Cheap Frontier Airlines flights San Francisco (SFO) to St. Louis (STL)

Cheap Frontier Airlines flights San Francisco (SFO) to St. Louis (STL)

Prices were available within the past 7 days and start at for one-way flights and $352 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jul 23 - Sat, Jul 26

SFO

San Francisco

STL

St. Louis

$352 Roundtrip, found 1 day ago

$352

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Jul 23 from San Francisco to St. Louis, returning Sat, Jul 26, priced at $352 found 1 day ago

Wed, Jul 23 - Sun, Jul 27

SFO

San Francisco

STL

St. Louis

$372 Roundtrip, found 1 day ago

$372

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Jul 23 from San Francisco to St. Louis, returning Sun, Jul 27, priced at $372 found 1 day ago

Fri, Jul 25 - Sun, Jul 27

SFO

San Francisco

STL

St. Louis

$392 Roundtrip, found 1 day ago

$392

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Jul 25 from San Francisco to St. Louis, returning Sun, Jul 27, priced at $392 found 1 day ago

Thu, Jul 24 - Sat, Jul 26

SFO

San Francisco

STL

St. Louis

$422 Roundtrip, found 1 day ago

$422

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jul 24 from San Francisco to St. Louis, returning Sat, Jul 26, priced at $422 found 1 day ago