Philadelphia (PHL) to Seattle / Tacoma (SEA) flight deal in economy from $329
PHLPhiladelphia International Airport
Philadelphia, United States
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
$396 USD
-17%$329 USD
Verified 13 days agoOctober 2026
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Good Availability
46% of dates checked are available within 10% of the lowest price
Thursday, October 8th, 2026
5 round-trip options
Returning
Tue, Oct 13, 2026•5 Day Trip
$423 USD
Returning
Wed, Oct 14, 2026•6 Day Trip
$423 USD
Returning
Fri, Oct 16, 2026•8 Day Trip
$467 USD
Returning
Sun, Oct 18, 2026•10 Day Trip
$517 USD
Returning
Thu, Oct 22, 2026•14 Day Trip
$423 USD