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

Return flights

18 Oct - 21 Oct	Scandinavian Airlines
21 Oct - 27 Oct	KLM
20 Oct - 27 Oct	LOT
16 Oct - 24 Oct	KLM
29 Oct - 12 Nov	Air France
18 Oct - 20 Oct	LOT
13 Oct - 19 Oct	Scandinavian Airlines
28 Oct - 31 Oct	LOT
30 Oct - 06 Nov	Finnair
31 Oct - 07 Nov	Qatar Airways
14 Oct - 19 Oct	Emirates
13 Oct - 17 Oct	LOT
14 Oct - 17 Oct	LOT

Also check the deals for one-way flights from Seoul to Tallinn 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 Tallinn in October from $746

Return flights