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

Return flights

05 Dec - 09 Dec	Spirit Airlines
31 Dec - 10 Jan	Spirit Airlines
11 Dec - 13 Dec	Spirit Airlines
30 Dec - 10 Jan	Spirit Airlines
04 Dec - 13 Dec	Spirit Airlines
09 Dec - 16 Dec	United
04 Dec - 06 Dec	Spirit Airlines
05 Dec - 13 Dec	Alaska Airlines
05 Dec - 07 Dec	United	direct
05 Dec - 13 Dec	United	direct
09 Dec - 19 Dec	Spirit Airlines
07 Dec - 13 Dec	Spirit Airlines
28 Dec - 10 Jan	Spirit Airlines
31 Dec - 08 Jan	United
31 Dec - 09 Jan	Spirit Airlines
30 Dec - 09 Jan	Spirit Airlines
01 Dec - 01 Jan	Frontier Airlines
24 Dec - 10 Jan	Spirit Airlines
15 Dec - 17 Jan	Copa
31 Dec - 07 Jan	United

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.

Book a cheap hotel in San Jose

Cheap car rent in San Jose

Cheapest return flights from Los Angeles to San Jose in December from 244€

Return flights