$85 Cheap Frontier Airlines flights San Francisco (SFO) to St. Louis (STL)

$85 Cheap Frontier Airlines flights San Francisco (SFO) to St. Louis (STL)

Prices were available within the past 7 days and start at $85 for one-way flights and $195 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, May 12 - Fri, May 29

SFO

San Francisco

STL

St. Louis

$195 Roundtrip, found 1 day ago

$195

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, May 12 from San Francisco to St. Louis, returning Fri, May 29, priced at $195 found 1 day ago

Tue, May 12 - Sat, May 23

SFO

San Francisco

STL

St. Louis

$215 Roundtrip, found 1 day ago

$215

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, May 12 from San Francisco to St. Louis, returning Sat, May 23, priced at $215 found 1 day ago

Sat, May 16 - Fri, May 29

SFO

San Francisco

STL

St. Louis

$220 Roundtrip, found 1 day ago

$220

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, May 16 from San Francisco to St. Louis, returning Fri, May 29, priced at $220 found 1 day ago

Tue, May 12 - Tue, May 26

SFO

San Francisco

STL

St. Louis

$235 Roundtrip, found 1 day ago

$235

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, May 12 from San Francisco to St. Louis, returning Tue, May 26, priced at $235 found 1 day ago

Sun, May 17 - Fri, May 29

SFO

San Francisco

STL

St. Louis

$240 Roundtrip, found 1 day ago

$240

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, May 17 from San Francisco to St. Louis, returning Fri, May 29, priced at $240 found 1 day ago

Fri, May 15 - Fri, May 29

SFO

San Francisco

STL

St. Louis

$260 Roundtrip, found 1 day ago

$260

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, May 15 from San Francisco to St. Louis, returning Fri, May 29, priced at $260 found 1 day ago