Flights from Boulder to San Jose

Cheapest flights from Boulder

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.

Fri, Aug 8 - Mon, Aug 11

DEN

Denver Intl.

SFO

San Francisco Intl.

$138 Roundtrip, found 6 days ago

$138

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Denver Intl. to San Francisco Intl., returning Mon, Aug 11, priced at $138 found 6 days ago

Tue, Jul 8 - Tue, Jul 15

DEN

Denver Intl.

SFO

San Francisco Intl.

$157 Roundtrip, found 5 days ago

$157

Roundtrip

found 5 days ago

Select United flight, departing Tue, Jul 8 from Denver Intl. to San Francisco Intl., returning Tue, Jul 15, priced at $157 found 5 days ago

Tue, Jul 8 - Tue, Jul 15

DEN

Denver Intl.

SFO

San Francisco Intl.

$167 Roundtrip, found 5 days ago

$167

Roundtrip

found 5 days ago

Select United flight, departing Tue, Jul 8 from Denver Intl. to San Francisco Intl., returning Tue, Jul 15, priced at $167 found 5 days ago

Wed, Jun 25 - Tue, Jul 1

DEN

Denver Intl.

SFO

San Francisco Intl.

$178 Roundtrip, found 2 days ago

$178

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, Jun 25 from Denver Intl. to San Francisco Intl., returning Tue, Jul 1, priced at $178 found 2 days ago

Tue, Jul 8 - Tue, Jul 15

DEN

Denver Intl.

SFO

San Francisco Intl.

$187 Roundtrip, found 5 days ago

$187

Roundtrip

found 5 days ago

Select Delta flight, departing Tue, Jul 8 from Denver Intl. to San Francisco Intl., returning Tue, Jul 15, priced at $187 found 5 days ago

Thu, Jun 19 - Tue, Jun 24

DEN

Denver Intl.

SFO

San Francisco Intl.

$188 Roundtrip, found 5 days ago

$188

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Thu, Jun 19 from Denver Intl. to San Francisco Intl., returning Tue, Jun 24, priced at $188 found 5 days ago

Tue, Jul 8 - Tue, Jul 15

DEN

Denver Intl.

SFO

San Francisco Intl.

$197 Roundtrip, found 5 days ago

$197

Roundtrip

found 5 days ago

Select United flight, departing Tue, Jul 8 from Denver Intl. to San Francisco Intl., returning Tue, Jul 15, priced at $197 found 5 days ago

Wed, Jun 18 - Tue, Jun 24

DEN

Denver Intl.

SFO

San Francisco Intl.

$200 Roundtrip, found 5 days ago

$200

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Wed, Jun 18 from Denver Intl. to San Francisco Intl., returning Tue, Jun 24, priced at $200 found 5 days ago

Wed, Jun 25 - Tue, Jul 1

DEN

Denver Intl.

SFO

San Francisco Intl.

$206 Roundtrip, found 2 days ago

$206

Roundtrip

found 2 days ago

Select United flight, departing Wed, Jun 25 from Denver Intl. to San Francisco Intl., returning Tue, Jul 1, priced at $206 found 2 days ago

Wed, Jun 18 - Sat, Jun 21

DEN

Denver Intl.

SFO

San Francisco Intl.

$206 Roundtrip, found 5 days ago

$206

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Wed, Jun 18 from Denver Intl. to San Francisco Intl., returning Sat, Jun 21, priced at $206 found 5 days ago

Wed, Jun 25 - Tue, Jul 1

DEN

Denver Intl.

SFO

San Francisco Intl.

$207 Roundtrip, found 2 days ago

$207

Roundtrip

found 2 days ago

Select American Airlines flight, departing Wed, Jun 25 from Denver Intl. to San Francisco Intl., returning Tue, Jul 1, priced at $207 found 2 days ago

Wed, Jun 25 - Tue, Jul 1

DEN

Denver Intl.

SFO

San Francisco Intl.

$210 Roundtrip, found 2 days ago

$210

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, Jun 25 from Denver Intl. to San Francisco Intl., returning Tue, Jul 1, priced at $210 found 2 days ago

Tue, Jul 8 - Tue, Jul 15

DEN

Denver Intl.

SFO

San Francisco Intl.

$213 Roundtrip, found 5 days ago

$213

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Tue, Jul 8 from Denver Intl. to San Francisco Intl., returning Tue, Jul 15, priced at $213 found 5 days ago

Tue, Jul 8 - Tue, Jul 15

DEN

Denver Intl.

SFO

San Francisco Intl.

$215 Roundtrip, found 5 days ago

$215

Roundtrip

found 5 days ago

Select American Airlines flight, departing Tue, Jul 8 from Denver Intl. to San Francisco Intl., returning Tue, Jul 15, priced at $215 found 5 days ago

Tue, Jun 24 - Tue, Jun 24

DEN

Denver Intl.

SFO

San Francisco Intl.

$217 Roundtrip, found 5 days ago

$217

Roundtrip

found 5 days ago

Select Delta flight, departing Tue, Jun 24 from Denver Intl. to San Francisco Intl., returning Tue, Jun 24, priced at $217 found 5 days ago

Wed, Jun 25 - Tue, Jul 1

DEN

Denver Intl.

SFO

San Francisco Intl.

$217 Roundtrip, found 2 days ago

$217

Roundtrip

found 2 days ago

Select American Airlines flight, departing Wed, Jun 25 from Denver Intl. to San Francisco Intl., returning Tue, Jul 1, priced at $217 found 2 days ago