Cheapest return flights from New York to San Juan in September from $225

Best time to book flights for New York (LGA) to San Juan (SJU) flights at AirHint

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

Return flights

08 Sep - 11 Sep American Airlines
06 Sep - 11 Sep American Airlines
06 Sep - 20 Sep United
07 Sep - 12 Sep United
02 Sep - 13 Sep United
26 Sep - 29 Sep American Airlines
20 Sep - 27 Sep Frontier Airlines
17 Sep - 21 Sep United
11 Sep - 13 Sep Frontier Airlines
06 Sep - 09 Sep Frontier Airlines
27 Sep - 15 Oct Frontier Airlines
24 Sep - 15 Oct Frontier 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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