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

Return flights

22 Sep - 29 Sep	Air Serbia
15 Sep - 21 Sep	Air Serbia
23 Sep - 29 Sep	Air Serbia
27 Sep - 30 Sep	Air Serbia
22 Sep - 30 Sep	Air Serbia
26 Sep - 01 Oct	Air Serbia
27 Sep - 01 Oct	Air Serbia
25 Sep - 28 Sep	Pegasus Airlines
01 Sep - 30 Sep	Austrian Airlines
19 Sep - 23 Sep	Air Serbia
03 Sep - 09 Sep	Ryanair
24 Sep - 29 Sep	easyJet
20 Sep - 07 Oct	Ryanair	direct
23 Sep - 07 Oct	Ryanair	direct
30 Sep - 07 Oct	Ryanair	direct
28 Sep - 05 Oct	Wizz Air Malta
16 Sep - 07 Oct	Ryanair	direct
27 Sep - 07 Oct	Ryanair	direct
23 Sep - 14 Oct	Ryanair	direct
30 Sep - 14 Oct	Ryanair	direct

Also check the deals for one-way flights from Athens to Berlin 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 Athens to Berlin in September from $148

Return flights