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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 2026

24 Nov - 18 Dec $ 469.00
ONT
Ontario
Frontier Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Frontier Airlines
1 STOPS
ONT
Ontario
Pick dates
14 Nov - 09 Dec $ 516.00
ONT
Ontario
Alaska Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Alaska Airlines
1 STOPS
ONT
Ontario
Pick dates
18 Nov - 09 Dec $ 517.00
ONT
Ontario
Alaska Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Alaska Airlines
1 STOPS
ONT
Ontario
Pick dates

Last minute flights from Ontario to Philadelphia

24 Nov - 01 Dec $ 516.00
ONT
Ontario
Frontier Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Frontier Airlines
1 STOPS
ONT
Ontario
Pick dates
18 Nov - 01 Dec $ 541.00
ONT
Ontario
Frontier Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Frontier Airlines
1 STOPS
ONT
Ontario
Pick dates
18 Nov - 30 Nov $ 1,015.00
ONT
Ontario
Alaska Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Alaska Airlines
1 STOPS
ONT
Ontario
Pick dates

One-way flights to Philadelphia from Ontario

4:13 PM - 10:19 PM
Frontier Airlines
1 Stops
10h 48m
ONT - PHL
$ 255
Kiwi
Pick dates
4:09 PM - 9:28 PM
Alaska Airlines
1 Stops
10h 23m
ONT - PHL
$ 305
Kiwi
Pick dates
4:09 PM - 9:28 PM
Alaska Airlines
1 Stops
10h 23m
ONT - PHL
$ 307
Kiwi
Pick dates

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.