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

Return flights

24 Oct - 26 Oct	Arajet
01 Oct - 08 Oct	Arajet
13 Oct - 19 Oct	Arajet
06 Oct - 19 Oct	Arajet
08 Oct - 15 Oct	Arajet
01 Oct - 14 Oct	Avianca
04 Oct - 12 Oct	Avianca
03 Oct - 13 Oct	Avianca
06 Oct - 13 Oct	Avianca
07 Oct - 20 Oct	Avianca
10 Oct - 01 Nov	Avianca
21 Oct - 20 Nov	Avianca
27 Oct - 14 Nov	Copa
27 Oct - 16 Nov	Copa
27 Oct - 17 Nov	Copa
27 Oct - 07 Nov	Copa
25 Oct - 09 Nov	Copa
17 Oct - 04 Nov	Arajet
28 Oct - 10 Nov	Avianca
28 Oct - 14 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 398€

Return flights