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

Return flights

17 Oct - 26 Oct	Arajet
17 Oct - 08 Nov	Arajet
01 Oct - 05 Oct	Arajet
06 Oct - 23 Oct	Arajet
10 Oct - 18 Oct	Arajet
29 Oct - 09 Nov	Arajet
29 Oct - 16 Nov	Arajet
21 Oct - 30 Nov	Aeromexico	direct
24 Oct - 09 Nov	Arajet
20 Oct - 09 Nov	Arajet
24 Oct - 04 Nov	Arajet
04 Oct - 12 Oct	Copa
06 Oct - 12 Oct	Copa
04 Oct - 09 Oct	Copa
02 Oct - 05 Oct	Copa
05 Oct - 23 Oct	Copa
08 Oct - 18 Oct	Copa
09 Oct - 04 Nov	Copa
16 Oct - 02 Nov	Copa
16 Oct - 07 Nov	Copa

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 $457

Return flights