AirHint found the following cheapest return flights from Los Angeles (LAX) to San Jose (SJO) in January 2026 (see full year).

Return flights

17 Jan - 27 Jan	Volaris El Salvador
26 Jan - 05 Feb	Alaska Airlines	direct
16 Jan - 23 Jan	Avianca
12 Jan - 19 Jan	Spirit Airlines
24 Jan - 07 Feb	Avianca
20 Jan - 31 Jan	Southwest Airlines
01 Jan - 22 Jan	Alaska Airlines	direct
17 Jan - 27 Jan	Alaska Airlines	direct
27 Jan - 07 Feb	Copa
31 Jan - 07 Feb	Copa
04 Jan - 10 Jan	Volaris Costa Rica
12 Jan - 30 Jan	Viva
16 Jan - 23 Jan	Alaska Airlines	direct
02 Jan - 16 Jan	Volaris El Salvador
20 Jan - 09 Feb	Spirit Airlines
20 Jan - 08 Feb	Spirit Airlines
19 Jan - 09 Feb	Spirit Airlines
19 Jan - 08 Feb	Spirit Airlines

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

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 January from $255

Return flights