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

Return flights

12 Sep - 29 Sep	Turkish Airlines
23 Sep - 14 Oct	Turkish Airlines
27 Sep - 12 Oct	Turkish Airlines
13 Sep - 27 Sep	TAP
01 Sep - 10 Sep	Turkish Airlines
01 Sep - 08 Sep	TAP
21 Sep - 14 Oct	Vueling Airlines
19 Sep - 03 Oct	LATAM Airlines Group
09 Sep - 16 Sep	British Airways
01 Sep - 11 Sep	British Airways
01 Sep - 19 Sep	LATAM Airlines Group
14 Sep - 21 Sep	LATAM Airlines Group
29 Sep - 07 Oct	British Airways
17 Sep - 05 Oct	Iberia
08 Sep - 05 Oct	Vueling Airlines
06 Sep - 13 Sep	LATAM Airlines Group

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 781€

Return flights