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

Return flights

04 Jul - 14 Jul	Lufthansa
02 Jul - 16 Jul	Lufthansa
08 Jul - 15 Jul	Lufthansa
04 Jul - 16 Jul	Lufthansa
01 Jul - 17 Jul	Hainan Airlines
06 Jul - 15 Jul	Lufthansa
01 Jul - 07 Jul	Etihad Airways
08 Jul - 13 Jul	LOT
05 Jul - 15 Jul	Ryanair
04 Jul - 18 Jul	Lufthansa
09 Jul - 13 Aug	Finnair
22 Jul - 05 Aug	LOT
12 Jul - 03 Aug	Hainan Airlines
18 Jul - 03 Aug	Hainan Airlines
15 Jul - 11 Aug	Hainan Airlines
14 Jul - 03 Aug	Hainan Airlines
24 Jul - 16 Aug	SWISS
07 Jul - 12 Aug	Finnair
24 Jul - 14 Aug	Finnair
24 Jul - 17 Aug	Finnair

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

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 July from $723

Return flights