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

Return flights

04 Dec - 16 Dec	Avianca
01 Dec - 15 Dec	Avianca
05 Dec - 07 Dec	jetBlue
05 Dec - 07 Dec	jetBlue	direct
04 Dec - 07 Dec	jetBlue
07 Dec - 13 Dec	jetBlue
07 Dec - 13 Dec	jetBlue	direct
04 Dec - 07 Dec	jetBlue	direct
12 Dec - 17 Dec	American Airlines
31 Dec - 07 Jan	jetBlue
31 Dec - 07 Jan	jetBlue	direct
30 Dec - 06 Jan	Avianca
23 Dec - 30 Dec	jetBlue
26 Dec - 06 Jan	Avianca
28 Dec - 01 Jan	Avianca
30 Dec - 06 Jan	United	direct
27 Dec - 03 Jan	Allegiant Air
24 Dec - 01 Jan	American Airlines
25 Dec - 01 Jan	American Airlines
25 Dec - 02 Jan	Volaris El Salvador

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 $295

Return flights