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

Return flights

15 Dec - 16 Dec	Aeromexico
15 Dec - 29 Dec	Aeromexico
14 Dec - 19 Dec	Copa
18 Dec - 25 Dec	Aeromexico
18 Dec - 24 Dec	Aeromexico
14 Dec - 24 Dec	Aeromexico
15 Dec - 21 Dec	Aeromexico
14 Dec - 21 Dec	Copa
19 Dec - 26 Dec	Copa
19 Dec - 29 Dec	Copa
16 Dec - 05 Jan	Aeromexico
17 Dec - 05 Jan	Aeromexico
25 Dec - 07 Jan	Aeromexico
24 Dec - 08 Jan	Aeromexico
17 Dec - 02 Jan	Aeromexico
24 Dec - 07 Jan	Aeromexico
22 Dec - 05 Jan	Aeromexico
23 Dec - 01 Jan	Aeromexico
25 Dec - 09 Jan	Aeromexico
25 Dec - 10 Jan	Aeromexico

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.

Book a cheap hotel in Cancun

Cheap car rent in Cancun

Cheapest return flights from Sao Paulo to Cancun in December from $493

Return flights