Cheapest one-way flights from Denver to San Jose in December from 105€

AirHint found the following cheapest one-way flights from Denver (DEN) to San Jose (SJO) in December 2025 (see full year).

One-Way flights

05 Dec United direct
31 Dec United
03 Dec United
06 Dec Frontier Airlines
06 Dec United direct
02 Dec Southwest Airlines
31 Dec United direct
30 Dec Frontier Airlines
29 Dec United
22 Dec Frontier Airlines

Also check the deals for return flights from Denver to San Jose in December.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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