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

Home Premium Fare Deals About

United Airlines

UAUnited Airlines

One Way•Economy

Philadelphia International Airport

Philadelphia, United States

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$210 USD

-37%$133 USD

Verified 1 day ago

December 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$553 1$347 2$274 3$189 4$175 5$175 6$175 7$180 8$175 9$175 10$175 11$175 12$175 13$175 14$175 15$200 16$236 17$224 18$230 19$223 20$175 21$308 22$175 23$189 24$224 25$308 26$476 27$594 28$282 29$315 30$285 31$271 1$268 2$387 3$375

Limited Availability

13% of dates checked are available within 10% of the lowest price

Friday, December 4th, 2026

Outbound Flights

·

→

·

→

·

→