AirHint found the following cheapest return flights from New York (JFK) to Mexico City (MEX) in September 2025 (see full year).

Return flights

24 Sep - 30 Sep	Viva	direct
25 Sep - 30 Sep	Viva	direct
19 Sep - 30 Sep	Viva	direct
27 Sep - 30 Sep	Viva	direct
23 Sep - 30 Sep	Viva	direct
22 Sep - 30 Sep	Avianca
22 Sep - 24 Sep	Avianca
19 Sep - 22 Sep	Viva	direct
19 Sep - 24 Sep	Viva	direct
10 Sep - 18 Sep	Frontier Airlines
25 Sep - 01 Oct	Frontier Airlines
28 Sep - 02 Oct	Aeromexico
29 Sep - 02 Oct	Aeromexico
26 Sep - 02 Oct	Aeromexico
24 Sep - 21 Oct	Viva	direct
26 Sep - 02 Oct	Viva	direct
24 Sep - 08 Oct	Viva	direct
24 Sep - 07 Oct	Viva	direct
30 Sep - 14 Oct	Aeromexico
28 Sep - 02 Oct	American Airlines	direct

Also check the deals for one-way flights from New York to Mexico City 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 Mexico City in September from $340

Return flights