
Frontier Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Frontier Airlines
1 STOPS
ONT
Ontario
Pick dates
27 Nov - 30 Nov $ 1,114.00
ONT
Ontario
United Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
United Airlines
1 STOPS
ONT
Ontario
Pick dates
26 Nov - 30 Nov $ 1,367.00
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

12:23 PM - 11:15 PM
Frontier Airlines
1 Stops
13h 22m
ONT - PHL
$ 160
Kiwi
Pick dates
6:05 AM - 12:25 PM
United Airlines
1 Stops
7h 36m
ONT - PHL
$ 220
Kiwi
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1:33 PM - 5:37 PM
United Airlines
1 Stops
6h 36m
ONT - PHL
$ 560
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)
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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.