Seattle / Tacoma (SEA) to Philadelphia (PHL) flight deal in economy from $265
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
PHLPhiladelphia International Airport
Philadelphia, United States
$411 USD
-36%$265 USD
Verified about 15 hours agoOctober 2026
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Extremely Rare Availability
4% of dates checked are available within 10% of the lowest price
Sunday, October 11th, 2026
10 round-trip options
Returning
Fri, Oct 16, 2026•5 Day Trip
$392 USD
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Sat, Oct 17, 2026•6 Day Trip
$345 USD
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Sun, Oct 18, 2026•7 Day Trip
$504 USD
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Mon, Oct 19, 2026•8 Day Trip
$479 USD
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Tue, Oct 20, 2026•9 Day Trip
$386 USD
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Wed, Oct 21, 2026•10 Day Trip
$386 USD
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Thu, Oct 22, 2026•11 Day Trip
$384 USD
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Fri, Oct 23, 2026•12 Day Trip
$424 USD
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Sat, Oct 24, 2026•13 Day Trip
$386 USD
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Sun, Oct 25, 2026•14 Day Trip
$507 USD