AirHint found the following cheapest return flights from Sao Paulo (GRU) to Mexico City (MEX) in September 2026 (see full year).

Return flights

24 Sep - 30 Sep	Copa
23 Sep - 30 Sep	Copa
15 Sep - 18 Sep	Copa
09 Sep - 30 Sep	Copa
08 Sep - 17 Sep	Copa
22 Sep - 28 Sep	Copa
14 Sep - 22 Sep	Copa
10 Sep - 16 Sep	Copa
09 Sep - 17 Sep	Copa
25 Sep - 27 Sep	Copa
15 Sep - 03 Oct	Avianca
15 Sep - 05 Oct	Avianca
22 Sep - 03 Oct	Avianca
22 Sep - 05 Oct	Avianca
27 Sep - 03 Oct	Avianca
27 Sep - 05 Oct	Avianca
22 Sep - 08 Oct	Avianca
27 Sep - 08 Oct	Avianca
16 Sep - 03 Oct	Avianca
16 Sep - 05 Oct	Avianca

Also check the deals for one-way flights from Sao Paulo to Mexico City in September.

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 September from 428€

Return flights