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

Return flights

25 Aug - 10 Sep	LOT
25 Aug - 05 Sep	Ryanair
28 Aug - 12 Sep	Luxair
09 Aug - 12 Aug	Ryanair
08 Aug - 21 Aug	Ryanair
05 Aug - 15 Aug	British Airways
09 Aug - 16 Aug	Ryanair
08 Aug - 22 Aug	Lufthansa
02 Aug - 09 Aug	Ryanair
12 Aug - 02 Sep	Lufthansa
02 Aug - 10 Aug	Ryanair
16 Aug - 26 Aug	Lufthansa
16 Aug - 23 Aug	Lufthansa
09 Aug - 30 Sep	Lufthansa
01 Aug - 15 Aug	Lufthansa

Also check the deals for one-way flights from Luxemburg 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 Luxemburg to Seoul in August from 693€

Return flights