Cheapest return flights from New York to San Juan in September from $157

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

Return flights

23 Sep - 26 Sep Frontier Airlines direct
22 Sep - 25 Sep Frontier Airlines direct
21 Sep - 25 Sep Frontier Airlines direct
22 Sep - 26 Sep Frontier Airlines direct
01 Sep - 10 Sep Frontier Airlines direct
23 Sep - 30 Sep Frontier Airlines direct
08 Sep - 12 Sep Frontier Airlines direct
14 Sep - 19 Sep Frontier Airlines direct
14 Sep - 17 Sep Frontier Airlines direct
29 Sep - 02 Oct Frontier Airlines direct
24 Sep - 08 Oct United
03 Sep - 10 Sep Frontier Airlines direct
18 Sep - 02 Oct United
17 Sep - 02 Oct Spirit Airlines
17 Sep - 05 Oct Spirit Airlines
17 Sep - 03 Oct Spirit Airlines
17 Sep - 08 Oct Spirit Airlines
27 Sep - 01 Oct Frontier Airlines direct
27 Sep - 11 Oct United
20 Sep - 04 Oct United

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

Skyscanner

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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