Cheapest one-way flights from Rio De Janeiro to Buenos Aires in September from $138

AirHint found the following cheapest one-way flights from Rio De Janeiro (SDU) to Buenos Aires (AEP) in September 2026 (see full year).

One-Way flights

19 Sep LATAM Airlines Group
21 Sep LATAM Airlines Group
15 Sep LATAM Airlines Group
25 Sep LATAM Airlines Group
01 Sep LATAM Airlines Group
14 Sep LATAM Airlines Group
30 Sep LATAM Airlines Group
24 Sep LATAM Airlines Group
11 Sep LATAM Airlines Group
08 Sep LATAM Airlines Group

Also check the deals for return flights from Rio De Janeiro to Buenos Aires in September.

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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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