Cheap Frontier Airlines flights Austin (AUS) to St. Louis (STL)

Cheap Frontier Airlines flights Austin (AUS) to St. Louis (STL)

Prices were available within the past 7 days and start at for one-way flights and $172 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jan 15 - Sat, Jan 24

AUS

Austin

STL

St. Louis

$172 Roundtrip, found 2 days ago

$172

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Jan 15 from Austin to St. Louis, returning Sat, Jan 24, priced at $172 found 2 days ago

Sun, Jan 11 - Sat, Jan 24

AUS

Austin

STL

St. Louis

$207 Roundtrip, found 2 days ago

$207

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Jan 11 from Austin to St. Louis, returning Sat, Jan 24, priced at $207 found 2 days ago

Sun, Jan 11 - Fri, Jan 23

AUS

Austin

STL

St. Louis

$242 Roundtrip, found 2 days ago

$242

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Jan 11 from Austin to St. Louis, returning Fri, Jan 23, priced at $242 found 2 days ago

Fri, Jan 16 - Sat, Jan 24

AUS

Austin

STL

St. Louis

$246 Roundtrip, found 2 days ago

$246

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Jan 16 from Austin to St. Louis, returning Sat, Jan 24, priced at $246 found 2 days ago