AirHint found the following cheapest return flights from Cancun (CUN) to Buenos Aires (EZE) in October 2025 (see full year).

Return flights

09 Oct - 16 Oct	Aeromexico
20 Oct - 27 Oct	Aeromexico
30 Oct - 08 Nov	Aeromexico
20 Oct - 03 Nov	Aeromexico
19 Oct - 03 Nov	Aeromexico
12 Oct - 03 Nov	Aeromexico
31 Oct - 09 Nov	Aeromexico
14 Oct - 23 Oct	Avianca
09 Oct - 25 Oct	Copa
21 Oct - 28 Oct	Copa
09 Oct - 20 Oct	Copa
18 Oct - 01 Nov	Arajet
19 Oct - 26 Oct	Aeromexico
03 Oct - 24 Oct	Copa
28 Oct - 16 Nov	Avianca
14 Oct - 21 Oct	Avianca
28 Oct - 04 Nov	Avianca
02 Oct - 23 Oct	Avianca
20 Oct - 06 Nov	Avianca

Also check the deals for one-way flights from Cancun to Buenos Aires 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 Cancun to Buenos Aires in October from $557

Return flights