Flights from Philadelphia to Western United States

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.

Thu, Jun 5 - Thu, Jun 12

PHL

Philadelphia Intl.

LAX

Los Angeles Intl.

$120 Roundtrip, found 6 days ago

$120

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Thu, Jun 5 from Philadelphia Intl. to Los Angeles Intl., returning Thu, Jun 12, priced at $120 found 6 days ago

Sat, Jun 14 - Sat, Jun 14

PHL

Philadelphia Intl.

LAX

Los Angeles Intl.

$145 Roundtrip, found 6 days ago

$145

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sat, Jun 14 from Philadelphia Intl. to Los Angeles Intl., returning Sat, Jun 14, priced at $145 found 6 days ago

Mon, Jun 16 - Thu, Jun 19

PHL

Philadelphia Intl.

LAS

Harry Reid Intl.

$184 Roundtrip, found 2 days ago

$184

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Jun 16 from Philadelphia Intl. to Harry Reid Intl., returning Thu, Jun 19, priced at $184 found 2 days ago

Tue, Aug 12 - Wed, Aug 20

PHL

Philadelphia Intl.

DEN

Denver Intl.

$188 Roundtrip, found 8 hours ago

$188

Roundtrip

found 8 hours ago

Select Frontier Airlines flight, departing Tue, Aug 12 from Philadelphia Intl. to Denver Intl., returning Wed, Aug 20, priced at $188 found 8 hours ago

Wed, Jul 9 - Sat, Jul 12

PHL

Philadelphia Intl.

LAX

Los Angeles Intl.

$201 Roundtrip, found 5 days ago

$201

Roundtrip

found 5 days ago

Select American Airlines flight, departing Wed, Jul 9 from Philadelphia Intl. to Los Angeles Intl., returning Sat, Jul 12, priced at $201 found 5 days ago

Tue, Aug 19 - Tue, Aug 26

PHL

Philadelphia Intl.

PHX

Sky Harbor Intl.

$243 Roundtrip, found 3 hours ago

$243

Roundtrip

found 3 hours ago

Select Spirit Airlines flight, departing Tue, Aug 19 from Philadelphia Intl. to Sky Harbor Intl., returning Tue, Aug 26, priced at $243 found 3 hours ago

Tue, Jun 24 - Sat, Jun 28

PHL

Philadelphia Intl.

DEN

Denver Intl.

$243 Roundtrip, found 3 days ago

$243

Roundtrip

found 3 days ago

Select United flight, departing Tue, Jun 24 from Philadelphia Intl. to Denver Intl., returning Sat, Jun 28, priced at $243 found 3 days ago

Tue, Jul 29 - Tue, Aug 12

PHL

Philadelphia Intl.

SFO

San Francisco Intl.

$247 Roundtrip, found 2 days ago

$247

Roundtrip

found 2 days ago

Select JetBlue Airways flight, departing Tue, Jul 29 from Philadelphia Intl. to San Francisco Intl., returning Tue, Aug 12, priced at $247 found 2 days ago

Sat, Jul 19 - Tue, Jul 29

PHL

Philadelphia Intl.

SLC

Salt Lake City Intl.

$250 Roundtrip, found 2 days ago

$250

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Jul 19 from Philadelphia Intl. to Salt Lake City Intl., returning Tue, Jul 29, priced at $250 found 2 days ago

Mon, Jul 21 - Tue, Jul 22

PHL

Philadelphia Intl.

LAS

Harry Reid Intl.

$251 Roundtrip, found 1 day ago

$251

Roundtrip

found 1 day ago

Select Delta flight, departing Mon, Jul 21 from Philadelphia Intl. to Harry Reid Intl., returning Tue, Jul 22, priced at $251 found 1 day ago

Wed, Jul 23 - Mon, Jul 28

TTN

Mercer

DEN

Denver Intl.

$266 Roundtrip, found 1 day ago

$266

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Jul 23 from Mercer to Denver Intl., returning Mon, Jul 28, priced at $266 found 1 day ago

Tue, Jul 29 - Thu, Aug 21

PHL

Philadelphia Intl.

SAN

San Diego Intl.

$270 Roundtrip, found 4 days ago

$270

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Jul 29 from Philadelphia Intl. to San Diego Intl., returning Thu, Aug 21, priced at $270 found 4 days ago

Tue, Jul 29 - Tue, Aug 5

PHL

Philadelphia Intl.

PDX

Portland Intl.

$270 Roundtrip, found 1 day ago

$270

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Jul 29 from Philadelphia Intl. to Portland Intl., returning Tue, Aug 5, priced at $270 found 1 day ago

Tue, Jun 3 - Sat, Jun 7

PHL

Philadelphia Intl.

SEA

Seattle - Tacoma Intl.

$270 Roundtrip, found 1 day ago

$270

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Jun 3 from Philadelphia Intl. to Seattle - Tacoma Intl., returning Sat, Jun 7, priced at $270 found 1 day ago

Wed, Jun 11 - Sun, Jun 15

TTN

Mercer

LAX

Los Angeles Intl.

$274 Roundtrip, found 6 days ago

$274

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Wed, Jun 11 from Mercer to Los Angeles Intl., returning Sun, Jun 15, priced at $274 found 6 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, Sep 23 - Tue, Sep 30

ABE

Lehigh Valley Intl.

PHX

Sky Harbor Intl.

$284 Roundtrip, found 1 day ago

$284

Roundtrip

found 1 day ago

Select United flight, departing Tue, Sep 23 from Lehigh Valley Intl. to Sky Harbor Intl., returning Tue, Sep 30, priced at $284 found 1 day ago

Tue, Jul 8 - Tue, Jul 15

ABE

Lehigh Valley Intl.

LAX

Los Angeles Intl.

$310 Roundtrip, found 6 days ago

$310

Roundtrip

found 6 days ago

Select American Airlines flight, departing Tue, Jul 8 from Lehigh Valley Intl. to Los Angeles Intl., returning Tue, Jul 15, priced at $310 found 6 days ago

Tue, Sep 2 - Wed, Sep 10

PHL

Philadelphia Intl.

JAC

Jackson Hole

$325 Roundtrip, found 6 days ago

$325

Roundtrip

found 6 days ago

Select American Airlines flight, departing Tue, Sep 2 from Philadelphia Intl. to Jackson Hole, returning Wed, Sep 10, priced at $325 found 6 days ago

Mon, Jul 7 - Sat, Jul 12

TTN

Mercer

SFO

San Francisco Intl.

$348 Roundtrip, found 2 days ago

$348

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Jul 7 from Mercer to San Francisco Intl., returning Sat, Jul 12, priced at $348 found 2 days ago