Flights to San Jose from Boulder

View ฿3,190 flight on Wed, 17 Dec 2025Opens in a new window

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

Prices were available within the past 7 days and start at ฿3,190 for one-way flights and ฿7,035 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, 3 Sep - Mon, 8 Sep
DEN
Denver
SFO
San Francisco
฿7,035 Return, found 5 days ago
฿7,035
Return
found 5 days ago
Select United flight, departing Wed, 3 Sep from Denver to San Francisco, returning Mon, 8 Sep, priced at ฿7,035 found 5 days ago
Delta
Wed, 3 Sep - Mon, 8 Sep
DEN
Denver
SFO
San Francisco
฿7,155 Return, found 5 days ago
฿7,155
Return
found 5 days ago
Select Delta flight, departing Wed, 3 Sep from Denver to San Francisco, returning Mon, 8 Sep, priced at ฿7,155 found 5 days ago
United
Wed, 3 Sep - Mon, 8 Sep
DEN
Denver
SFO
San Francisco
฿7,295 Return, found 5 days ago
฿7,295
Return
found 5 days ago
Select United flight, departing Wed, 3 Sep from Denver to San Francisco, returning Mon, 8 Sep, priced at ฿7,295 found 5 days ago
United
Sat, 6 Sep - Mon, 8 Sep
DEN
Denver
SFO
San Francisco
฿7,330 Return, found 6 days ago
฿7,330
Return
found 6 days ago
Select United flight, departing Sat, 6 Sep from Denver to San Francisco, returning Mon, 8 Sep, priced at ฿7,330 found 6 days ago
American Airlines
Wed, 3 Sep - Mon, 8 Sep
DEN
Denver
SFO
San Francisco
฿7,360 Return, found 5 days ago
฿7,360
Return
found 5 days ago
Select American Airlines flight, departing Wed, 3 Sep from Denver to San Francisco, returning Mon, 8 Sep, priced at ฿7,360 found 5 days ago
Delta
Wed, 3 Sep - Mon, 8 Sep
DEN
Denver
SFO
San Francisco
฿7,420 Return, found 5 days ago
฿7,420
Return
found 5 days ago
Select Delta flight, departing Wed, 3 Sep from Denver to San Francisco, returning Mon, 8 Sep, priced at ฿7,420 found 5 days ago

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

March is typically the cheapest month to fly

From ฿2,033 - ฿14,960 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.