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 6 hours ago
Extremely Rare Availability
4% of dates checked are available within 10% of the lowest price

Monday, June 8th, 2026

10 round-trip options

Returning
Sat, Jun 13, 2026•5 Day Trip
$468 USD
Google Flights
Returning
Sun, Jun 14, 2026•6 Day Trip
$531 USD
Google Flights
Returning
Mon, Jun 15, 2026•7 Day Trip
$531 USD
Google Flights
Returning
Tue, Jun 16, 2026•8 Day Trip
$494 USD
Google Flights
Returning
Wed, Jun 17, 2026•9 Day Trip
$468 USD
Google Flights
Returning
Thu, Jun 18, 2026•10 Day Trip
$867 USD
Google Flights
Returning
Fri, Jun 19, 2026•11 Day Trip
$464 USD
Google Flights
Returning
Sat, Jun 20, 2026•12 Day Trip
$398 USD
Google Flights
Returning
Sun, Jun 21, 2026•13 Day Trip
$482 USD
Google Flights
Returning
Mon, Jun 22, 2026•14 Day Trip
$587 USD
Google Flights