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

One-Way flights

01 Dec	Avianca
30 Dec	Arajet
29 Dec	Arajet
15 Dec	Arajet
25 Dec	Avianca
10 Dec	LATAM Airlines Group
24 Dec	LATAM Airlines Group
31 Dec	Avianca
13 Dec	LATAM Airlines Group
10 Dec	Aerolineas Argentinas	direct

Also check the deals for return 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 one-way flights from Cancun to Buenos Aires in December from $276

One-Way flights