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

Return flights

12 Aug - 15 Aug	Avianca
31 Aug - 08 Sep	jetBlue	direct
20 Aug - 27 Aug	Avianca
19 Aug - 27 Aug	Avianca
31 Aug - 14 Sep	jetBlue	direct
17 Aug - 24 Aug	Avianca
22 Aug - 24 Aug	Avianca
13 Aug - 10 Sep	Avianca
21 Aug - 22 Aug	Avianca
21 Aug - 28 Aug	Avianca
28 Aug - 06 Sep	Avianca
09 Aug - 14 Sep	Avianca
25 Aug - 07 Sep	Avianca
12 Aug - 09 Sep	Avianca
07 Aug - 17 Aug	Avianca
15 Aug - 11 Sep	Avianca
15 Aug - 13 Sep	Avianca
06 Aug - 24 Aug	Avianca
12 Aug - 14 Aug	Avianca
26 Aug - 02 Sep	jetBlue

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

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 August from $271

Return flights