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

One-Way flights

28 Sep	Scoot
30 Sep	Indonesia AirAsia
23 Sep	AirAsia
25 Sep	AirAsia
20 Sep	Super Air Jet
24 Sep	Garuda Indonesia	direct
29 Sep	Garuda Indonesia	direct
30 Sep	Asiana Airlines	direct
28 Sep	Asiana Airlines	direct
26 Sep	Garuda Indonesia	direct

Also check the deals for return flights from Jakarta 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 Jakarta to Seoul in September from $119

One-Way flights