AirHint found the following cheapest one-way flights from Kuala Lumpur (KUL) to Seoul (ICN) in September 2025 (see full year).

One-Way flights

22 Sep	AirAsia X	direct
28 Sep	AirAsia X	direct
26 Sep	AirAsia X	direct
29 Sep	AirAsia X	direct
23 Sep	AirAsia X	direct
30 Sep	AirAsia X	direct
17 Sep	AirAsia X	direct
21 Sep	Malaysia Airlines
27 Sep	AirAsia X	direct
20 Sep	AirAsia X	direct

Also check the deals for return flights from Kuala Lumpur 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 one-way flights from Kuala Lumpur to Seoul in September from 69€

One-Way flights