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

Return flights

02 Dec - 10 Dec	Jeju Air	direct
09 Dec - 11 Dec	Jeju Air	direct
09 Dec - 16 Dec	Jeju Air	direct
04 Dec - 07 Dec	Jeju Air	direct
02 Dec - 09 Dec	Jeju Air	direct
02 Dec - 05 Dec	Jeju Air	direct
25 Dec - 28 Dec	Jeju Air	direct
04 Dec - 06 Dec	Jeju Air	direct
13 Dec - 15 Dec	Jeju Air	direct
01 Dec - 05 Dec	Jeju Air	direct
26 Dec - 02 Jan	Jeju Air	direct
30 Dec - 04 Jan	Jeju Air	direct
30 Dec - 03 Jan	Jeju Air	direct
30 Dec - 02 Jan	Jeju Air	direct
28 Dec - 02 Jan	Jeju Air	direct

Also check the deals for one-way flights from Hiroshima 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 Hiroshima to Seoul in December from 136€

Return flights