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

Return flights

27 Sep - 11 Oct	Wizz Air Malta
30 Sep - 03 Oct	Wizz Air Malta
27 Sep - 29 Sep	Wizz Air Malta
17 Sep - 22 Sep	Wizz Air Malta
14 Sep - 24 Sep	Ryanair
26 Sep - 01 Oct	Ryanair
28 Sep - 19 Oct	Wizz Air Malta
27 Sep - 31 Oct	Wizz Air Malta
18 Sep - 30 Sep	Ryanair
22 Sep - 08 Oct	Wizz Air Malta
25 Sep - 02 Oct	Wizz Air Malta
14 Sep - 25 Sep	Ryanair
26 Sep - 30 Sep	Ryanair
08 Sep - 10 Sep	Wizz Air Malta
18 Sep - 05 Oct	Ryanair
01 Sep - 06 Oct	Wizz Air Malta
21 Sep - 28 Sep	Wizz Air Malta
11 Sep - 21 Sep	Ryanair
01 Sep - 14 Sep	Wizz Air Malta
01 Sep - 05 Oct	Wizz Air Malta

Also check the deals for one-way flights from Frankfurt 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 Frankfurt to Belgrade in September from 93€

Return flights