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

Return flights

29 Sep - 08 Oct	Eurowings	direct
15 Sep - 18 Sep	Eurowings	direct
15 Sep - 21 Sep	Eurowings	direct
04 Sep - 08 Sep	Eurowings	direct
11 Sep - 15 Sep	Eurowings	direct
25 Sep - 29 Sep	Eurowings	direct
26 Sep - 28 Sep	Eurowings	direct
16 Sep - 22 Sep	Austrian Airlines
18 Sep - 22 Sep	Austrian Airlines
17 Sep - 22 Sep	Eurowings	direct
18 Sep - 22 Sep	Eurowings	direct

Also check the deals for one-way flights from Graz 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 Graz to Berlin in September from $113

Return flights