Flights from Philadelphia to Preston

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.

Sat, Sep 6 - Tue, Sep 23

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$277 Roundtrip, found 2 days ago

$277

Roundtrip

found 2 days ago

Select Hawaiian Airlines flight, departing Sat, Sep 6 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Tue, Sep 23, priced at $277 found 2 days ago

Thu, Aug 21 - Mon, Sep 1

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$287 Roundtrip, found 5 days ago

$287

Roundtrip

found 5 days ago

Select Alaska Airlines flight, departing Thu, Aug 21 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Mon, Sep 1, priced at $287 found 5 days ago

Thu, Aug 21 - Mon, Sep 1

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$297 Roundtrip, found 5 days ago

$297

Roundtrip

found 5 days ago

Select Delta flight, departing Thu, Aug 21 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Mon, Sep 1, priced at $297 found 5 days ago

Tue, Aug 12 - Mon, Aug 25

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$297 Roundtrip, found 2 days ago

$297

Roundtrip

found 2 days ago

Select Delta flight, departing Tue, Aug 12 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Mon, Aug 25, priced at $297 found 2 days ago

Mon, Aug 11 - Mon, Aug 25

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$305 Roundtrip, found 2 days ago

$305

Roundtrip

found 2 days ago

Select Delta flight, departing Mon, Aug 11 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Mon, Aug 25, priced at $305 found 2 days ago

Thu, Aug 21 - Mon, Sep 1

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$316 Roundtrip, found 5 days ago

$316

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Thu, Aug 21 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Mon, Sep 1, priced at $316 found 5 days ago

Sun, Aug 31 - Sun, Sep 7

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$318 Roundtrip, found 6 days ago

$318

Roundtrip

found 6 days ago

Select Hawaiian Airlines flight, departing Sun, Aug 31 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Sun, Sep 7, priced at $318 found 6 days ago

Tue, Aug 5 - Wed, Aug 27

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$318 Roundtrip, found 2 days ago

$318

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Aug 5 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Wed, Aug 27, priced at $318 found 2 days ago

Thu, Aug 7 - Tue, Aug 12

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$321 Roundtrip, found 2 days ago

$321

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Aug 7 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Tue, Aug 12, priced at $321 found 2 days ago

Thu, Aug 21 - Mon, Sep 1

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$325 Roundtrip, found 5 days ago

$325

Roundtrip

found 5 days ago

Select Sun Country Airlines flight, departing Thu, Aug 21 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Mon, Sep 1, priced at $325 found 5 days ago

Tue, Aug 5 - Thu, Aug 14

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$326 Roundtrip, found 2 days ago

$326

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Aug 5 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Thu, Aug 14, priced at $326 found 2 days ago

Sat, Sep 27 - Sun, Oct 12

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$327 Roundtrip, found 2 days ago

$327

Roundtrip

found 2 days ago

Select Alaska Airlines flight, departing Sat, Sep 27 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Sun, Oct 12, priced at $327 found 2 days ago

Tue, Aug 5 - Fri, Aug 15

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$331 Roundtrip, found 2 days ago

$331

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Tue, Aug 5 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Fri, Aug 15, priced at $331 found 2 days ago

Thu, Aug 21 - Mon, Sep 1

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$332 Roundtrip, found 5 days ago

$332

Roundtrip

found 5 days ago

Select American Airlines flight, departing Thu, Aug 21 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Mon, Sep 1, priced at $332 found 5 days ago

Mon, Aug 4 - Mon, Aug 18

PHL

Philadelphia Intl.

PAE

Seattle Paine Field Intl. Airport

$334 Roundtrip, found 2 days ago

$334

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Aug 4 from Philadelphia Intl. to Seattle Paine Field Intl. Airport, returning Mon, Aug 18, priced at $334 found 2 days ago

Mon, Aug 11 - Sun, Aug 24

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$336 Roundtrip, found 2 days ago

$336

Roundtrip

found 2 days ago

Select Delta flight, departing Mon, Aug 11 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Sun, Aug 24, priced at $336 found 2 days ago

Fri, Aug 8 - Mon, Aug 18

PHL

Philadelphia Intl.

PAE

Seattle Paine Field Intl. Airport

$339 Roundtrip, found 2 days ago

$339

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Philadelphia Intl. to Seattle Paine Field Intl. Airport, returning Mon, Aug 18, priced at $339 found 2 days ago

Wed, Aug 20 - Fri, Sep 5

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$364 Roundtrip, found 2 days ago

$364

Roundtrip

found 2 days ago

Select JetBlue Airways flight, departing Wed, Aug 20 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Fri, Sep 5, priced at $364 found 2 days ago

Tue, Aug 12 - Tue, Aug 12

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$392 Roundtrip, found 2 days ago

$392

Roundtrip

found 2 days ago

Select United flight, departing Tue, Aug 12 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Tue, Aug 12, priced at $392 found 2 days ago

Sun, Aug 3 - Thu, Aug 7

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$533 Roundtrip, found 2 days ago

$533

Roundtrip

found 2 days ago

Select Sun Country Airlines flight, departing Sun, Aug 3 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Thu, Aug 7, priced at $533 found 2 days ago