Seattle / Tacoma (SEA) to Philadelphia (PHL) flight deal in economy from $265

United AirlinesUAUnited Airlines
Round Trip•Economy
United StatesSEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States
United StatesPHL

Philadelphia International Airport

Philadelphia, United States
$411 USD
-36%$265 USD
Verified about 11 hours ago
Extremely Rare Availability
4% of dates checked are available within 10% of the lowest price

Thursday, July 16th, 2026

10 round-trip options

Returning
Tue, Jul 21, 2026•5 Day Trip
$301 USD
Google Flights
Returning
Wed, Jul 22, 2026•6 Day Trip
$418 USD
Google Flights
Returning
Thu, Jul 23, 2026•7 Day Trip
$410 USD
Google Flights
Returning
Fri, Jul 24, 2026•8 Day Trip
$376 USD
Google Flights
Returning
Sat, Jul 25, 2026•9 Day Trip
$471 USD
Google Flights
Returning
Sun, Jul 26, 2026•10 Day Trip
$487 USD
Google Flights
Returning
Mon, Jul 27, 2026•11 Day Trip
$350 USD
Google Flights
Returning
Tue, Jul 28, 2026•12 Day Trip
$301 USD
Google Flights
Returning
Wed, Jul 29, 2026•13 Day Trip
$423 USD
Google Flights
Returning
Thu, Jul 30, 2026•14 Day Trip
$471 USD
Google Flights