Cheapest return flights from New York to San Juan in September from $226

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

23 Sep - 08 Oct American Airlines
29 Sep - 31 Oct United
24 Sep - 09 Oct United
17 Sep - 22 Sep American Airlines
25 Sep - 25 Sep United
25 Sep - 04 Oct Spirit Airlines
03 Sep - 30 Sep American Airlines
18 Sep - 22 Sep American Airlines
26 Sep - 23 Oct American Airlines
16 Sep - 20 Sep Spirit Airlines
02 Sep - 18 Sep United
04 Sep - 24 Sep American Airlines
10 Sep - 18 Sep Spirit Airlines
25 Sep - 29 Sep Spirit Airlines
08 Sep - 15 Sep 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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