AirHint found the following cheapest return flights from Hannover (HAJ) to Belgrade (BEG) in September 2025 (see full year).

Return flights

12 Sep - 30 Sep	Lufthansa
07 Sep - 28 Sep	Lufthansa
15 Sep - 03 Oct	Lufthansa
19 Sep - 22 Sep	SWISS
15 Sep - 03 Oct	Air Serbia	direct
01 Sep - 05 Sep	Lufthansa
05 Sep - 08 Sep	Lufthansa
03 Sep - 08 Sep	Lufthansa
04 Sep - 08 Sep	Lufthansa
01 Sep - 05 Sep	Air Serbia	direct
26 Sep - 06 Oct	Lufthansa
26 Sep - 06 Oct	Air Serbia	direct
19 Sep - 22 Sep	Air Serbia	direct
01 Sep - 03 Sep	Air Serbia

Also check the deals for one-way flights from Hannover to Belgrade 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 Hannover to Belgrade in September from $223

Return flights