Cheapest return flights from Austin to Buenos Aires in December from $707

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

Return flights

28 Dec - 17 Jan LATAM Airlines Group
13 Dec - 03 Jan LATAM Airlines Group
14 Dec - 03 Jan LATAM Airlines Group
12 Dec - 03 Jan LATAM Airlines Group
18 Dec - 03 Jan Frontier Airlines
20 Dec - 03 Jan Spirit Airlines
19 Dec - 03 Jan Spirit Airlines
20 Dec - 02 Jan LATAM Airlines Group
20 Dec - 04 Jan Spirit Airlines
19 Dec - 02 Jan LATAM Airlines Group

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

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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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