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

Return flights

02 Oct - 20 Oct	Lufthansa
01 Oct - 22 Oct	Lufthansa
01 Oct - 17 Oct	Lufthansa
24 Oct - 10 Nov	Scandinavian Airlines
02 Oct - 16 Oct	Lufthansa
01 Oct - 16 Oct	Lufthansa
19 Oct - 25 Oct	Aer Lingus
26 Oct - 10 Nov	Scandinavian Airlines
28 Oct - 13 Nov	Finnair
18 Oct - 25 Oct	Ryanair
14 Oct - 13 Nov	Lufthansa
06 Oct - 17 Oct	Lufthansa
31 Oct - 09 Nov	Finnair
28 Oct - 15 Nov	Finnair
29 Oct - 15 Nov	Finnair
24 Oct - 11 Nov	Finnair
24 Oct - 06 Nov	Finnair
21 Oct - 23 Oct	Thai Airways
24 Oct - 31 Oct	Finnair
30 Oct - 15 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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from Brussels to Seoul in October from 549€

Return flights