Seattle / Tacoma (SEA) to Philadelphia (PHL) flight deal in economy from $329
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
PHLPhiladelphia International Airport
Philadelphia, United States
$402 USD
-18%$329 USD
Verified 1 day agoDecember 2026
Mon
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Good Availability
40% of dates checked are available within 10% of the lowest price
Wednesday, December 23rd, 2026
10 round-trip options
Returning
Mon, Dec 28, 2026•5 Day Trip
$846 USD
Returning
Tue, Dec 29, 2026•6 Day Trip
$889 USD
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Wed, Dec 30, 2026•7 Day Trip
$835 USD
Returning
Thu, Dec 31, 2026•8 Day Trip
$508 USD
Returning
Fri, Jan 1, 2027•9 Day Trip
$568 USD
Returning
Sat, Jan 2, 2027•10 Day Trip
$766 USD
Returning
Sun, Jan 3, 2027•11 Day Trip
$788 USD
Returning
Mon, Jan 4, 2027•12 Day Trip
$592 USD
Returning
Tue, Jan 5, 2027•13 Day Trip
$463 USD
Returning
Wed, Jan 6, 2027•14 Day Trip
$425 USD