$89 Cheap Frontier Airlines flights San Francisco (SFO) to Denver (DEN)

$89 Cheap Frontier Airlines flights San Francisco (SFO) to Denver (DEN)

Prices were available within the past 7 days and start at $89 for one-way flights and $68 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jan 8 - Thu, Jan 22

SFO

San Francisco

DEN

Denver

$68 Roundtrip, found 1 day ago

$68

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jan 8 from San Francisco to Denver, returning Thu, Jan 22, priced at $68 found 1 day ago

Wed, Dec 3 - Thu, Dec 18

SFO

San Francisco

DEN

Denver

$69 Roundtrip, found 1 day ago

$69

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Dec 3 from San Francisco to Denver, returning Thu, Dec 18, priced at $69 found 1 day ago

Thu, Dec 4 - Thu, Dec 18

SFO

San Francisco

DEN

Denver

$70 Roundtrip, found 1 day ago

$70

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Dec 4 from San Francisco to Denver, returning Thu, Dec 18, priced at $70 found 1 day ago

Tue, Dec 9 - Thu, Dec 25

SFO

San Francisco

DEN

Denver

$88 Roundtrip, found 1 day ago

$88

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Dec 9 from San Francisco to Denver, returning Thu, Dec 25, priced at $88 found 1 day ago

Mon, Dec 8 - Thu, Dec 25

SFO

San Francisco

DEN

Denver

$89 Roundtrip, found 1 day ago

$89

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Dec 8 from San Francisco to Denver, returning Thu, Dec 25, priced at $89 found 1 day ago

Thu, Jan 8 - Tue, Jan 20

SFO

San Francisco

DEN

Denver

$94 Roundtrip, found 1 day ago

$94

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jan 8 from San Francisco to Denver, returning Tue, Jan 20, priced at $94 found 1 day ago