Cheapest return flights from New York to San Jose in September from $311

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

Return flights

17 Sep - 21 Sep Avianca
03 Sep - 10 Sep American Airlines
02 Sep - 10 Sep American Airlines
30 Sep - 07 Oct Avianca
29 Sep - 03 Oct Avianca
29 Sep - 03 Oct jetBlue direct
18 Sep - 21 Sep Avianca
02 Sep - 09 Sep American Airlines
03 Sep - 09 Sep American Airlines
18 Sep - 21 Sep jetBlue direct
17 Sep - 21 Sep jetBlue direct
19 Sep - 26 Sep Copa
17 Sep - 24 Sep Copa

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

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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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