AirHint found the following cheapest return flights from Rio De Janeiro (GIG) to Cancun (CUN) in September 2025 (see full year).

Return flights

27 Sep - 11 Oct	GOL Linhas Aéreas
23 Sep - 30 Sep	Copa
22 Sep - 29 Sep	Copa
19 Sep - 23 Sep	Copa
25 Sep - 03 Oct	Copa
24 Sep - 01 Oct	Copa
16 Sep - 24 Sep	Copa
18 Sep - 24 Sep	Copa
18 Sep - 25 Sep	Copa
15 Sep - 19 Sep	Copa
25 Sep - 02 Oct	Copa
27 Sep - 03 Oct	Copa
17 Sep - 24 Sep	Copa
10 Sep - 17 Sep	Avianca
24 Sep - 30 Sep	GOL Linhas Aéreas
28 Sep - 05 Oct	LATAM Airlines Group

Also check the deals for one-way flights from Rio De Janeiro to Cancun in September.

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 Rio De Janeiro to Cancun in September from $466

Return flights