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

Return flights

05 Sep - 23 Sep	Turkish Airlines
08 Sep - 23 Sep	Turkish Airlines
07 Sep - 23 Sep	Turkish Airlines
15 Sep - 28 Sep	Turkish Airlines
05 Sep - 27 Sep	Turkish Airlines
11 Sep - 26 Sep	British Airways
17 Sep - 05 Oct	Condor
01 Sep - 22 Sep	Turkish Airlines
18 Sep - 23 Sep	Iberia Express
13 Sep - 24 Sep	Iberia Express
17 Sep - 30 Sep	Iberia Express
09 Sep - 22 Oct	SWISS
28 Sep - 08 Oct	Vueling Airlines
19 Sep - 14 Oct	Vueling Airlines
23 Sep - 17 Oct	Vueling Airlines
23 Sep - 04 Oct	SWISS
30 Sep - 09 Oct	British Airways

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 826€

Return flights