Cheapest return flights from New York to San Juan in September from 185€

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

Return flights

13 Sep - 17 Sep Frontier Airlines
24 Sep - 27 Sep Frontier Airlines
20 Sep - 20 Sep Frontier Airlines
17 Sep - 20 Sep Frontier Airlines
16 Sep - 20 Sep American Airlines
23 Sep - 25 Sep United
25 Sep - 02 Oct Spirit Airlines
25 Sep - 26 Sep Spirit Airlines
18 Sep - 26 Sep Spirit Airlines
18 Sep - 02 Oct Spirit Airlines
17 Sep - 22 Sep Frontier Airlines
06 Sep - 18 Sep Spirit Airlines
20 Sep - 02 Oct Spirit Airlines
27 Sep - 02 Oct Spirit Airlines
27 Sep - 16 Oct Spirit Airlines
23 Sep - 07 Oct United
28 Sep - 06 Oct Spirit Airlines
17 Sep - 01 Oct United
26 Sep - 05 Oct Frontier Airlines
28 Sep - 02 Oct Spirit Airlines

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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