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

Return flights

26 May - 12 Jun	Scandinavian Airlines
11 May - 01 Jun	LOT
25 May - 08 Jun	LOT
25 May - 12 Jun	Finnair
21 May - 05 Jun	Finnair
01 May - 18 May	Scandinavian Airlines
06 May - 13 May	Finnair
01 May - 11 May	Finnair
01 May - 08 May	Scandinavian Airlines
21 May - 08 Jun	Scandinavian Airlines
22 May - 29 May	Finnair
01 May - 15 May	Finnair
04 May - 07 May	Turkish Airlines
21 May - 01 Jun	Brussels Airlines
19 May - 19 Jun	Wizz Air
01 May - 10 May	Ryanair
15 May - 22 May	Ryanair
07 May - 17 May	Emirates
11 May - 13 Jun	Air Canada

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

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 May from $689

Return flights