Cheapest return flights from Seoul to Keflavik in May from $748

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

Return flights

25 May - 28 May Scandinavian Airlines
06 May - 20 May Scandinavian Airlines
27 May - 03 Jun Scandinavian Airlines
22 May - 01 Jun Scandinavian Airlines
22 May - 02 Jun Lufthansa
22 May - 07 Jun Scandinavian Airlines
10 May - 19 May Lufthansa
16 May - 24 May LOT
24 May - 27 May LOT
30 May - 06 Jun LOT
29 May - 08 Jun Lufthansa
02 May - 07 May Finnair
23 May - 01 Jun Lufthansa
16 May - 23 May Finnair
22 May - 30 May Lufthansa
23 May - 30 May Finnair
01 May - 09 May Finnair

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

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