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

Return flights

01 Dec - 09 Dec	Delta
02 Dec - 21 Dec	Delta
10 Dec - 17 Dec	Delta
05 Dec - 10 Dec	American Airlines
11 Dec - 21 Jan	Delta
02 Dec - 17 Dec	Avianca
01 Dec - 26 Dec	Delta
27 Dec - 28 Jan	Avianca
05 Dec - 13 Dec	Avianca
10 Dec - 24 Dec	Avianca
16 Dec - 13 Jan	Avianca
15 Dec - 14 Jan	Avianca
14 Dec - 13 Jan	Avianca
15 Dec - 13 Jan	Avianca
24 Dec - 31 Dec	Avianca
24 Dec - 12 Jan	Copa
26 Dec - 09 Jan	Spirit Airlines
14 Dec - 23 Dec	Delta
25 Dec - 24 Jan	Avianca
15 Dec - 12 Jan	Avianca

Also check the deals for one-way flights from Fort Lauderdale 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 Fort Lauderdale to Buenos Aires in December from $763

Return flights