$136 Cheap Flights from Seattle (SEA) to Philadelphia (PHL)

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Cheap Flights from Seattle - Tacoma Intl. to Philadelphia Intl.

Prices were available within the past 7 days and starts at $136 for one-way flights and $168 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Delta
Delta
JetBlue Airways
Delta
Spirit Airlines
JetBlue Airways
Spirit Airlines
Spirit Airlines
JetBlue Airways
Frontier Airlines
Frontier Airlines
Spirit Airlines
Frontier Airlines
Spirit Airlines
Spirit Airlines
Spirit Airlines
JetBlue Airways
Alaska Airlines
Spirit Airlines