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Cheap flights from Seattle (BFI) to Philadelphia (PHL)

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How to find the cheapest flight from Seattle (BFI) to Philadelphia (PHL)

How to find the cheapest flight from Seattle (BFI) to Philadelphia (PHL)
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How to find the cheapest flight from Seattle (BFI) to Philadelphia (PHL)
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How to find the cheapest flight from Seattle (BFI) to Philadelphia (PHL)
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Cheap flights from Seattle to Philadelphia in January , February 2026

26 Jan - 05 Feb $ 929.00
BFI
Seattle
Air Excursions
3 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
26 Jan - 05 Feb $ 940.00
BFI
Seattle
Air Excursions
3 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
26 Jan - 03 Feb $ 964.00
BFI
Seattle
Air Excursions
3 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Excursions
3 STOPS
BFI
Seattle
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Last minute flights from Seattle to Philadelphia

26 Jan - 02 Feb $ 1,050.00
BFI
Seattle
Air Excursions
3 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
26 Jan - 01 Feb $ 1,147.00
BFI
Seattle
Air Excursions
3 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
26 Jan - 01 Feb $ 1,157.00
BFI
Seattle
Air Excursions
3 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Excursions
3 STOPS
BFI
Seattle
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One-way flights to Philadelphia from Seattle

5:25 PM - 9:06 AM
Frontier Airlines
3 Stops
38h 49m
BFI - PHL
$ 448
Kiwi
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8:05 AM - 12:47 PM
Frontier Airlines
3 Stops
28h 36m
BFI - PHL
$ 501
Kiwi
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8:05 AM - 8:30 AM
Spirit Airlines
3 Stops
24h 9m
BFI - PHL
$ 511
Kiwi
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How to find the cheapest flight from Seattle (BFI) to Philadelphia (PHL)

Related info for your journey
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How to find the cheapest flight from Seattle (BFI) to Philadelphia (PHL)
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 Seattle (BFI) to Philadelphia (PHL)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.