SEA to PHL from $133 in economy – flightdeals.net

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United Airlines

UAUnited Airlines

One Way•Economy

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

Philadelphia International Airport

Philadelphia, United States

$206 USD

-35%$133 USD

Verified about 17 hours ago

September 2026

Mon

Tue

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Sun

31$169 1$133 2$133 3$182 4$169 5$199 6$182 7$200 8$247 9$137 10$175 11$175 12$137 13$182 14$175 15$137 16$137 17$180 18$175 19$151 20$175 21$175 22$137 23$137 24$175 25$175 26$137 27$175 28$175 29$137 30$137 1$175 2$175 3$137 4$175

Limited Availability

11% of dates checked are available within 10% of the lowest price

Thursday, September 10th, 2026

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