Cheapest return flights from Denver to San Jose in January from $286

AirHint found the following cheapest return flights from Denver (DEN) to San Jose (SJO) in January 2026 (see full year).

Return flights

22 Jan - 26 Jan United
02 Jan - 10 Jan American Airlines
19 Jan - 27 Jan United
12 Jan - 20 Jan United
22 Jan - 25 Jan Copa
10 Jan - 13 Jan Frontier Airlines
30 Jan - 08 Feb United
31 Jan - 07 Feb Southwest Airlines
24 Jan - 31 Jan Southwest Airlines
03 Jan - 10 Jan Frontier Airlines
03 Jan - 06 Jan Frontier Airlines

Also check the deals for one-way flights from Denver to San Jose in January.

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