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

Return flights

19 Apr - 06 May	Scandinavian Airlines
17 Apr - 04 May	Scandinavian Airlines
24 Apr - 15 May	Scandinavian Airlines
13 Apr - 29 Apr	Finnair
28 Apr - 10 May	Finnair
09 Apr - 21 Apr	Etihad Airways
20 Apr - 05 May	Finnair
16 Apr - 05 May	Finnair
16 Apr - 30 Apr	Finnair
09 Apr - 19 Apr	Finnair
01 Apr - 30 Apr	Finnair
13 Apr - 26 Apr	Finnair
17 Apr - 03 May	Finnair
11 Apr - 09 May	Finnair
27 Apr - 08 May	Finnair
14 Apr - 24 Apr	Etihad Airways
10 Apr - 25 Apr	Turkish Airlines
11 Apr - 25 Apr	Turkish Airlines
18 Apr - 25 Apr	Turkish Airlines
25 Apr - 08 May	Finnair

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 $664

Return flights