Philadelphia (PHL) to Seattle / Tacoma (SEA) flight deal in economy from $137

United AirlinesUAUnited Airlines
One Way•Economy
United StatesPHL

Philadelphia International Airport

Philadelphia, United States
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
$206 USD
-33%$137 USD
Verified about 8 hours ago
Limited Availability
11% of dates checked are available within 10% of the lowest price

Sunday, August 23rd, 2026

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