AirHint found the following cheapest return flights from Seoul (ICN) to Batam (BTH) in October 2025 (see full year).

Return flights

18 Oct - 29 Oct	Jeju Air	direct
08 Oct - 29 Oct	Jeju Air	direct
11 Oct - 12 Nov	Jeju Air	direct
15 Oct - 22 Oct	Jeju Air	direct
11 Oct - 15 Oct	Jeju Air	direct
18 Oct - 25 Oct	Jeju Air	direct
08 Oct - 15 Oct	Jeju Air	direct
11 Oct - 18 Oct	Jeju Air	direct
22 Oct - 29 Oct	Jeju Air	direct
15 Oct - 18 Oct	Jeju Air	direct
22 Oct - 25 Oct	Jeju Air	direct
24 Oct - 01 Nov	AirAsia X
25 Oct - 01 Nov	Jeju Air	direct

Also check the deals for one-way flights from Seoul to Batam in October.

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 Seoul to Batam in October from 258€

Return flights