Cheapest return flights from San Francisco to San Jose in January from 311€

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

Return flights

21 Jan - 28 Jan Frontier Airlines
21 Jan - 01 Feb Frontier Airlines
05 Jan - 12 Jan Frontier Airlines
05 Jan - 22 Jan Frontier Airlines
13 Jan - 21 Jan Frontier Airlines
27 Jan - 02 Feb Frontier Airlines
11 Jan - 20 Jan Frontier Airlines
17 Jan - 25 Jan Frontier Airlines
05 Jan - 22 Jan United direct
13 Jan - 21 Jan United direct
21 Jan - 28 Jan United direct
21 Jan - 01 Feb United direct
03 Jan - 07 Jan Alaska Airlines
27 Jan - 02 Feb United direct

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

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