AirHint found the following cheapest return flights from Kagoshima (KOJ) to Seoul (ICN) in December 2025 (see full year).

Return flights

09 Dec - 12 Dec	Jeju Air	direct
04 Dec - 07 Dec	Jeju Air	direct
11 Dec - 13 Dec	Jeju Air	direct
26 Dec - 29 Dec	Jeju Air	direct
26 Dec - 28 Dec	Jeju Air	direct
31 Dec - 02 Jan	Jeju Air	direct
26 Dec - 31 Dec	Jeju Air	direct
26 Dec - 04 Jan	Jeju Air	direct
31 Dec - 04 Jan	Jeju Air	direct
31 Dec - 03 Jan	Jeju Air	direct
27 Dec - 30 Dec	Jeju Air	direct
14 Dec - 15 Dec	Jeju Air	direct
07 Dec - 14 Dec	Jeju Air	direct
27 Dec - 03 Jan	Jeju Air	direct
30 Dec - 03 Jan	Jeju Air	direct
30 Dec - 01 Jan	Jeju Air	direct

Also check the deals for one-way flights from Kagoshima to Seoul in December.

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 Kagoshima to Seoul in December from 170€

Return flights