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

Return flights

21 Oct - 28 Oct	United
14 Oct - 28 Oct	United
15 Oct - 29 Oct	United
29 Oct - 01 Nov	United
31 Oct - 03 Nov	United
18 Oct - 01 Nov	United
29 Oct - 12 Nov	United
31 Oct - 14 Nov	United
01 Oct - 08 Oct	United
16 Oct - 20 Oct	United
16 Oct - 30 Oct	United
12 Oct - 18 Oct	United
17 Oct - 20 Oct	United
17 Oct - 21 Oct	United
16 Oct - 23 Oct	United
20 Oct - 03 Nov	United
27 Oct - 10 Nov	United
24 Oct - 07 Nov	United
27 Oct - 14 Nov	Spirit Airlines
27 Oct - 03 Nov	Spirit Airlines

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

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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Cheapest return flights from New York to San Juan in October from $165

Return flights