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

Monday, November 2nd, 2026

6 round-trip options

Returning
Sun, Nov 8, 2026•6 Day Trip
$329 USD
Google Flights
Returning
Tue, Nov 10, 2026•8 Day Trip
$329 USD
Google Flights
Returning
Thu, Nov 12, 2026•10 Day Trip
$329 USD
Google Flights
Returning
Sat, Nov 14, 2026•12 Day Trip
$329 USD
Google Flights
Returning
Sun, Nov 15, 2026•13 Day Trip
$329 USD
Google Flights
Returning
Mon, Nov 16, 2026•14 Day Trip
$329 USD
Google Flights