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

Return flights

03 Oct - 24 Oct	Delta
25 Oct - 07 Nov	Delta
07 Oct - 21 Oct	SWISS
28 Oct - 10 Nov	SWISS
30 Oct - 22 Nov	Delta
27 Oct - 10 Nov	Air Europa
29 Oct - 14 Nov	TAP
31 Oct - 22 Nov	SWISS
30 Oct - 21 Nov	Air Europa
31 Oct - 29 Nov	SWISS
09 Oct - 26 Oct	LATAM Airlines Group
10 Oct - 24 Oct	SWISS
01 Oct - 30 Nov	British Airways
09 Oct - 16 Oct	Air Europa
01 Oct - 31 Oct	Lufthansa
03 Oct - 17 Oct	Delta
25 Oct - 10 Nov	Lufthansa

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

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 October from $1064

Return flights