AirHint found the following cheapest return flights from Billund (BLL) to Seoul (ICN) in August 2025 (see full year).

Return flights

21 Aug - 27 Aug	Turkish Airlines
17 Aug - 23 Aug	Etihad Airways
17 Aug - 22 Aug	Etihad Airways
22 Aug - 29 Aug	Etihad Airways
16 Aug - 22 Aug	Scandinavian Airlines
16 Aug - 23 Aug	Scandinavian Airlines
11 Aug - 24 Aug	KLM

Also check the deals for one-way flights from Billund to Seoul in August.

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 Billund to Seoul in August from 734€

Return flights