AirHint found the following cheapest return flights from Tallinn (TLL) to Seoul (ICN) in April 2026 (see full year).

Return flights

24 Apr - 01 May	Scandinavian Airlines
14 Apr - 21 Apr	Finnair
09 Apr - 16 Apr	Finnair
16 Apr - 23 Apr	Finnair
15 Apr - 22 Apr	Finnair
22 Apr - 29 Apr	Finnair
25 Apr - 02 May	Turkish Airlines
26 Apr - 03 May	Finnair
10 Apr - 17 Apr	Finnair
23 Apr - 30 Apr	Finnair

Also check the deals for one-way flights from Tallinn to Seoul in April.

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 Tallinn to Seoul in April from $684

Return flights