$139 Cheap Alaska Airlines flights Philadelphia (PHL) to Seattle (SEA)

$139 Cheap Alaska Airlines flights Philadelphia (PHL) to Seattle (SEA)

Prices were available within the past 7 days and start at $139 for one-way flights and $257 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Nov 22 - Tue, Dec 2

PHL

Philadelphia

SEA

Seattle

$257 Roundtrip, found 20 hours ago

$257

Roundtrip

found 20 hours ago

Select Alaska Airlines flight, departing Sat, Nov 22 from Philadelphia to Seattle, returning Tue, Dec 2, priced at $257 found 20 hours ago

Sun, Nov 23 - Fri, Nov 28

PHL

Philadelphia

SEA

Seattle

$305 Roundtrip, found 19 hours ago

$305

Roundtrip

found 19 hours ago

Select Alaska Airlines flight, departing Sun, Nov 23 from Philadelphia to Seattle, returning Fri, Nov 28, priced at $305 found 19 hours ago

Sat, Nov 22 - Fri, Nov 28

PHL

Philadelphia

SEA

Seattle

$317 Roundtrip, found 19 hours ago

$317

Roundtrip

found 19 hours ago

Select Alaska Airlines flight, departing Sat, Nov 22 from Philadelphia to Seattle, returning Fri, Nov 28, priced at $317 found 19 hours ago

Wed, Nov 26 - Mon, Dec 1

PHL

Philadelphia

SEA

Seattle

$347 Roundtrip, found 19 hours ago

$347

Roundtrip

found 19 hours ago

Select Alaska Airlines flight, departing Wed, Nov 26 from Philadelphia to Seattle, returning Mon, Dec 1, priced at $347 found 19 hours ago

Sun, Nov 23 - Fri, Nov 28

PHL

Philadelphia

SEA

Seattle

$355 Roundtrip, found 19 hours ago

$355

Roundtrip

found 19 hours ago

Select Alaska Airlines flight, departing Sun, Nov 23 from Philadelphia to Seattle, returning Fri, Nov 28, priced at $355 found 19 hours ago

Sun, Nov 23 - Fri, Nov 28

PHL

Philadelphia

SEA

Seattle

$357 Roundtrip, found 19 hours ago

$357

Roundtrip

found 19 hours ago

Select Alaska Airlines flight, departing Sun, Nov 23 from Philadelphia to Seattle, returning Fri, Nov 28, priced at $357 found 19 hours ago