$143 Cheap Frontier Airlines flights St. Louis (STL) to San Francisco (SFO)

$143 Cheap Frontier Airlines flights St. Louis (STL) to San Francisco (SFO)

Prices were available within the past 7 days and start at $143 for one-way flights and $275 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Sep 13 - Fri, Sep 26

STL

St. Louis

SFO

San Francisco

$275 Roundtrip, found 5 days ago

$275

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sat, Sep 13 from St. Louis to San Francisco, returning Fri, Sep 26, priced at $275 found 5 days ago

Sat, Sep 6 - Thu, Sep 18

STL

St. Louis

SFO

San Francisco

$280 Roundtrip, found 5 days ago

$280

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sat, Sep 6 from St. Louis to San Francisco, returning Thu, Sep 18, priced at $280 found 5 days ago

Mon, Aug 25 - Tue, Aug 26

STL

St. Louis

SFO

San Francisco

$283 Roundtrip, found 4 days ago

$283

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, Aug 25 from St. Louis to San Francisco, returning Tue, Aug 26, priced at $283 found 4 days ago

Sat, Sep 13 - Sun, Sep 28

STL

St. Louis

SFO

San Francisco

$285 Roundtrip, found 5 days ago

$285

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sat, Sep 13 from St. Louis to San Francisco, returning Sun, Sep 28, priced at $285 found 5 days ago

Wed, Aug 20 - Thu, Aug 28

STL

St. Louis

SFO

San Francisco

$288 Roundtrip, found 4 days ago

$288

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Wed, Aug 20 from St. Louis to San Francisco, returning Thu, Aug 28, priced at $288 found 4 days ago

Mon, Sep 8 - Sun, Sep 28

STL

St. Louis

SFO

San Francisco

$290 Roundtrip, found 5 days ago

$290

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Mon, Sep 8 from St. Louis to San Francisco, returning Sun, Sep 28, priced at $290 found 5 days ago

Thu, Aug 21 - Thu, Aug 28

STL

St. Louis

SFO

San Francisco

$291 Roundtrip, found 4 days ago

$291

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Aug 21 from St. Louis to San Francisco, returning Thu, Aug 28, priced at $291 found 4 days ago

Sat, Aug 23 - Thu, Aug 28

STL

St. Louis

SFO

San Francisco

$293 Roundtrip, found 4 days ago

$293

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Sat, Aug 23 from St. Louis to San Francisco, returning Thu, Aug 28, priced at $293 found 4 days ago