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

Return flights

27 Sep - 04 Oct	Eurowings	direct
17 Sep - 08 Oct	Eurowings	direct
17 Sep - 29 Sep	Eurowings
17 Sep - 27 Sep	Eurowings
10 Sep - 24 Sep	Eurowings
17 Sep - 25 Sep	Eurowings
17 Sep - 22 Sep	Eurowings
24 Sep - 28 Sep	Ryanair
10 Sep - 17 Sep	Eurowings
10 Sep - 15 Sep	Eurowings
13 Sep - 24 Sep	Eurowings
27 Sep - 01 Oct	Eurowings	direct
03 Sep - 08 Sep	Air Serbia	direct
28 Sep - 03 Oct	Air Serbia	direct
26 Sep - 01 Oct	Air Serbia
29 Sep - 06 Oct	Air Serbia	direct
27 Sep - 02 Oct	Eurowings	direct
30 Sep - 02 Oct	easyJet
29 Sep - 02 Oct	easyJet
26 Sep - 01 Oct	Air Serbia	direct

Also check the deals for one-way flights from Duesseldorf 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 Duesseldorf to Belgrade in September from $118

Return flights