$209 Cheap American Airlines flights Philadelphia (PHL) to Seattle (SEA)

View $209 flight on Thu, Jul 23, 2026Opens in a new window

$209 Cheap American Airlines flights Philadelphia (PHL) to Seattle (SEA)

Prices were available within the past 7 days and start at $209 for one-way flights and $407 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Jul 23 - Fri, Jul 31
PHL
Philadelphia
SEA
Seattle
$407 Roundtrip, found 12 hours ago
$407
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Thu, Jul 23 from Philadelphia to Seattle, returning Fri, Jul 31, priced at $407 found 12 hours ago
American Airlines
Thu, Jul 23 - Fri, Jul 31
PHL
Philadelphia
SEA
Seattle
$432 Roundtrip, found 12 hours ago
$432
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Thu, Jul 23 from Philadelphia to Seattle, returning Fri, Jul 31, priced at $432 found 12 hours ago

Find the cheapest month to fly from Philadelphia (PHL) to Seattle (SEA)

March is typically the cheapest month to fly

From $148 - $377 per traveler.
Flights from Philadelphia (PHL) to Seattle (SEA)
Origin airport
Philadelphia Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, JetBlue Airways, Southwest Airlines, Sun Country Airlines, United
Popular airline
Delta
Distance
3794 km
Average flight time
3 hours 20 mins