Cheapest return flights from San Juan to New York in September from $124

AirHint found the following cheapest return flights from San Juan (SJU) to New York (JFK) in September 2025 (see full year).

Return flights

26 Sep - 28 Sep Frontier Airlines direct
25 Sep - 29 Sep Frontier Airlines direct
24 Sep - 28 Sep Frontier Airlines direct
27 Sep - 28 Sep Frontier Airlines direct
30 Sep - 04 Oct Frontier Airlines direct
20 Sep - 29 Sep Frontier Airlines direct
23 Sep - 29 Sep Frontier Airlines direct
22 Sep - 04 Oct Frontier Airlines direct
22 Sep - 27 Sep Frontier Airlines direct
27 Sep - 11 Oct Frontier Airlines direct
30 Sep - 03 Oct Frontier Airlines direct
22 Sep - 29 Sep Frontier Airlines direct
19 Sep - 21 Sep Frontier Airlines direct
19 Sep - 25 Sep Frontier Airlines direct
28 Sep - 01 Oct Frontier Airlines direct

Also check the deals for one-way flights from San Juan to New York 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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