Flights to San Jose from Boulder

View ฿3,540 flight on Tue, 5 Aug 2025Opens in a new window

Popular airlines from Boulder to San Jose

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Cheap Flights from Boulder (DEN) to San Jose (SJC)

Prices were available within the past 7 days and start at ฿3,540 for one-way flights and ฿7,075 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 5 Aug - Wed, 6 Aug
DEN
Denver
SFO
San Francisco
฿7,075 Return, found 4 days ago
฿7,075
Return
found 4 days ago
Select Delta flight, departing Tue, 5 Aug from Denver to San Francisco, returning Wed, 6 Aug, priced at ฿7,075 found 4 days ago
Delta
Tue, 5 Aug - Wed, 6 Aug
DEN
Denver
SFO
San Francisco
฿7,580 Return, found 4 days ago
฿7,580
Return
found 4 days ago
Select Delta flight, departing Tue, 5 Aug from Denver to San Francisco, returning Wed, 6 Aug, priced at ฿7,580 found 4 days ago
American Airlines
Tue, 5 Aug - Wed, 6 Aug
DEN
Denver
SFO
San Francisco
฿7,900 Return, found 4 days ago
฿7,900
Return
found 4 days ago
Select American Airlines flight, departing Tue, 5 Aug from Denver to San Francisco, returning Wed, 6 Aug, priced at ฿7,900 found 4 days ago
United
Tue, 5 Aug - Wed, 6 Aug
DEN
Denver
SFO
San Francisco
฿8,070 Return, found 4 days ago
฿8,070
Return
found 4 days ago
Select United flight, departing Tue, 5 Aug from Denver to San Francisco, returning Wed, 6 Aug, priced at ฿8,070 found 4 days ago
Delta
Mon, 14 Jul - Fri, 18 Jul
DEN
Denver
SFO
San Francisco
฿8,645 Return, found 6 days ago
฿8,645
Return
found 6 days ago
Select Delta flight, departing Mon, 14 Jul from Denver to San Francisco, returning Fri, 18 Jul, priced at ฿8,645 found 6 days ago
United
Tue, 5 Aug - Wed, 6 Aug
DEN
Denver
SFO
San Francisco
฿8,720 Return, found 4 days ago
฿8,720
Return
found 4 days ago
Select United flight, departing Tue, 5 Aug from Denver to San Francisco, returning Wed, 6 Aug, priced at ฿8,720 found 4 days ago

Find the cheapest month to fly from Denver (DEN) to San Jose (SJC)

March is typically the cheapest month to fly

From ฿1,875 - ฿12,951 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.