$171 Cheap Frontier Airlines flights Chicago (MDW) to San Francisco (SFO)

$171 Cheap Frontier Airlines flights Chicago (MDW) to San Francisco (SFO)

Prices were available within the past 7 days and start at $171 for one-way flights and $294 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Dec 25 - Tue, Dec 30

MDW

Chicago

SFO

San Francisco

$294 Roundtrip, found 4 days ago

$294

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Dec 25 from Chicago to San Francisco, returning Tue, Dec 30, priced at $294 found 4 days ago

Mon, Dec 22 - Tue, Dec 30

MDW

Chicago

SFO

San Francisco

$314 Roundtrip, found 4 days ago

$314

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, Dec 22 from Chicago to San Francisco, returning Tue, Dec 30, priced at $314 found 4 days ago

Tue, Dec 23 - Tue, Dec 30

MDW

Chicago

SFO

San Francisco

$318 Roundtrip, found 4 days ago

$318

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Dec 23 from Chicago to San Francisco, returning Tue, Dec 30, priced at $318 found 4 days ago

Mon, Dec 22 - Sun, Dec 28

MDW

Chicago

SFO

San Francisco

$338 Roundtrip, found 4 days ago

$338

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, Dec 22 from Chicago to San Francisco, returning Sun, Dec 28, priced at $338 found 4 days ago

Tue, Dec 23 - Sun, Dec 28

MDW

Chicago

SFO

San Francisco

$342 Roundtrip, found 4 days ago

$342

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Tue, Dec 23 from Chicago to San Francisco, returning Sun, Dec 28, priced at $342 found 4 days ago

Mon, Dec 15 - Fri, Jan 2

MDW

Chicago

SFO

San Francisco

$343 Roundtrip, found 6 hours ago

$343

Roundtrip

found 6 hours ago

Select Frontier Airlines flight, departing Mon, Dec 15 from Chicago to San Francisco, returning Fri, Jan 2, priced at $343 found 6 hours ago