Cheap Frontier Airlines flights Chicago (MDW) to San Francisco (SFO)

Cheap Frontier Airlines flights Chicago (MDW) to San Francisco (SFO)

Prices were available within the past 7 days and start at for one-way flights and $326 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Sep 5 - Mon, Sep 8

MDW

Chicago

SFO

San Francisco

$326 Roundtrip, found 1 day ago

$326

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Sep 5 from Chicago to San Francisco, returning Mon, Sep 8, priced at $326 found 1 day ago

Mon, Sep 1 - Fri, Sep 5

MDW

Chicago

SFO

San Francisco

$385 Roundtrip, found 1 day ago

$385

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Sep 1 from Chicago to San Francisco, returning Fri, Sep 5, priced at $385 found 1 day ago