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

Return flights

16 Jul - 21 Jul	Frontier Airlines
16 Jul - 23 Jul	Frontier Airlines
21 Jul - 23 Jul	Avianca
25 Jul - 01 Aug	Avianca
26 Jul - 08 Aug	Avianca
27 Jul - 30 Jul	Avianca
22 Jul - 30 Jul	Avianca
26 Jul - 30 Jul	Avianca
29 Jul - 03 Aug	Avianca
22 Jul - 28 Jul	Avianca
25 Jul - 29 Jul	Avianca
26 Jul - 29 Jul	Avianca
23 Jul - 29 Jul	Avianca
31 Jul - 05 Aug	Avianca
20 Jul - 14 Aug	jetBlue
26 Jul - 02 Aug	Frontier Airlines
17 Jul - 07 Aug	Frontier Airlines

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

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 July from 250€

Return flights