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

Return flights

15 Sep - 21 Sep	Air Serbia
27 Sep - 18 Oct	LOT
29 Sep - 14 Oct	LOT
30 Sep - 19 Oct	LOT
28 Sep - 18 Oct	LOT
13 Sep - 20 Sep	Austrian Airlines
24 Sep - 11 Oct	LOT
25 Sep - 16 Oct	Air Serbia
06 Sep - 14 Sep	Air Serbia
14 Sep - 29 Sep	Wizz Air
28 Sep - 03 Oct	Wizz Air
09 Sep - 15 Sep	Lufthansa

Also check the deals for one-way flights from Belgrade to Seoul 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 Belgrade to Seoul in September from $589

Return flights