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

Return flights

07 Mar - 10 Mar	Frontier Airlines
07 Mar - 09 Mar	Frontier Airlines
03 Mar - 10 Mar	Frontier Airlines
05 Mar - 10 Mar	American Airlines
03 Mar - 18 Mar	Avianca
09 Mar - 18 Mar	Avianca
07 Mar - 11 Mar	Frontier Airlines
06 Mar - 10 Mar	Frontier Airlines
03 Mar - 06 Mar	Copa
02 Mar - 10 Mar	Copa
30 Mar - 02 Apr	Copa
30 Mar - 07 Apr	Copa
30 Mar - 15 Apr	Copa
22 Mar - 08 Apr	Copa
26 Mar - 02 Apr	Copa
31 Mar - 09 Apr	Copa
19 Mar - 05 Apr	Copa
30 Mar - 05 Apr	Copa
22 Mar - 05 Apr	Copa
30 Mar - 04 Apr	Copa

Also check the deals for one-way flights from New York 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 New York to San Jose in March from 218€

Return flights