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

Return flights

06 Oct - 13 Oct	AirAsia
06 Oct - 10 Oct	AirAsia
06 Oct - 11 Oct	AirAsia
02 Oct - 13 Oct	AirAsia
02 Oct - 10 Oct	AirAsia
02 Oct - 11 Oct	AirAsia
24 Oct - 29 Oct	Scoot Tigerair
06 Oct - 26 Oct	AirAsia
01 Oct - 22 Oct	Scoot Tigerair
21 Oct - 22 Oct	Scoot Tigerair
26 Oct - 01 Nov	Scoot Tigerair
24 Oct - 03 Nov	AirAsia
24 Oct - 06 Nov	AirAsia
26 Oct - 03 Nov	AirAsia
26 Oct - 06 Nov	AirAsia
27 Oct - 06 Nov	AirAsia
24 Oct - 01 Nov	AirAsia
24 Oct - 02 Nov	AirAsia
26 Oct - 02 Nov	AirAsia
27 Oct - 01 Nov	AirAsia

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

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 October from $241

Return flights