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 12 days agoAugust 2026
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Good Availability
46% of dates checked are available within 10% of the lowest price
Sunday, August 9th, 2026
8 round-trip options
Returning
Fri, Aug 14, 2026•5 Day Trip
$373 USD
Returning
Sat, Aug 15, 2026•6 Day Trip
$471 USD
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Sun, Aug 16, 2026•7 Day Trip
$450 USD
Returning
Mon, Aug 17, 2026•8 Day Trip
$373 USD
Returning
Tue, Aug 18, 2026•9 Day Trip
$367 USD
Returning
Wed, Aug 19, 2026•10 Day Trip
$329 USD
Returning
Sat, Aug 22, 2026•13 Day Trip
$367 USD
Returning
Sun, Aug 23, 2026•14 Day Trip
$383 USD