Cheapest return flights from San Francisco to San Jose in January from $363

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
07 Jan - 14 Jan Frontier Airlines
05 Jan - 12 Jan Frontier Airlines
11 Jan - 20 Jan Frontier Airlines
22 Jan - 29 Jan Alaska Airlines
21 Jan - 28 Jan United direct
11 Jan - 20 Jan United direct
07 Jan - 14 Jan United direct
21 Jan - 01 Feb United direct
05 Jan - 12 Jan United direct
17 Jan - 22 Jan United direct

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

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