AirHint found the following cheapest return flights from Sao Paulo (GRU) to Mexico City (MEX) in October 2025 (see full year).

Return flights

08 Oct - 15 Oct	Avianca
01 Oct - 14 Oct	Avianca
07 Oct - 12 Oct	Avianca
05 Oct - 11 Oct	Avianca
06 Oct - 10 Oct	Avianca
02 Oct - 05 Oct	Copa
05 Oct - 08 Oct	Avianca
06 Oct - 13 Oct	Avianca
07 Oct - 20 Oct	Avianca
06 Oct - 15 Oct	Avianca
15 Oct - 15 Nov	Copa
22 Oct - 02 Nov	Arajet
20 Oct - 09 Nov	Arajet
30 Oct - 09 Nov	Copa
24 Oct - 04 Nov	Arajet
24 Oct - 09 Nov	Arajet
31 Oct - 09 Nov	Avianca
21 Oct - 06 Nov	Avianca
21 Oct - 10 Nov	Avianca
24 Oct - 02 Nov	Avianca

Also check the deals for one-way flights from Sao Paulo to Mexico City 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 Sao Paulo to Mexico City in October from 384€

Return flights