$149 Cheap Alaska Airlines flights Philadelphia (PHL) to Seattle (SEA)

$149 Cheap Alaska Airlines flights Philadelphia (PHL) to Seattle (SEA)

Prices were available within the past 7 days and start at $149 for one-way flights and $257 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Dec 15 - Wed, Dec 24

PHL

Philadelphia

SEA

Seattle

$257 Roundtrip, found 1 day ago

$257

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Mon, Dec 15 from Philadelphia to Seattle, returning Wed, Dec 24, priced at $257 found 1 day ago

Wed, Dec 17 - Mon, Jan 5

PHL

Philadelphia

SEA

Seattle

$297 Roundtrip, found 6 days ago

$297

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Wed, Dec 17 from Philadelphia to Seattle, returning Mon, Jan 5, priced at $297 found 6 days ago

Mon, Dec 15 - Sun, Jan 4

PHL

Philadelphia

SEA

Seattle

$327 Roundtrip, found 6 days ago

$327

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Mon, Dec 15 from Philadelphia to Seattle, returning Sun, Jan 4, priced at $327 found 6 days ago

Mon, Dec 15 - Mon, Dec 22

PHL

Philadelphia

SEA

Seattle

$340 Roundtrip, found 1 day ago

$340

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Mon, Dec 15 from Philadelphia to Seattle, returning Mon, Dec 22, priced at $340 found 1 day ago

Sun, Dec 14 - Sun, Jan 4

PHL

Philadelphia

SEA

Seattle

$347 Roundtrip, found 6 days ago

$347

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Sun, Dec 14 from Philadelphia to Seattle, returning Sun, Jan 4, priced at $347 found 6 days ago

Mon, Dec 15 - Mon, Dec 22

PHL

Philadelphia

SEA

Seattle

$360 Roundtrip, found 1 day ago

$360

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Mon, Dec 15 from Philadelphia to Seattle, returning Mon, Dec 22, priced at $360 found 1 day ago

Thu, Dec 18 - Wed, Dec 24

PHL

Philadelphia

SEA

Seattle

$362 Roundtrip, found 1 day ago

$362

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Thu, Dec 18 from Philadelphia to Seattle, returning Wed, Dec 24, priced at $362 found 1 day ago

Wed, Dec 17 - Mon, Jan 5

PHL

Philadelphia

SEA

Seattle

$377 Roundtrip, found 6 days ago

$377

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Wed, Dec 17 from Philadelphia to Seattle, returning Mon, Jan 5, priced at $377 found 6 days ago