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

Thursday, July 23rd, 2026

8 round-trip options

Returning
Tue, Jul 28, 2026•5 Day Trip
$499 USD
Google Flights
Returning
Wed, Jul 29, 2026•6 Day Trip
$488 USD
Google Flights
Returning
Thu, Jul 30, 2026•7 Day Trip
$504 USD
Google Flights
Returning
Fri, Jul 31, 2026•8 Day Trip
$499 USD
Google Flights
Returning
Sat, Aug 1, 2026•9 Day Trip
$526 USD
Google Flights
Returning
Sun, Aug 2, 2026•10 Day Trip
$571 USD
Google Flights
Returning
Wed, Aug 5, 2026•13 Day Trip
$478 USD
Google Flights
Returning
Thu, Aug 6, 2026•14 Day Trip
$494 USD
Google Flights