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

Monday, September 7th, 2026

6 round-trip options

Returning
Mon, Sep 14, 2026•7 Day Trip
$383 USD
Google Flights
Returning
Tue, Sep 15, 2026•8 Day Trip
$383 USD
Google Flights
Returning
Thu, Sep 17, 2026•10 Day Trip
$383 USD
Google Flights
Returning
Sat, Sep 19, 2026•12 Day Trip
$383 USD
Google Flights
Returning
Sun, Sep 20, 2026•13 Day Trip
$383 USD
Google Flights
Returning
Mon, Sep 21, 2026•14 Day Trip
$383 USD
Google Flights