Cheapest return flights from San Francisco to San Jose in December from $635

AirHint found the following cheapest return flights from San Francisco (SFO) to San Jose (SJO) in December 2025 (see full year).

Return flights

11 Dec - 12 Jan Alaska Airlines
14 Dec - 21 Dec Flair Airlines
11 Dec - 12 Jan United direct
12 Dec - 12 Jan United direct
29 Dec - 09 Jan United
30 Dec - 09 Jan United direct
24 Dec - 29 Dec Avianca
20 Dec - 30 Dec Alaska Airlines
23 Dec - 01 Jan Alaska Airlines
25 Dec - 02 Jan Alaska Airlines
22 Dec - 29 Dec Alaska Airlines
23 Dec - 03 Jan United
20 Dec - 03 Jan Delta

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

Skyscanner

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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