AirHint found the following cheapest return flights from Kuala Lumpur (KUL) to Seoul (ICN) in December 2025 (see full year).

Return flights

02 Dec - 09 Dec	VietJet Air
05 Dec - 07 Dec	VietJet Air
05 Dec - 11 Dec	VietJet Air
15 Dec - 21 Dec	AirAsia
03 Dec - 07 Dec	VietJet Air
09 Dec - 14 Dec	VietJet Air
09 Dec - 16 Dec	VietJet Air
10 Dec - 16 Dec	VietJet Air
05 Dec - 10 Dec	VietJet Air
05 Dec - 14 Dec	VietJet Air
31 Dec - 04 Jan	AirAsia
14 Dec - 10 Jan	VietJet Air
01 Dec - 06 Jan	VietJet Air
26 Dec - 01 Jan	China Eastern
25 Dec - 01 Jan	China Eastern
01 Dec - 07 Jan	VietJet Air
03 Dec - 07 Jan	VietJet Air
19 Dec - 02 Jan	VietJet Air
11 Dec - 02 Jan	VietJet Air
24 Dec - 01 Jan	Philippines AirAsia Inc.

Also check the deals for one-way flights from Kuala Lumpur to Seoul in December.

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 Kuala Lumpur to Seoul in December from 196€

Return flights