Cheapest return flights from San Jose to San Diego in December from $123

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

Return flights

23 Dec - 06 Jan Alaska Airlines direct
23 Dec - 31 Dec Alaska Airlines direct
24 Dec - 31 Dec Alaska Airlines direct
29 Dec - 01 Jan Alaska Airlines direct
29 Dec - 02 Jan Alaska Airlines direct
27 Dec - 30 Dec Alaska Airlines direct
27 Dec - 03 Jan Alaska Airlines direct
12 Dec - 20 Dec Alaska Airlines direct
01 Dec - 07 Dec Alaska Airlines direct
26 Dec - 08 Jan Alaska Airlines direct
20 Dec - 10 Jan Alaska Airlines direct
22 Dec - 29 Dec Alaska Airlines direct
19 Dec - 21 Dec Alaska Airlines direct
25 Dec - 02 Jan Alaska Airlines

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