Flights from San Francisco to Aspen

Cheapest flights from San Francisco

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Jun 2 - Sat, Jun 7

SFO

San Francisco Intl.

DEN

Denver Intl.

$106 Roundtrip, found 2 days ago

$106

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Jun 2 from San Francisco Intl. to Denver Intl., returning Sat, Jun 7, priced at $106 found 2 days ago

Mon, Jun 2 - Fri, Jun 6

SFO

San Francisco Intl.

DEN

Denver Intl.

$126 Roundtrip, found 2 days ago

$126

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Jun 2 from San Francisco Intl. to Denver Intl., returning Fri, Jun 6, priced at $126 found 2 days ago

Sun, Aug 3 - Sat, Aug 9

SFO

San Francisco Intl.

DEN

Denver Intl.

$136 Roundtrip, found 5 days ago

$136

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sun, Aug 3 from San Francisco Intl. to Denver Intl., returning Sat, Aug 9, priced at $136 found 5 days ago

Thu, Jun 5 - Sat, Jun 7

SFO

San Francisco Intl.

DEN

Denver Intl.

$140 Roundtrip, found 3 days ago

$140

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Jun 5 from San Francisco Intl. to Denver Intl., returning Sat, Jun 7, priced at $140 found 3 days ago

Sun, Aug 3 - Fri, Aug 8

SFO

San Francisco Intl.

DEN

Denver Intl.

$146 Roundtrip, found 5 days ago

$146

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sun, Aug 3 from San Francisco Intl. to Denver Intl., returning Fri, Aug 8, priced at $146 found 5 days ago

Mon, Jun 2 - Mon, Jun 9

SFO

San Francisco Intl.

DEN

Denver Intl.

$149 Roundtrip, found 2 days ago

$149

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Jun 2 from San Francisco Intl. to Denver Intl., returning Mon, Jun 9, priced at $149 found 2 days ago

Sat, Jun 7 - Sat, Jun 7

SFO

San Francisco Intl.

DEN

Denver Intl.

$152 Roundtrip, found 2 days ago

$152

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Jun 7 from San Francisco Intl. to Denver Intl., returning Sat, Jun 7, priced at $152 found 2 days ago

Sun, Aug 3 - Wed, Aug 13

SFO

San Francisco Intl.

DEN

Denver Intl.

$156 Roundtrip, found 5 days ago

$156

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sun, Aug 3 from San Francisco Intl. to Denver Intl., returning Wed, Aug 13, priced at $156 found 5 days ago

Thu, Jun 5 - Fri, Jun 6

SFO

San Francisco Intl.

DEN

Denver Intl.

$160 Roundtrip, found 3 days ago

$160

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Jun 5 from San Francisco Intl. to Denver Intl., returning Fri, Jun 6, priced at $160 found 3 days ago

Thu, Jun 5 - Sat, Jun 7

SFO

San Francisco Intl.

DEN

Denver Intl.

$162 Roundtrip, found 2 days ago

$162

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Jun 5 from San Francisco Intl. to Denver Intl., returning Sat, Jun 7, priced at $162 found 2 days ago

Sun, Aug 3 - Thu, Aug 14

SFO

San Francisco Intl.

DEN

Denver Intl.

$166 Roundtrip, found 5 days ago

$166

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sun, Aug 3 from San Francisco Intl. to Denver Intl., returning Thu, Aug 14, priced at $166 found 5 days ago

Tue, Jun 3 - Sun, Jun 8

SFO

San Francisco Intl.

DEN

Denver Intl.

$167 Roundtrip, found 3 days ago

$167

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Tue, Jun 3 from San Francisco Intl. to Denver Intl., returning Sun, Jun 8, priced at $167 found 3 days ago

Fri, Jun 6 - Sun, Jun 8

SFO

San Francisco Intl.

DEN

Denver Intl.

$169 Roundtrip, found 2 days ago

$169

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Jun 6 from San Francisco Intl. to Denver Intl., returning Sun, Jun 8, priced at $169 found 2 days ago

Sun, Jun 22 - Thu, Jun 26

SJC

Norman Y. Mineta San Jose Intl.

DEN

Denver Intl.

$179 Roundtrip, found 2 days ago

$179

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sun, Jun 22 from Norman Y. Mineta San Jose Intl. to Denver Intl., returning Thu, Jun 26, priced at $179 found 2 days ago

Tue, Jun 3 - Sun, Jun 8

SFO

San Francisco Intl.

DEN

Denver Intl.

$265 Roundtrip, found 3 days ago

$265

Roundtrip

found 3 days ago

Select United flight, departing Tue, Jun 3 from San Francisco Intl. to Denver Intl., returning Sun, Jun 8, priced at $265 found 3 days ago

Tue, Jun 10 - Mon, Jun 16

SFO

San Francisco Intl.

ASE

Pitkin County

$279 Roundtrip, found 1 day ago

$279

Roundtrip

found 1 day ago

Select United flight, departing Tue, Jun 10 from San Francisco Intl. to Pitkin County, returning Mon, Jun 16, priced at $279 found 1 day ago

Tue, Jun 3 - Sun, Jun 8

SFO

San Francisco Intl.

DEN

Denver Intl.

$285 Roundtrip, found 3 days ago

$285

Roundtrip

found 3 days ago

Select Delta flight, departing Tue, Jun 3 from San Francisco Intl. to Denver Intl., returning Sun, Jun 8, priced at $285 found 3 days ago

Tue, Jun 3 - Sun, Jun 8

SFO

San Francisco Intl.

DEN

Denver Intl.

$285 Roundtrip, found 3 days ago

$285

Roundtrip

found 3 days ago

Select American Airlines flight, departing Tue, Jun 3 from San Francisco Intl. to Denver Intl., returning Sun, Jun 8, priced at $285 found 3 days ago

Tue, Jun 24 - Wed, Jun 25

SJC

Norman Y. Mineta San Jose Intl.

DEN

Denver Intl.

$299 Roundtrip, found 2 days ago

$299

Roundtrip

found 2 days ago

Select Alaska Airlines flight, departing Tue, Jun 24 from Norman Y. Mineta San Jose Intl. to Denver Intl., returning Wed, Jun 25, priced at $299 found 2 days ago

Fri, Jun 20 - Tue, Jun 24

SJC

Norman Y. Mineta San Jose Intl.

DEN

Denver Intl.

$320 Roundtrip, found 2 days ago

$320

Roundtrip

found 2 days ago

Select Hawaiian Airlines flight, departing Fri, Jun 20 from Norman Y. Mineta San Jose Intl. to Denver Intl., returning Tue, Jun 24, priced at $320 found 2 days ago