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

Return flights

21 Mar - 25 Mar	Avianca
21 Mar - 28 Mar	Avianca
31 Mar - 08 Apr	Spirit Airlines
27 Mar - 01 Apr	Spirit Airlines
19 Mar - 28 Mar	Copa
31 Mar - 06 Apr	Spirit Airlines
31 Mar - 02 Apr	Spirit Airlines
21 Mar - 08 Apr	Spirit Airlines
21 Mar - 30 Mar	Spirit Airlines
21 Mar - 31 Mar	Spirit Airlines
21 Mar - 26 Mar	Spirit Airlines
21 Mar - 29 Mar	Spirit Airlines
21 Mar - 06 Apr	Spirit Airlines
21 Mar - 02 Apr	Spirit Airlines
21 Mar - 22 Mar	Spirit Airlines

Also check the deals for one-way flights from San Juan 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 San Juan to San Jose in March from $249

Return flights