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

Sunday, July 19th, 2026

6 round-trip options

Returning
Sat, Jul 25, 2026•6 Day Trip
$500 USD
Google Flights
Returning
Sun, Jul 26, 2026•7 Day Trip
$511 USD
Google Flights
Returning
Tue, Jul 28, 2026•9 Day Trip
$500 USD
Google Flights
Returning
Wed, Jul 29, 2026•10 Day Trip
$510 USD
Google Flights
Returning
Thu, Jul 30, 2026•11 Day Trip
$521 USD
Google Flights
Returning
Fri, Jul 31, 2026•12 Day Trip
$521 USD
Google Flights