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

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0 Children (2~11)
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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 August , September 2026

31 Aug - 06 Sep $ 957.00
BFI
Seattle
Air Excursions
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Excursions
2 STOPS
BFI
Seattle
Pick dates
28 Aug - 06 Sep $ 957.00
BFI
Seattle
Air Excursions
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Excursions
2 STOPS
BFI
Seattle
Pick dates
25 Aug - 06 Sep $ 1,021.00
BFI
Seattle
Air Excursions
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Excursions
2 STOPS
BFI
Seattle
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Last minute flights from Seattle to Philadelphia

28 Aug - 31 Aug $ 988.00
BFI
Seattle
Air Excursions
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
28 Aug - 31 Aug $ 997.00
BFI
Seattle
Air Excursions
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Excursions
2 STOPS
BFI
Seattle
Pick dates
25 Aug - 31 Aug $ 1,061.00
BFI
Seattle
Air Excursions
2 STOPS
PHL
Philadelphia
PHL
Philadelphia
Air Excursions
2 STOPS
BFI
Seattle
Pick dates

One-way flights to Philadelphia from Seattle

2:45 PM - 10:43 PM
Frontier Airlines
2 Stops
12h 45m
BFI - PHL
$ 499
Kiwi
Pick dates
2:35 PM - 10:43 PM
Frontier Airlines
2 Stops
12h 55m
BFI - PHL
$ 499
Kiwi
Pick dates
2:45 PM - 11:59 PM
Frontier Airlines
2 Stops
11h 54m
BFI - PHL
$ 554
Kiwi
Pick dates

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.