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

Return flights

13 Aug - 27 Aug	Arajet
18 Aug - 28 Aug	Arajet
15 Aug - 23 Aug	Arajet
18 Aug - 23 Aug	Arajet
20 Aug - 24 Aug	Arajet
01 Aug - 07 Aug	Arajet
04 Aug - 12 Aug	Arajet
08 Aug - 10 Aug	Arajet
06 Aug - 10 Aug	Arajet
20 Aug - 26 Aug	Arajet
25 Aug - 01 Sep	Avianca
30 Aug - 07 Sep	Avianca
27 Aug - 03 Sep	Avianca
30 Aug - 06 Sep	Avianca

Also check the deals for one-way flights from Sao Paulo to Cancun in August.

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 August from 386€

Return flights