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

Return flights

09 Oct - 13 Oct	Avianca
01 Oct - 16 Oct	Avianca
06 Oct - 19 Oct	Avianca
08 Oct - 15 Oct	Avianca
04 Oct - 09 Oct	Avianca
06 Oct - 21 Oct	Avianca
07 Oct - 17 Oct	Avianca
07 Oct - 20 Oct	Avianca
06 Oct - 13 Oct	Avianca
09 Oct - 21 Oct	Avianca
21 Oct - 10 Nov	Avianca
29 Oct - 09 Nov	Arajet
24 Oct - 09 Nov	Arajet
21 Oct - 11 Nov	Avianca
15 Oct - 05 Nov	Avianca
31 Oct - 12 Nov	Avianca
29 Oct - 24 Nov	Avianca
18 Oct - 22 Nov	Avianca
07 Oct - 02 Nov	Avianca
27 Oct - 05 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 376€

Return flights