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

Return flights

29 Dec - 13 Jan	United
24 Dec - 30 Dec	Delta	direct
24 Dec - 29 Dec	United	direct
29 Dec - 15 Jan	Viva
29 Dec - 12 Jan	Viva
22 Dec - 24 Dec	Viva
31 Dec - 15 Jan	Spirit Airlines
29 Dec - 17 Jan	Viva
29 Dec - 16 Jan	Viva
22 Dec - 27 Dec	Viva
31 Dec - 12 Jan	Spirit Airlines
31 Dec - 08 Jan	United
21 Dec - 26 Dec	Delta	direct
29 Dec - 09 Jan	Viva
29 Dec - 10 Jan	Viva
20 Dec - 24 Dec	United	direct
23 Dec - 26 Dec	United
22 Dec - 24 Dec	Delta	direct
20 Dec - 30 Dec	Delta	direct
25 Dec - 29 Dec	United	direct

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

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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Cheapest return flights from Los Angeles to San Jose in December from 362€

Return flights