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

Return flights

22 Sep - 24 Sep	Wizz Air Malta
10 Sep - 11 Sep	Wizz Air Malta
09 Sep - 11 Sep	Wizz Air Malta
12 Sep - 17 Sep	Lufthansa
18 Sep - 22 Sep	Lufthansa
16 Sep - 20 Sep	Lufthansa
13 Sep - 16 Sep	Lufthansa
11 Sep - 16 Sep	Lufthansa
18 Sep - 21 Sep	Lufthansa
17 Sep - 21 Sep	Lufthansa
27 Sep - 07 Oct	Lufthansa
28 Sep - 04 Oct	Lufthansa
27 Sep - 04 Oct	Lufthansa
26 Sep - 10 Oct	Lufthansa
27 Sep - 10 Oct	Lufthansa
27 Sep - 11 Oct	Lufthansa

Also check the deals for one-way flights from Basel 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 Basel to Belgrade in September from $218

Return flights