Philadelphia (PHL) to Seattle / Tacoma (SEA) flight deal in economy from $337
PHLPhiladelphia International Airport
Philadelphia, United States
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
$417 USD
-19%$337 USD
Verified 1 day agoOctober 2026
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Good Availability
57% of dates checked are available within 10% of the lowest price
Monday, October 5th, 2026
2 round-trip options
Returning
Sun, Oct 11, 2026•6 Day Trip
$422 USD
Returning
Mon, Oct 12, 2026•7 Day Trip
$337 USD