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

Return flights

02 Dec - 08 Dec	Sky Airline
01 Dec - 12 Dec	Sky Airline
03 Dec - 08 Dec	Sky Airline
05 Dec - 10 Dec	Sky Airline
01 Dec - 06 Dec	Sky Airline
01 Dec - 07 Dec	Sky Airline
03 Dec - 15 Dec	Sky Airline
01 Dec - 08 Dec	Avianca
12 Dec - 14 Dec	LATAM Airlines Group
09 Dec - 16 Dec	Sky Airline
27 Dec - 28 Jan	Avianca
26 Dec - 12 Jan	Sky Airline
11 Dec - 12 Jan	Sky Airline
12 Dec - 12 Jan	Sky Airline
27 Dec - 28 Jan	American Airlines	direct
26 Dec - 10 Jan	Sky Airline
15 Dec - 09 Jan	Sky Airline
26 Dec - 11 Jan	Sky Airline
12 Dec - 10 Jan	Arajet
15 Dec - 12 Jan	Sky Airline

Also check the deals for one-way flights from Miami 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 Miami to Buenos Aires in December from $624

Return flights