AirHint found the following cheapest return flights from Brussels (BRU) to Seoul (ICN) in April 2026 (see full year).

Return flights

07 Apr - 22 Apr	Finnair
09 Apr - 22 Apr	Etihad Airways
09 Apr - 16 Apr	Finnair
18 Apr - 01 May	Turkish Airlines
24 Apr - 15 May	Finnair
13 Apr - 26 Apr	Finnair
10 Apr - 18 Apr	Finnair
03 Apr - 17 Apr	Finnair
02 Apr - 12 Apr	Turkish Airlines
03 Apr - 24 Apr	Finnair
05 Apr - 18 Apr	SWISS

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

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 April from $739

Return flights