AirHint found the following cheapest return flights from Berlin (BER) to Buenos Aires (EZE) in September 2025 (see full year).

Return flights

03 Sep - 13 Oct	British Airways
03 Sep - 19 Oct	British Airways
01 Sep - 28 Sep	KLM
05 Sep - 27 Sep	Air France
02 Sep - 25 Sep	British Airways
03 Sep - 21 Sep	Lufthansa
16 Sep - 28 Sep	SWISS
23 Sep - 17 Oct	SWISS
25 Sep - 09 Oct	British Airways
10 Sep - 17 Sep	Norse Atlantic Airways
01 Sep - 15 Sep	Lufthansa
17 Sep - 30 Sep	KLM
24 Sep - 10 Oct	British Airways
21 Sep - 03 Oct	Lufthansa
17 Sep - 02 Oct	KLM
08 Sep - 10 Sep	KLM
04 Sep - 11 Sep	Lufthansa
27 Sep - 18 Oct	Lufthansa

Also check the deals for one-way flights from Berlin to Buenos Aires in September.

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 Berlin to Buenos Aires in September from $1089

Return flights