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

Return flights

12 Sep - 27 Sep	Spirit Airlines
12 Sep - 20 Sep	Spirit Airlines
19 Sep - 27 Sep	Spirit Airlines
05 Sep - 20 Sep	Spirit Airlines
06 Sep - 09 Sep	Aeromexico
12 Sep - 17 Sep	Aeromexico
14 Sep - 17 Sep	Aeromexico
21 Sep - 25 Sep	Aeromexico
16 Sep - 23 Sep	Aeromexico
06 Sep - 11 Sep	Aeromexico
25 Sep - 02 Oct	Aeromexico
30 Sep - 08 Oct	Aeromexico
29 Sep - 04 Oct	Aeromexico
26 Sep - 08 Oct	Spirit Airlines
29 Sep - 02 Oct	Delta
26 Sep - 07 Oct	Spirit Airlines
19 Sep - 08 Oct	Spirit Airlines
19 Sep - 07 Oct	Spirit Airlines
22 Sep - 08 Oct	Spirit Airlines
24 Sep - 08 Oct	Spirit Airlines

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

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 Cancun in September from $256

Return flights