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

Return flights

11 Jul - 18 Jul	Asiana Airlines
09 Jul - 19 Jul	Etihad Airways
14 Jul - 20 Jul	Etihad Airways
24 Jul - 27 Jul	Etihad Airways
15 Jul - 22 Jul	Lufthansa
17 Jul - 23 Jul	Lufthansa
09 Jul - 16 Jul	Qatar Airways
17 Jul - 22 Jul	Lufthansa
15 Jul - 29 Jul	Etihad Airways
29 Jul - 24 Aug	Lufthansa
13 Jul - 20 Jul	Lufthansa
24 Jul - 24 Aug	Lufthansa
24 Jul - 10 Aug	Etihad Airways
30 Jul - 22 Aug	SWISS
22 Jul - 06 Aug	KLM
23 Jul - 10 Aug	Etihad Airways
25 Jul - 10 Aug	Etihad Airways
24 Jul - 01 Aug	Etihad Airways
24 Jul - 02 Aug	Etihad Airways
22 Jul - 01 Aug	Lufthansa

Also check the deals for one-way flights from Seoul to Brussels 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 Seoul to Brussels in July from $697

Return flights