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

Return flights

10 Sep - 11 Sep	Jeju Air	direct
23 Sep - 25 Sep	Jeju Air	direct
07 Sep - 10 Sep	Jeju Air	direct
10 Sep - 16 Sep	Jeju Air	direct
11 Sep - 16 Sep	Jeju Air	direct
17 Sep - 20 Sep	Jeju Air	direct
11 Sep - 13 Sep	Jeju Air	direct
10 Sep - 13 Sep	Jeju Air	direct
07 Sep - 11 Sep	Jeju Air	direct
11 Sep - 17 Sep	Jeju Air	direct
24 Sep - 01 Oct	Jeju Air	direct
10 Sep - 01 Oct	Jeju Air	direct
20 Sep - 29 Oct	Jeju Air	direct
30 Sep - 02 Oct	Jeju Air	direct
29 Sep - 06 Oct	Jeju Air	direct

Also check the deals for one-way flights from Hiroshima 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 Hiroshima to Seoul in September from 90€

Return flights