SEA to PHL from $329 in economy

AAAmerican Airlines

Round Trip•Economy

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

PHL

Philadelphia International Airport

Philadelphia, United States

$396 USD

-17%$329 USD

Verified 14 days ago

September 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$329 1$329 2$329 3$363 4$329 5$357 6$363 7$383 8$329 9$329 10$329 11$329 12$363 13$329 14$329 15$329 16$329 17$329 18$329 19$329 20$329 21$329 22$329 23$329 24$329 25$329 26$329 27$329 28$329 29$329 30$329 1$329 2$329 3$329 4$329

Good Availability

48% of dates checked are available within 10% of the lowest price

Saturday, September 12th, 2026

6 round-trip options

Returning

Sat, Sep 19, 2026•7 Day Trip

$363 USD

Google Flights

Returning

Sun, Sep 20, 2026•8 Day Trip

$363 USD

Google Flights

Returning

Tue, Sep 22, 2026•10 Day Trip

$363 USD

Google Flights

Returning

Thu, Sep 24, 2026•12 Day Trip

$363 USD

Google Flights

Returning

Fri, Sep 25, 2026•13 Day Trip

$363 USD

Google Flights

Returning

Sat, Sep 26, 2026•14 Day Trip

$363 USD

Google Flights

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

Seattle–Tacoma International Airport

Philadelphia International Airport

September 2026

Saturday, September 12th, 2026