AirHint found the following cheapest return flights from Rio De Janeiro (SDU) to Buenos Aires (AEP) in March 2026 (see full year).

Return flights

14 Mar - 31 Mar	LATAM Airlines Group
14 Mar - 14 Apr	LATAM Airlines Group
23 Mar - 30 Mar	LATAM Airlines Group
04 Mar - 11 Mar	LATAM Airlines Group
24 Mar - 29 Mar	LATAM Airlines Group
09 Mar - 18 Mar	LATAM Airlines Group
16 Mar - 23 Mar	LATAM Airlines Group
22 Mar - 12 Apr	LATAM Airlines Group
20 Mar - 23 Mar	LATAM Airlines Group
25 Mar - 29 Mar	Azul Airlines
10 Mar - 15 Mar	LATAM Airlines Group
02 Mar - 09 Mar	LATAM Airlines Group

Also check the deals for one-way flights from Rio De Janeiro 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 Rio De Janeiro to Buenos Aires in March from $309

Return flights