Cheapest return flights from Austin to Buenos Aires in December from $576

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

Return flights

11 Dec - 24 Dec United
16 Dec - 23 Dec American Airlines
28 Dec - 17 Jan United
18 Dec - 27 Dec LATAM Airlines Group
18 Dec - 11 Jan Frontier Airlines
16 Dec - 04 Jan LATAM Airlines Group
28 Dec - 04 Jan LATAM Airlines Group
12 Dec - 03 Jan LATAM Airlines Group
20 Dec - 05 Jan Spirit Airlines
14 Dec - 03 Jan Spirit Airlines
13 Dec - 03 Jan Spirit Airlines
19 Dec - 03 Jan Spirit Airlines

Also check the deals for one-way flights from Austin to Buenos Aires in December.

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