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

Return flights

02 Oct - 02 Nov	Aeromexico
01 Oct - 15 Oct	Aeromexico
23 Oct - 27 Oct	Aeromexico
20 Oct - 29 Oct	Aeromexico
07 Oct - 27 Oct	Aeromexico
11 Oct - 19 Oct	Aeromexico
01 Oct - 01 Nov	Aeromexico
03 Oct - 03 Nov	Aeromexico
04 Oct - 18 Oct	Copa
09 Oct - 16 Oct	Copa
04 Oct - 15 Oct	Copa
02 Oct - 09 Oct	Copa
01 Oct - 22 Oct	Copa
30 Oct - 20 Nov	Avianca
30 Oct - 07 Nov	Copa
28 Oct - 08 Nov	Avianca
19 Oct - 02 Nov	Aerolineas Argentinas

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 $553

Return flights