$158 Cheap Spirit Airlines flights Philadelphia (PHL) to St. Louis (STL)

$158 Cheap Spirit Airlines flights Philadelphia (PHL) to St. Louis (STL)

Prices were available within the past 7 days and start at $158 for one-way flights and $231 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Sep 25 - Fri, Sep 26

PHL

Philadelphia

STL

St. Louis

$231 Roundtrip, found 5 days ago

$231

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Thu, Sep 25 from Philadelphia to St. Louis, returning Fri, Sep 26, priced at $231 found 5 days ago

Thu, Oct 2 - Sun, Oct 5

PHL

Philadelphia

STL

St. Louis

$236 Roundtrip, found 19 hours ago

$236

Roundtrip

found 19 hours ago

Select Spirit Airlines flight, departing Thu, Oct 2 from Philadelphia to St. Louis, returning Sun, Oct 5, priced at $236 found 19 hours ago

Thu, Sep 25 - Thu, Oct 2

PHL

Philadelphia

STL

St. Louis

$241 Roundtrip, found 5 days ago

$241

Roundtrip

found 5 days ago

Select Spirit Airlines flight, departing Thu, Sep 25 from Philadelphia to St. Louis, returning Thu, Oct 2, priced at $241 found 5 days ago

Thu, Oct 2 - Fri, Oct 3

PHL

Philadelphia

STL

St. Louis

$256 Roundtrip, found 19 hours ago

$256

Roundtrip

found 19 hours ago

Select Spirit Airlines flight, departing Thu, Oct 2 from Philadelphia to St. Louis, returning Fri, Oct 3, priced at $256 found 19 hours ago