AirHint found the following cheapest return flights from Austin (AUS) to Buenos Aires (EZE) in March 2026 (see full year).

Return flights

19 Mar - 01 Apr	Copa
31 Mar - 09 Apr	Frontier Airlines
06 Mar - 10 Mar	United
06 Mar - 16 Mar	United
23 Mar - 30 Mar	LATAM Airlines Group
08 Mar - 13 Mar	Delta
20 Mar - 31 Mar	Copa
21 Mar - 28 Mar	United
20 Mar - 28 Mar	United
20 Mar - 05 Apr	United
20 Mar - 30 Mar	Copa
21 Mar - 31 Mar	Copa
22 Mar - 30 Mar	Copa

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

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 Austin to Buenos Aires in March from 533€

Return flights