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Cheap flights from Philadelphia (PHL) to Boston (BOS)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Philadelphia (PHL) to Boston (BOS)

How to find the cheapest flight from Philadelphia (PHL) to Boston (BOS)
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How to find the cheapest flight from Philadelphia (PHL) to Boston (BOS)
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How to find the cheapest flight from Philadelphia (PHL) to Boston (BOS)
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Cheap flights from Philadelphia to Boston in December 2025 , January 2026

22 Dec - 10 Jan $ 224.00
PHL
Philadelphia
Spirit Airlines
1 STOPS
BOS
Boston
BOS
Boston
Spirit Airlines
1 STOPS
PHL
Philadelphia
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31 Dec - 01 Jan $ 252.00
PHL
Philadelphia
United Airlines
1 STOPS
BOS
Boston
BOS
Boston
United Airlines
1 STOPS
PHL
Philadelphia
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23 Dec - 04 Jan $ 763.00
PHL
Philadelphia
Frontier Airlines
1 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
PHL
Philadelphia
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Last minute flights from Philadelphia to Boston

24 Dec - 31 Dec $ 271.00
PHL
Philadelphia
United Airlines
1 STOPS
BOS
Boston
BOS
Boston
United Airlines
1 STOPS
PHL
Philadelphia
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20 Dec - 31 Dec $ 289.00
PHL
Philadelphia
Frontier Airlines
1 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
PHL
Philadelphia
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25 Dec - 31 Dec $ 308.00
PHL
Philadelphia
United Airlines
1 STOPS
BOS
Boston
BOS
Boston
United Airlines
1 STOPS
PHL
Philadelphia
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One-way flights to Boston from Philadelphia

7:18 PM - 9:23 AM
Frontier Airlines
1 Stops
16h 9m
PHL - BOS
$ 138
Kiwi
Pick dates
10:39 AM - 12:43 PM
United Airlines
1 Stops
3h 41m
PHL - BOS
$ 154
Kiwi
Pick dates
10:39 AM - 12:43 PM
United Airlines
1 Stops
3h 41m
PHL - BOS
$ 165
Kiwi
Pick dates

How to find the cheapest flight from Philadelphia (PHL) to Boston (BOS)

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