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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 April , May 2026

20 Apr - 24 May $ 208.00
PHL
Philadelphia
Allegiant Air
1 STOPS
BOS
Boston
BOS
Boston
Allegiant Air
1 STOPS
PHL
Philadelphia
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09 Apr - 09 May $ 463.00
PHL
Philadelphia
Alaska Airlines
1 STOPS
BOS
Boston
BOS
Boston
Alaska Airlines
1 STOPS
PHL
Philadelphia
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08 Apr - 08 May $ 495.00
PHL
Philadelphia
Alaska Airlines
1 STOPS
BOS
Boston
BOS
Boston
Alaska Airlines
1 STOPS
PHL
Philadelphia
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Last minute flights from Philadelphia to Boston

20 Apr - 30 Apr $ 230.00
PHL
Philadelphia
Frontier Airlines
1 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
PHL
Philadelphia
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09 Apr - 01 May $ 542.00
PHL
Philadelphia
Alaska Airlines
1 STOPS
BOS
Boston
BOS
Boston
Alaska Airlines
1 STOPS
PHL
Philadelphia
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08 Apr - 30 Apr $ 725.00
PHL
Philadelphia
Alaska Airlines
1 STOPS
BOS
Boston
BOS
Boston
Alaska Airlines
1 STOPS
PHL
Philadelphia
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One-way flights to Boston from Philadelphia

5:00 AM - 1:55 PM
Spirit Airlines
1 Stops
11h 54m
PHL - BOS
$ 82
Kiwi
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3:23 PM - 6:42 PM
Spirit Airlines
1 Stops
5h 37m
PHL - BOS
$ 87
Kiwi
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10:33 AM - 12:59 PM
United Airlines
1 Stops
4h 9m
PHL - BOS
$ 239
Kiwi
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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)
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.