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

Return flights

20 Apr - 09 May	Wizz Air
26 Apr - 06 May	Wizz Air
11 Apr - 21 Apr	Ryanair
27 Apr - 06 May	airBaltic
24 Apr - 06 May	Scandinavian Airlines
11 Apr - 20 Apr	Ryanair
11 Apr - 22 Apr	Ryanair
21 Apr - 28 Apr	LOT
07 Apr - 21 Apr	Finnair
28 Apr - 06 May	airBaltic
13 Apr - 21 Apr	Finnair
07 Apr - 22 Apr	Finnair
01 Apr - 14 Apr	Wizz Air
10 Apr - 22 Apr	Wizz Air
28 Apr - 07 May	airBaltic
13 Apr - 26 Apr	Wizz Air
23 Apr - 01 May	Finnair
28 Apr - 01 May	Wizz Air

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 $683

Return flights