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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 December 2025 , January 2026

25 Dec - 08 Jan $ 438.00
ONT
Ontario
United Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
United Airlines
1 STOPS
ONT
Ontario
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24 Dec - 11 Jan $ 737.00
ONT
Ontario
Hawaiian Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Hawaiian Airlines
1 STOPS
ONT
Ontario
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17 Dec - 06 Jan $ 807.00
ONT
Ontario
Alaska Airlines
1 STOPS
PHL
Philadelphia
PHL
Philadelphia
Alaska Airlines
1 STOPS
ONT
Ontario
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Last minute flights from Ontario to Philadelphia

25 Dec - 01 Jan $ 365.00
ONT
Ontario
Frontier Airlines
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Frontier Airlines
2 STOPS
ONT
Ontario
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25 Dec - 31 Dec $ 827.00
ONT
Ontario
United Airlines
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
United Airlines
1 STOPS
ONT
Ontario
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17 Dec - 31 Dec $ 1,161.00
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

5:05 AM - 10:11 AM
United Airlines
1 Stops
7h 41m
ONT - PHL
$ 213
Kiwi
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5:05 AM - 2:25 PM
United Airlines
2 Stops
9h 23m
ONT - PHL
$ 217
Kiwi
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1:34 PM - 5:50 PM
United Airlines
1 Stops
6h 48m
ONT - PHL
$ 527
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)
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