Flights from Philadelphia to Valley Park

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.

Wed, Sep 24 - Mon, Sep 29

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$155 Roundtrip, found 1 day ago

$155

Roundtrip

found 1 day ago

Select American Airlines flight, departing Wed, Sep 24 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Mon, Sep 29, priced at $155 found 1 day ago

Thu, Sep 25 - Thu, Oct 2

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$158 Roundtrip, found 1 day ago

$158

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Thu, Sep 25 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Thu, Oct 2, priced at $158 found 1 day ago

Thu, Sep 25 - Sun, Sep 28

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$168 Roundtrip, found 1 day ago

$168

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Thu, Sep 25 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Sun, Sep 28, priced at $168 found 1 day ago

Wed, Sep 24 - Mon, Sep 29

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$174 Roundtrip, found 1 day ago

$174

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Wed, Sep 24 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Mon, Sep 29, priced at $174 found 1 day ago

Sun, Sep 21 - Thu, Oct 2

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$177 Roundtrip, found 1 day ago

$177

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sun, Sep 21 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Thu, Oct 2, priced at $177 found 1 day ago

Thu, Sep 25 - Sat, Sep 27

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$183 Roundtrip, found 1 day ago

$183

Roundtrip

found 1 day ago

Select American Airlines flight, departing Thu, Sep 25 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Sat, Sep 27, priced at $183 found 1 day ago

Sun, Sep 21 - Sun, Sep 28

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$187 Roundtrip, found 1 day ago

$187

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sun, Sep 21 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Sun, Sep 28, priced at $187 found 1 day ago

Thu, Sep 25 - Fri, Sep 26

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$200 Roundtrip, found 1 day ago

$200

Roundtrip

found 1 day ago

Select American Airlines flight, departing Thu, Sep 25 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Fri, Sep 26, priced at $200 found 1 day ago

Wed, Sep 24 - Thu, Oct 2

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$211 Roundtrip, found 1 day ago

$211

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Wed, Sep 24 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Thu, Oct 2, priced at $211 found 1 day ago

Wed, Sep 24 - Sun, Sep 28

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$221 Roundtrip, found 1 day ago

$221

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Wed, Sep 24 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Sun, Sep 28, priced at $221 found 1 day ago

Wed, Sep 24 - Mon, Sep 29

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$226 Roundtrip, found 1 day ago

$226

Roundtrip

found 1 day ago

Select United flight, departing Wed, Sep 24 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Mon, Sep 29, priced at $226 found 1 day ago

Wed, Sep 24 - Mon, Sep 29

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$231 Roundtrip, found 1 day ago

$231

Roundtrip

found 1 day ago

Select American Airlines flight, departing Wed, Sep 24 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Mon, Sep 29, priced at $231 found 1 day ago

Wed, Sep 24 - Mon, Sep 29

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$243 Roundtrip, found 1 day ago

$243

Roundtrip

found 1 day ago

Select American Airlines flight, departing Wed, Sep 24 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Mon, Sep 29, priced at $243 found 1 day ago

Wed, Sep 24 - Mon, Sep 29

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$247 Roundtrip, found 1 day ago

$247

Roundtrip

found 1 day ago

Select American Airlines flight, departing Wed, Sep 24 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Mon, Sep 29, priced at $247 found 1 day ago

Wed, Sep 24 - Mon, Sep 29

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$254 Roundtrip, found 1 day ago

$254

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Wed, Sep 24 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Mon, Sep 29, priced at $254 found 1 day ago

Wed, Sep 24 - Sat, Sep 27

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$255 Roundtrip, found 1 day ago

$255

Roundtrip

found 1 day ago

Select American Airlines flight, departing Wed, Sep 24 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Sat, Sep 27, priced at $255 found 1 day ago

Fri, Sep 26 - Sat, Sep 27

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$261 Roundtrip, found 1 day ago

$261

Roundtrip

found 1 day ago

Select American Airlines flight, departing Fri, Sep 26 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Sat, Sep 27, priced at $261 found 1 day ago

Mon, Sep 22 - Fri, Sep 26

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$306 Roundtrip, found 1 day ago

$306

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Sep 22 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Fri, Sep 26, priced at $306 found 1 day ago

Wed, Sep 24 - Mon, Sep 29

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$328 Roundtrip, found 1 day ago

$328

Roundtrip

found 1 day ago

Select United flight, departing Wed, Sep 24 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Mon, Sep 29, priced at $328 found 1 day ago

Wed, Sep 24 - Mon, Sep 29

PHL

Philadelphia Intl.

STL

Lambert-St. Louis Intl.

$375 Roundtrip, found 1 day ago

$375

Roundtrip

found 1 day ago

Select Delta flight, departing Wed, Sep 24 from Philadelphia Intl. to Lambert-St. Louis Intl., returning Mon, Sep 29, priced at $375 found 1 day ago