Cheapest return flights from San Jose to San Diego in December from $124

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

Return flights

22 Dec - 06 Jan Alaska Airlines direct
27 Dec - 07 Jan Alaska Airlines direct
22 Dec - 25 Dec Alaska Airlines direct
31 Dec - 05 Jan Alaska Airlines direct
22 Dec - 22 Dec Alaska Airlines direct
17 Dec - 29 Dec Alaska Airlines direct
24 Dec - 01 Jan Southwest Airlines direct
19 Dec - 25 Jan Alaska Airlines direct
21 Dec - 25 Dec Alaska Airlines direct
25 Dec - 29 Dec Hawaiian Airlines direct
25 Dec - 30 Dec Alaska Airlines direct
18 Dec - 19 Jan Hawaiian Airlines direct
15 Dec - 15 Dec Alaska Airlines direct
17 Dec - 17 Dec Alaska Airlines direct
16 Dec - 22 Dec Alaska Airlines direct
23 Dec - 24 Dec Southwest Airlines direct
25 Dec - 01 Jan Alaska Airlines direct
31 Dec - 04 Jan Hawaiian Airlines
31 Dec - 04 Jan Southwest Airlines direct
20 Dec - 05 Jan Alaska Airlines direct

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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