Philadelphia (PHL) to Seattle / Tacoma (SEA) flight deal from $144 USD in economy class – flightdeals.net

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Alaska Airlines, Inc.

ASAlaska Airlines, Inc.

One Way•Economy

Philadelphia International Airport

Philadelphia, United States

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$254 USD

-43%$144 USD

Verified Nov 5, 2025 at 8:28 AM

December 2025

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1$439 2$214 3$144 4$144 5$144 6$144 7$144 8$144 9$144 10$144 11$144 12$144 13$144 14$144 15$144 16$144 17$214 18$214 19$254 20$379 21$309 22$309 23$309 24$214 25$214 26$309 27$379 28$379 29$439 30$309 31$309 1 2 3 4

Limited Availability

17% of dates checked are available within 10% of the lowest price

Tuesday, December 2nd, 2025

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