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

Return flights

02 Mar - 09 Mar	Volaris Costa Rica
16 Mar - 23 Mar	Volaris Costa Rica
21 Mar - 30 Mar	Volaris Costa Rica
01 Mar - 07 Mar	Volaris Costa Rica
04 Mar - 10 Mar	Alaska Airlines
15 Mar - 21 Mar	Volaris Costa Rica
04 Mar - 14 Mar	Alaska Airlines
02 Mar - 09 Mar	Alaska Airlines	direct
04 Mar - 10 Mar	Alaska Airlines	direct
21 Mar - 29 Mar	Volaris Costa Rica
28 Mar - 04 Apr	Avianca
28 Mar - 04 Apr	Alaska Airlines	direct
28 Mar - 05 Apr	Alaska Airlines	direct

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

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 March from $263

Return flights