$54 Cheap Frontier Airlines flights San Francisco (SFO) to Denver (DEN)

$54 Cheap Frontier Airlines flights San Francisco (SFO) to Denver (DEN)

Prices were available within the past 7 days and start at $54 for one-way flights and $108 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Jun 30 - Wed, Jul 9

SFO

San Francisco

DEN

Denver

$108 Roundtrip, found 1 day ago

$108

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Jun 30 from San Francisco to Denver, returning Wed, Jul 9, priced at $108 found 1 day ago

Mon, May 19 - Tue, May 20

SFO

San Francisco

DEN

Denver

$112 Roundtrip, found 4 days ago

$112

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, May 19 from San Francisco to Denver, returning Tue, May 20, priced at $112 found 4 days ago

Tue, Jul 1 - Wed, Jul 9

SFO

San Francisco

DEN

Denver

$150 Roundtrip, found 1 day ago

$150

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Jul 1 from San Francisco to Denver, returning Wed, Jul 9, priced at $150 found 1 day ago

Mon, Jun 30 - Sat, Jul 5

SFO

San Francisco

DEN

Denver

$156 Roundtrip, found 1 day ago

$156

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Jun 30 from San Francisco to Denver, returning Sat, Jul 5, priced at $156 found 1 day ago

Sun, Jul 6 - Wed, Jul 9

SFO

San Francisco

DEN

Denver

$160 Roundtrip, found 1 day ago

$160

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Jul 6 from San Francisco to Denver, returning Wed, Jul 9, priced at $160 found 1 day ago

Tue, Jul 1 - Sat, Jul 5

SFO

San Francisco

DEN

Denver

$198 Roundtrip, found 1 day ago

$198

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Jul 1 from San Francisco to Denver, returning Sat, Jul 5, priced at $198 found 1 day ago