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

American AirlinesAAAmerican Airlines
Round Trip•Economy
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
United StatesPHL

Philadelphia International Airport

Philadelphia, United States
$396 USD
-17%$329 USD
Verified 14 days ago
Good Availability
48% of dates checked are available within 10% of the lowest price

Thursday, July 16th, 2026

6 round-trip options

Returning
Wed, Jul 22, 2026•6 Day Trip
$458 USD
Google Flights
Returning
Thu, Jul 23, 2026•7 Day Trip
$551 USD
Google Flights
Returning
Sat, Jul 25, 2026•9 Day Trip
$458 USD
Google Flights
Returning
Sun, Jul 26, 2026•10 Day Trip
$469 USD
Google Flights
Returning
Mon, Jul 27, 2026•11 Day Trip
$469 USD
Google Flights
Returning
Tue, Jul 28, 2026•12 Day Trip
$458 USD
Google Flights