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

Return flights

16 Sep - 22 Sep	Scoot
30 Sep - 11 Oct	Scoot
16 Sep - 10 Oct	HK Express
24 Sep - 14 Oct	HK Express
17 Sep - 23 Sep	HK Express
16 Sep - 20 Sep	Scoot
09 Sep - 10 Sep	HK Express
09 Sep - 24 Sep	HK Express
18 Sep - 22 Sep	HK Express
16 Sep - 23 Sep	Scoot
17 Sep - 22 Sep	Scoot
20 Sep - 23 Sep	HK Express
09 Sep - 11 Sep	HK Express
27 Sep - 09 Oct	HK Express
30 Sep - 10 Oct	HK Express
25 Sep - 19 Oct	HK Express
08 Sep - 15 Oct	HK Express
08 Sep - 20 Oct	HK Express
24 Sep - 08 Oct	HK Express
09 Sep - 08 Oct	HK Express

Also check the deals for one-way 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 return flights from Kuala Lumpur to Seoul in September from $284

Return flights