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

Return flights

03 Mar - 06 Mar	Frontier Airlines
04 Mar - 06 Mar	Frontier Airlines
04 Mar - 11 Mar	Frontier Airlines
02 Mar - 06 Mar	Frontier Airlines
02 Mar - 11 Mar	Frontier Airlines
13 Mar - 19 Mar	jetBlue	direct
07 Mar - 09 Mar	Frontier Airlines
03 Mar - 24 Mar	Avianca
04 Mar - 10 Mar	Avianca
15 Mar - 18 Mar	jetBlue	direct
25 Mar - 07 Apr	Copa
25 Mar - 08 Apr	Copa
24 Mar - 07 Apr	Copa
30 Mar - 15 Apr	Copa
22 Mar - 05 Apr	Copa
30 Mar - 03 Apr	Copa
30 Mar - 06 Apr	Copa
29 Mar - 08 Apr	Copa
30 Mar - 05 Apr	Copa
31 Mar - 05 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 $229

Return flights