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

Return flights

01 Dec - 10 Dec	Copa
01 Dec - 05 Jan	Avianca
08 Dec - 17 Dec	GOL Linhas Aéreas
11 Dec - 21 Dec	GOL Linhas Aéreas
22 Dec - 29 Dec	Avianca
25 Dec - 01 Jan	Avianca
26 Dec - 02 Jan	Avianca
27 Dec - 09 Jan	Avianca
25 Dec - 04 Jan	Avianca
24 Dec - 01 Jan	Avianca
23 Dec - 01 Jan	Avianca

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

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 December from $507

Return flights