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

Return flights

16 Jul - 13 Aug	Avianca
15 Jul - 09 Aug	Sky Airline
16 Jul - 01 Aug	Sky Airline
14 Jul - 31 Jul	Sky Airline
27 Jul - 04 Aug	Sky Airline
23 Jul - 07 Aug	Avianca
15 Jul - 22 Jul	GOL Linhas Aéreas
20 Jul - 27 Jul	Sky Airline
17 Jul - 16 Aug	Arajet
21 Jul - 30 Jul	Sky Airline
20 Jul - 28 Jul	Sky Airline
27 Jul - 09 Aug	Arajet
16 Jul - 30 Jul	Avianca
17 Jul - 31 Jul	Avianca
16 Jul - 23 Jul	LATAM Airlines Group
17 Jul - 27 Jul	Sky Airline
28 Jul - 11 Aug	Copa
26 Jul - 10 Aug	Sky Airline
21 Jul - 27 Jul	Sky Airline
25 Jul - 06 Aug	Avianca

Also check the deals for one-way flights from Cancun to Buenos Aires in July.

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 July from 599€

Return flights