Seattle / Tacoma (SEA) to Philadelphia (PHL) flight deal in economy from $137

United AirlinesUAUnited Airlines
One Way•Economy
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
United StatesPHL

Philadelphia International Airport

Philadelphia, United States
$193 USD
-29%$137 USD
Verified about 13 hours ago
Rare Availability
9% of dates checked are available within 10% of the lowest price

Thursday, June 11th, 2026

No flight details available for this date.