PHL to SEA from $329 in economy – flightdeals.net

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American Airlines

AAAmerican Airlines

Round Trip•Economy

Philadelphia International Airport

Philadelphia, United States

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$396 USD

-17%$329 USD

Verified 13 days ago

September 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$329 1$329 2$329 3$329 4$329 5$329 6$363 7$329 8$329 9$329 10$329 11$329 12$329 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

46% of dates checked are available within 10% of the lowest price

Sunday, September 6th, 2026

5 round-trip options

Returning

Fri, Sep 11, 2026•5 Day Trip

$363 USD

Returning

Sat, Sep 12, 2026•6 Day Trip

$397 USD

Returning

Mon, Sep 14, 2026•8 Day Trip

$363 USD

Returning

Wed, Sep 16, 2026•10 Day Trip

$363 USD

Returning

Sun, Sep 20, 2026•14 Day Trip

$363 USD