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

Return flights

12 Dec - 18 Dec	United
13 Dec - 17 Dec	Delta
14 Dec - 23 Dec	Delta
17 Dec - 23 Dec	United
16 Dec - 20 Dec	United
27 Dec - 28 Jan	American Airlines
31 Dec - 28 Jan	Avianca
16 Dec - 23 Dec	American Airlines
15 Dec - 17 Dec	American Airlines
16 Dec - 19 Dec	American Airlines
26 Dec - 22 Jan	American Airlines
22 Dec - 24 Dec	American Airlines
28 Dec - 30 Dec	Avianca
27 Dec - 16 Jan	Avianca
18 Dec - 11 Jan	Spirit Airlines
29 Dec - 13 Jan	Avianca
23 Dec - 01 Jan	Frontier Airlines
22 Dec - 01 Jan	Frontier Airlines
12 Dec - 16 Jan	Delta
26 Dec - 13 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 $622

Return flights