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

Return flights

08 Sep - 17 Sep	Avianca
11 Sep - 16 Sep	Avianca
16 Sep - 28 Sep	Avianca
14 Sep - 22 Sep	Avianca
03 Sep - 13 Sep	Copa
17 Sep - 27 Sep	Copa
29 Sep - 08 Oct	Copa
04 Sep - 02 Oct	Copa
19 Sep - 26 Sep	Avianca
30 Sep - 02 Oct	Avianca
30 Sep - 08 Oct	Avianca
09 Sep - 24 Sep	Avianca
30 Sep - 10 Oct	Avianca
30 Sep - 20 Oct	Avianca
09 Sep - 22 Sep	Avianca
09 Sep - 13 Sep	Avianca
26 Sep - 02 Oct	Avianca
26 Sep - 08 Oct	Avianca
26 Sep - 10 Oct	Avianca
14 Sep - 02 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.

Book a cheap hotel in Mexico City

Cheap car rent in Mexico City

Cheapest return flights from Sao Paulo to Mexico City in September from 409€

Return flights