Seattle / Tacoma (SEA) to Philadelphia (PHL) flight deal in economy from $329

Saturday, November 21st, 2026

9 round-trip options

Returning
Thu, Nov 26, 20265 Day Trip
$373 USD
Returning
Fri, Nov 27, 20266 Day Trip
$456 USD
Returning
Sat, Nov 28, 20267 Day Trip
$800 USD
Returning
Mon, Nov 30, 20269 Day Trip
$606 USD
Returning
Tue, Dec 1, 202610 Day Trip
$469 USD
Returning
Wed, Dec 2, 202611 Day Trip
$373 USD
Returning
Thu, Dec 3, 202612 Day Trip
$373 USD
Returning
Fri, Dec 4, 202613 Day Trip
$373 USD
Returning
Sat, Dec 5, 202614 Day Trip
$373 USD