Cheapest return flights from San Diego to San Jose in December from $531

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

Return flights

30 Dec - 10 Jan United
09 Dec - 15 Dec United
16 Dec - 23 Dec United
15 Dec - 01 Jan Alaska Airlines
21 Dec - 02 Jan Alaska Airlines
27 Dec - 03 Jan Alaska Airlines
23 Dec - 04 Jan Sun Country Airlines

Also check the deals for one-way flights from San Diego 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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