Cheapest return HEL–ICN flights, May

AirHint found the following cheapest return flights from Helsinki (HEL) to Seoul (ICN) in May 2026 (see full year).

Return flights

03 May - 10 May China Southern
21 May - 28 May China Southern
24 May - 02 Jun Finnair
14 May - 31 May Ryanair
21 May - 14 Jun China Southern
17 May - 28 May China Southern
19 May - 02 Jun Ryanair
18 May - 27 May Norwegian Air Sweden AOC
03 May - 17 May China Southern
13 May - 27 May Ryanair
04 May - 11 May KLM
18 May - 29 May Norwegian Air Sweden AOC
25 May - 01 Jun Turkish Airlines
14 May - 29 May Ryanair
31 May - 20 Jun Norwegian Air Sweden AOC
29 May - 13 Jun airBaltic
25 May - 01 Jun Finnair direct
19 May - 02 Jun Finnair direct
29 May - 13 Jun Finnair direct

Also check the deals for one-way flights from Helsinki to Seoul in May.

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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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