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

Return flights

07 Jan - 14 Jan	Volaris Costa Rica
27 Jan - 01 Feb	Volaris El Salvador
28 Jan - 01 Feb	Volaris El Salvador
02 Jan - 10 Jan	Viva
01 Jan - 18 Jan	Volaris El Salvador
07 Jan - 14 Jan	Alaska Airlines	direct
28 Jan - 01 Feb	Alaska Airlines	direct
04 Jan - 18 Jan	Volaris Costa Rica
04 Jan - 11 Jan	Volaris Costa Rica
27 Jan - 01 Feb	Alaska Airlines	direct
04 Jan - 18 Jan	Alaska Airlines	direct
01 Jan - 18 Jan	Alaska Airlines	direct
01 Jan - 19 Feb	United
04 Jan - 11 Jan	Alaska Airlines	direct

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 $302

Return flights