$125 Cheap Frontier Airlines flights St. Louis (STL) to San Antonio (SAT)

$125 Cheap Frontier Airlines flights St. Louis (STL) to San Antonio (SAT)

Prices were available within the past 7 days and start at $125 for one-way flights and $174 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Sep 20 - Mon, Sep 22

STL

St. Louis

SAT

San Antonio

$174 Roundtrip, found 4 hours ago

$174

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Sat, Sep 20 from St. Louis to San Antonio, returning Mon, Sep 22, priced at $174 found 4 hours ago

Sat, Sep 20 - Fri, Sep 26

STL

St. Louis

SAT

San Antonio

$189 Roundtrip, found 4 hours ago

$189

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Sat, Sep 20 from St. Louis to San Antonio, returning Fri, Sep 26, priced at $189 found 4 hours ago

Fri, Oct 24 - Mon, Oct 27

STL

St. Louis

SAT

San Antonio

$212 Roundtrip, found 5 days ago

$212

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Fri, Oct 24 from St. Louis to San Antonio, returning Mon, Oct 27, priced at $212 found 5 days ago

Sat, Sep 20 - Sun, Sep 21

STL

St. Louis

SAT

San Antonio

$228 Roundtrip, found 4 hours ago

$228

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Sat, Sep 20 from St. Louis to San Antonio, returning Sun, Sep 21, priced at $228 found 4 hours ago

Fri, Oct 24 - Mon, Oct 27

STL

St. Louis

SAT

San Antonio

$259 Roundtrip, found 5 days ago

$259

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Fri, Oct 24 from St. Louis to San Antonio, returning Mon, Oct 27, priced at $259 found 5 days ago

Fri, Oct 24 - Mon, Oct 27

STL

St. Louis

SAT

San Antonio

$265 Roundtrip, found 5 days ago

$265

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Fri, Oct 24 from St. Louis to San Antonio, returning Mon, Oct 27, priced at $265 found 5 days ago

Thu, Sep 18 - Mon, Sep 22

STL

St. Louis

SAT

San Antonio

$266 Roundtrip, found 4 hours ago

$266

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Thu, Sep 18 from St. Louis to San Antonio, returning Mon, Sep 22, priced at $266 found 4 hours ago

Thu, Sep 18 - Sun, Sep 21

STL

St. Louis

SAT

San Antonio

$320 Roundtrip, found 4 hours ago

$320

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Thu, Sep 18 from St. Louis to San Antonio, returning Sun, Sep 21, priced at $320 found 4 hours ago

Sun, Sep 14 - Mon, Sep 22

STL

St. Louis

SAT

San Antonio

$360 Roundtrip, found 4 hours ago

$360

Roundtrip

found 4 hours ago

Select Frontier Airlines flight, departing Sun, Sep 14 from St. Louis to San Antonio, returning Mon, Sep 22, priced at $360 found 4 hours ago