Philadelphia (PHL) to Seattle / Tacoma (SEA) flight deal in economy from $273

United AirlinesUAUnited Airlines
Round Trip•Economy
United StatesPHL

Philadelphia International Airport

Philadelphia, United States
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
$392 USD
-30%$273 USD
Verified about 9 hours ago
Rare Availability
8% of dates checked are available within 10% of the lowest price

Monday, June 29th, 2026

0 round-trip options

No flight details available for this date.