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

Return flights

04 Dec - 07 Dec	AirAsia
11 Dec - 16 Dec	AirAsia
02 Dec - 07 Dec	AirAsia
10 Dec - 15 Dec	AirAsia
06 Dec - 09 Dec	AirAsia
03 Dec - 09 Dec	HK Express
16 Dec - 13 Jan	HK Express
29 Dec - 05 Jan	Batik Air Malaysia
16 Dec - 12 Jan	HK Express
16 Dec - 11 Jan	HK Express
10 Dec - 24 Dec	AirAsia
17 Dec - 21 Dec	HK Express
08 Dec - 13 Dec	HK Express
12 Dec - 16 Dec	HK Express
18 Dec - 08 Jan	HK Express
18 Dec - 11 Jan	HK Express
04 Dec - 29 Jan	China Southern
30 Dec - 06 Jan	HK Express
15 Dec - 02 Jan	HK Express
16 Dec - 04 Jan	HK Express

Also check the deals for one-way flights from Penang 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 Penang to Seoul in December from $335

Return flights