AirHint found the following cheapest return flights from New York (JFK) to San Jose (SJO) in December 2025 (see full year).

Return flights

06 Dec - 18 Dec	jetBlue	direct
09 Dec - 15 Dec	Delta
04 Dec - 10 Dec	Copa
04 Dec - 09 Dec	Copa
09 Dec - 16 Dec	Avianca
02 Dec - 09 Dec	Avianca
08 Dec - 17 Dec	Avianca
01 Dec - 05 Dec	Avianca
04 Dec - 12 Dec	Copa
03 Dec - 10 Dec	Avianca
27 Dec - 17 Jan	Copa
30 Dec - 05 Jan	Copa
27 Dec - 08 Jan	Avianca
22 Dec - 08 Jan	Frontier Airlines
20 Dec - 06 Jan	Frontier Airlines
26 Dec - 05 Jan	Copa
27 Dec - 03 Jan	Copa
26 Dec - 02 Jan	Copa
27 Dec - 02 Jan	Copa
26 Dec - 04 Jan	Copa

Also check the deals for one-way flights from New York to San Jose in December.

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 December from 208€

Return flights