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

Return flights

10 Dec - 18 Dec	Arajet
01 Dec - 12 Dec	Aeromexico
03 Dec - 06 Dec	LATAM Airlines Group
03 Dec - 09 Dec	Arajet
01 Dec - 25 Dec	Arajet
09 Dec - 30 Dec	Arajet
03 Dec - 11 Dec	Arajet
05 Dec - 11 Dec	Arajet
03 Dec - 10 Dec	LATAM Airlines Group
05 Dec - 26 Dec	Aeromexico
11 Dec - 31 Jan	LATAM Airlines Group
04 Dec - 14 Jan	Aeromexico
13 Dec - 07 Jan	LATAM Airlines Group
24 Dec - 14 Jan	GOL Linhas Aéreas
16 Dec - 05 Jan	LATAM Airlines Group
31 Dec - 13 Jan	Sky Airline
24 Dec - 01 Jan	GOL Linhas Aéreas
31 Dec - 11 Jan	Sky Airline
17 Dec - 05 Jan	LATAM Airlines Group
24 Dec - 07 Jan	Arajet

Also check the deals for one-way flights from Sao Paulo to Cancun 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 Cancun in December from 370€

Return flights