AirHint found the following cheapest return flights from Cancun (CUN) to Buenos Aires (AEP) in August 2025 (see full year).

Return flights

20 Aug - 27 Aug	Avianca
21 Aug - 29 Aug	Avianca
14 Aug - 24 Aug	Avianca
21 Aug - 28 Aug	Avianca
13 Aug - 20 Aug	Avianca
25 Aug - 03 Sep	Avianca
21 Aug - 01 Sep	Avianca
12 Aug - 26 Aug	Avianca
15 Aug - 24 Aug	Avianca
17 Aug - 25 Aug	Avianca
15 Aug - 27 Aug	Avianca
23 Aug - 01 Sep	Avianca
25 Aug - 10 Sep	Avianca
26 Aug - 11 Sep	Avianca
22 Aug - 06 Sep	Avianca
14 Aug - 22 Aug	Avianca
08 Aug - 06 Sep	Sky Airline
15 Aug - 06 Sep	Sky Airline
20 Aug - 04 Sep	Copa
07 Aug - 08 Sep	Avianca

Also check the deals for one-way flights from Cancun to Buenos Aires 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 Cancun to Buenos Aires in August from 479€

Return flights