Flights from Philadelphia to Puget Sound

Cheapest flights from Philadelphia

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jun 3 - Sat, Jun 7

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$270 Roundtrip, found 17 hours ago

$270

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Tue, Jun 3 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Sat, Jun 7, priced at $270 found 17 hours ago

Thu, Sep 25 - Wed, Oct 8

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$272 Roundtrip, found 2 days ago

$272

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Sep 25 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Wed, Oct 8, priced at $272 found 2 days ago

Fri, Sep 26 - Fri, Oct 3

PHL

Philadelphia Intl.

PAE

Seattle Paine Field Intl. Airport

$274 Roundtrip, found 2 days ago

$274

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Sep 26 from Philadelphia Intl. to Seattle Paine Field Intl. Airport, returning Fri, Oct 3, priced at $274 found 2 days ago

Tue, Jun 3 - Fri, Jun 6

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$281 Roundtrip, found 17 hours ago

$281

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Tue, Jun 3 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Fri, Jun 6, priced at $281 found 17 hours ago

Thu, Sep 25 - Fri, Oct 3

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$283 Roundtrip, found 2 days ago

$283

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Sep 25 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Fri, Oct 3, priced at $283 found 2 days ago

Sat, Jul 5 - Thu, Jul 10

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$285 Roundtrip, found 1 day ago

$285

Roundtrip

found 1 day ago

Select Delta flight, departing Sat, Jul 5 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Thu, Jul 10, priced at $285 found 1 day ago

Tue, Jul 8 - Fri, Jul 11

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$288 Roundtrip, found 1 day ago

$288

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Jul 8 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Fri, Jul 11, priced at $288 found 1 day ago

Wed, Jun 11 - Fri, Jun 20

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$290 Roundtrip, found 22 hours ago

$290

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Wed, Jun 11 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Fri, Jun 20, priced at $290 found 22 hours ago

Mon, Jun 2 - Fri, Jun 6

PHL

Philadelphia Intl.

PAE

Seattle Paine Field Intl. Airport

$292 Roundtrip, found 17 hours ago

$292

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Mon, Jun 2 from Philadelphia Intl. to Seattle Paine Field Intl. Airport, returning Fri, Jun 6, priced at $292 found 17 hours ago

Tue, Sep 23 - Fri, Oct 3

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$297 Roundtrip, found 2 days ago

$297

Roundtrip

found 2 days ago

Select Hawaiian Airlines flight, departing Tue, Sep 23 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Fri, Oct 3, priced at $297 found 2 days ago

Fri, Sep 26 - Mon, Oct 6

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$297 Roundtrip, found 2 days ago

$297

Roundtrip

found 2 days ago

Select American Airlines flight, departing Fri, Sep 26 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Mon, Oct 6, priced at $297 found 2 days ago

Thu, Jul 10 - Sat, Jul 12

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$300 Roundtrip, found 1 day ago

$300

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jul 10 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Sat, Jul 12, priced at $300 found 1 day ago

Fri, Jun 13 - Fri, Jun 20

PHL

Philadelphia Intl.

PAE

Seattle Paine Field Intl. Airport

$301 Roundtrip, found 22 hours ago

$301

Roundtrip

found 22 hours ago

Select Frontier Airlines flight, departing Fri, Jun 13 from Philadelphia Intl. to Seattle Paine Field Intl. Airport, returning Fri, Jun 20, priced at $301 found 22 hours ago

Fri, Sep 26 - Mon, Oct 6

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$305 Roundtrip, found 2 days ago

$305

Roundtrip

found 2 days ago

Select United flight, departing Fri, Sep 26 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Mon, Oct 6, priced at $305 found 2 days ago

Fri, Jul 11 - Fri, Jul 11

PHL

Philadelphia Intl.

PAE

Seattle Paine Field Intl. Airport

$306 Roundtrip, found 1 day ago

$306

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Jul 11 from Philadelphia Intl. to Seattle Paine Field Intl. Airport, returning Fri, Jul 11, priced at $306 found 1 day ago

Tue, Jul 8 - Sat, Jul 12

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$313 Roundtrip, found 1 day ago

$313

Roundtrip

found 1 day ago

Select United flight, departing Tue, Jul 8 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Sat, Jul 12, priced at $313 found 1 day ago

Fri, Sep 26 - Mon, Oct 6

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$325 Roundtrip, found 2 days ago

$325

Roundtrip

found 2 days ago

Select United flight, departing Fri, Sep 26 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Mon, Oct 6, priced at $325 found 2 days ago

Fri, Sep 26 - Mon, Oct 6

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$327 Roundtrip, found 2 days ago

$327

Roundtrip

found 2 days ago

Select American Airlines flight, departing Fri, Sep 26 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Mon, Oct 6, priced at $327 found 2 days ago

Fri, Sep 26 - Mon, Oct 6

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$327 Roundtrip, found 2 days ago

$327

Roundtrip

found 2 days ago

Select American Airlines flight, departing Fri, Sep 26 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Mon, Oct 6, priced at $327 found 2 days ago

Tue, Jul 8 - Sat, Jul 12

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$427 Roundtrip, found 1 day ago

$427

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Tue, Jul 8 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Sat, Jul 12, priced at $427 found 1 day ago