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

Return flights

03 Dec - 10 Dec	Avianca
01 Dec - 11 Dec	Avianca
01 Dec - 09 Dec	Avianca
04 Dec - 15 Dec	Copa
03 Dec - 13 Dec	Avianca
10 Dec - 22 Dec	Avianca
12 Dec - 25 Dec	Avianca
02 Dec - 26 Dec	Avianca
19 Dec - 30 Dec	Avianca
16 Dec - 30 Dec	Avianca
18 Dec - 31 Jan	Avianca
23 Dec - 01 Jan	Avianca
14 Dec - 01 Jan	Avianca
19 Dec - 03 Jan	Avianca
16 Dec - 06 Jan	Avianca
06 Dec - 03 Jan	Avianca
13 Dec - 03 Jan	Avianca
20 Dec - 03 Jan	Avianca
21 Dec - 06 Jan	Avianca
28 Dec - 01 Jan	Avianca

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

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Cheapest return flights from Cancun to Buenos Aires in December from 473€

Return flights