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

Return flights

04 Dec - 07 Dec	Avianca
03 Dec - 07 Dec	Avianca
06 Dec - 22 Dec	Avianca
09 Dec - 23 Dec	Avianca
01 Dec - 07 Dec	Avianca
03 Dec - 10 Dec	Avianca
03 Dec - 10 Dec	LATAM Airlines Group	direct
11 Dec - 18 Dec	Avianca
05 Dec - 21 Dec	Avianca
03 Dec - 21 Dec	Avianca
25 Dec - 12 Jan	Aeromexico	direct
25 Dec - 06 Jan	Aeromexico	direct
25 Dec - 05 Jan	Aeromexico	direct
25 Dec - 07 Jan	Aeromexico	direct
08 Dec - 13 Jan	LATAM Airlines Group	direct
09 Dec - 14 Jan	Avianca
24 Dec - 03 Jan	Aeromexico	direct
25 Dec - 01 Jan	Aeromexico	direct
17 Dec - 03 Jan	Avianca
21 Dec - 02 Jan	LATAM Airlines Group	direct

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 376€

Return flights