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

Return flights

01 Dec - 08 Dec	Arajet
02 Dec - 11 Dec	Avianca
03 Dec - 08 Dec	Avianca
04 Dec - 09 Dec	Avianca
06 Dec - 12 Dec	Avianca
28 Dec - 04 Jan	Arajet
04 Dec - 09 Jan	Avianca
27 Dec - 05 Jan	Avianca
19 Dec - 27 Dec	Avianca
21 Dec - 02 Jan	Avianca
13 Dec - 21 Dec	Avianca
14 Dec - 21 Dec	Avianca
15 Dec - 04 Jan	Arajet
15 Dec - 05 Jan	Arajet
02 Dec - 11 Dec	LATAM Airlines Group	direct
19 Dec - 02 Jan	Avianca
14 Dec - 21 Dec	LATAM Airlines Group	direct

Also check the deals for one-way flights from Mexico City to Sao Paulo 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 Mexico City to Sao Paulo in December from 505€

Return flights