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

Return flights

15 Dec - 17 Dec	Copa
15 Dec - 18 Dec	Copa
16 Dec - 23 Dec	Copa
24 Dec - 31 Dec	Aeromexico
24 Dec - 28 Dec	Copa
22 Dec - 30 Dec	Copa
21 Dec - 28 Dec	Copa
15 Dec - 23 Jan	Copa
30 Dec - 14 Jan	Copa
30 Dec - 07 Jan	Copa
22 Dec - 01 Jan	Copa
18 Dec - 23 Dec	Copa
18 Dec - 25 Dec	Copa
18 Dec - 25 Dec	Aeromexico	direct
25 Dec - 12 Jan	Aeromexico	direct
22 Dec - 01 Jan	Aeromexico	direct
24 Dec - 06 Jan	Aeromexico	direct
17 Dec - 08 Jan	Aeromexico	direct
24 Dec - 02 Jan	Copa
30 Dec - 07 Jan	Aeromexico	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 $478

Return flights