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

Return flights

08 Sep - 05 Oct	Turkish Airlines
17 Sep - 30 Sep	British Airways
05 Sep - 26 Sep	British Airways
23 Sep - 23 Oct	Transavia France
12 Sep - 19 Sep	Ryanair
19 Sep - 16 Oct	easyJet
16 Sep - 10 Oct	LATAM Airlines Group
12 Sep - 20 Sep	easyJet
19 Sep - 17 Oct	easyJet
16 Sep - 20 Sep	Ryanair
08 Sep - 23 Sep	Ryanair
10 Sep - 20 Sep	Ryanair
26 Sep - 08 Oct	easyJet
08 Sep - 17 Sep	Ryanair
02 Sep - 24 Sep	Iberia Express
19 Sep - 04 Oct	Ryanair
23 Sep - 17 Oct	Transavia France
04 Sep - 24 Sep	Air France
19 Sep - 15 Oct	easyJet
28 Sep - 17 Oct	Air France

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 955€

Return flights