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

American AirlinesAAAmerican Airlines
Round Trip•Economy
United StatesPHL

Philadelphia International Airport

Philadelphia, United States
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
$396 USD
-17%$329 USD
Verified 13 days ago
Good Availability
46% of dates checked are available within 10% of the lowest price

Wednesday, December 30th, 2026

6 round-trip options

Returning
Tue, Jan 5, 2027•6 Day Trip
$734 USD
Google Flights
Returning
Thu, Jan 7, 2027•8 Day Trip
$734 USD
Google Flights
Returning
Sat, Jan 9, 2027•10 Day Trip
$739 USD
Google Flights
Returning
Mon, Jan 11, 2027•12 Day Trip
$739 USD
Google Flights
Returning
Tue, Jan 12, 2027•13 Day Trip
$739 USD
Google Flights
Returning
Wed, Jan 13, 2027•14 Day Trip
$739 USD
Google Flights