AirHint found the following cheapest return flights from Brussels (BRU) to Buenos Aires (AEP) in August 2025 (see full year).

Return flights

14 Aug - 22 Aug	Brussels Airlines
18 Aug - 31 Aug	LATAM Airlines Group
09 Aug - 13 Sep	TAP
11 Aug - 21 Aug	LATAM Airlines Group
05 Aug - 08 Aug	LATAM Airlines Group
04 Aug - 08 Aug	LATAM Airlines Group
05 Aug - 12 Aug	SWISS
05 Aug - 12 Sep	LATAM Airlines Group
02 Aug - 28 Sep	SWISS
05 Aug - 13 Sep	TAP
01 Aug - 08 Aug	British Airways
04 Aug - 26 Aug	LATAM Airlines Group
03 Aug - 10 Sep	SWISS
01 Aug - 13 Sep	British Airways
01 Aug - 10 Sep	SWISS

Also check the deals for one-way flights from Brussels to Buenos Aires in August.

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 Brussels to Buenos Aires in August from $1756

Return flights