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

Return flights

20 Oct - 27 Nov	Lufthansa
17 Oct - 25 Oct	Lufthansa
04 Oct - 25 Oct	Lufthansa
27 Oct - 04 Nov	Finnair
28 Oct - 04 Nov	Finnair
27 Oct - 03 Nov	Finnair
31 Oct - 14 Nov	Lufthansa
21 Oct - 30 Oct	Finnair
21 Oct - 06 Nov	Finnair
24 Oct - 07 Nov	Finnair
24 Oct - 31 Oct	Lufthansa
17 Oct - 31 Oct	Lufthansa
20 Oct - 31 Oct	Lufthansa
24 Oct - 08 Nov	Lufthansa
23 Oct - 08 Nov	Lufthansa
18 Oct - 25 Oct	Lufthansa
03 Oct - 10 Oct	Finnair
03 Oct - 17 Oct	SWISS
03 Oct - 25 Oct	SWISS
24 Oct - 02 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 $626

Return flights