AirHint found the following cheapest return flights from Jakarta (CGK) to Seoul (ICN) in August 2026 (see full year).

Return flights

14 Aug - 23 Aug	Philippine Airlines
14 Aug - 25 Aug	Royal Brunei
14 Aug - 18 Aug	Royal Brunei
05 Aug - 11 Aug	Scoot
21 Aug - 25 Aug	Scoot
20 Aug - 28 Aug	Indonesia AirAsia
15 Aug - 22 Aug	Singapore Airlines
21 Aug - 23 Aug	Vietnam Airlines
20 Aug - 28 Aug	Korean Air	direct
21 Aug - 23 Aug	Korean Air	direct

Also check the deals for one-way flights from Jakarta to Seoul in August.

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 Jakarta to Seoul in August from 242€

Return flights