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

Return flights

27 Sep - 10 Oct	Malaysia Airlines
26 Sep - 08 Oct	AirAsia
26 Sep - 15 Oct	AirAsia
26 Sep - 13 Oct	AirAsia
26 Sep - 16 Oct	AirAsia
26 Sep - 14 Oct	AirAsia
26 Sep - 09 Oct	AirAsia
26 Sep - 10 Oct	AirAsia
24 Sep - 08 Oct	AirAsia
24 Sep - 13 Oct	AirAsia
05 Sep - 08 Sep	AirAsia
05 Sep - 23 Sep	AirAsia
05 Sep - 07 Sep	AirAsia
05 Sep - 06 Sep	AirAsia
05 Sep - 11 Sep	AirAsia
07 Sep - 08 Sep	AirAsia
07 Sep - 23 Sep	AirAsia
20 Sep - 23 Sep	AirAsia
19 Sep - 23 Sep	AirAsia
16 Sep - 23 Sep	AirAsia

Also check the deals for one-way flights from Penang to Seoul in September.

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 September from 208€

Return flights