AirHint found the following cheapest return flights from Brussels (BRU) to Seoul (ICN) in October 2025 (see full year).

Return flights

26 Oct - 13 Nov	Lufthansa
21 Oct - 05 Nov	Etihad Airways
30 Oct - 13 Nov	Lufthansa
01 Oct - 14 Oct	KLM
27 Oct - 09 Nov	Finnair
28 Oct - 09 Nov	Finnair
24 Oct - 21 Nov	Scandinavian Airlines
05 Oct - 12 Oct	LOT
26 Oct - 09 Nov	LOT
19 Oct - 27 Oct	Lufthansa
01 Oct - 17 Oct	Lufthansa
19 Oct - 28 Oct	Lufthansa
20 Oct - 30 Oct	Ryanair
06 Oct - 10 Oct	LOT
16 Oct - 23 Oct	Lufthansa
18 Oct - 28 Oct	SWISS
23 Oct - 26 Oct	Finnair
22 Oct - 04 Nov	KLM
30 Oct - 21 Nov	Lufthansa
23 Oct - 03 Nov	Finnair

Also check the deals for one-way flights from Brussels to Seoul in October.

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 Brussels to Seoul in October from $645

Return flights