Cheapest return flights from Seoul to Keflavik in May from $774

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

Return flights

23 May - 29 May Scandinavian Airlines
01 May - 05 May Scandinavian Airlines
25 May - 05 Jun Asiana Airlines
18 May - 27 May Scandinavian Airlines
18 May - 31 May Scandinavian Airlines
11 May - 20 May Scandinavian Airlines
01 May - 16 May Finnair
02 May - 16 May Finnair
27 May - 29 May Lufthansa
05 May - 18 May LOT
03 May - 15 May Singapore Airlines

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

Skyscanner

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Feel free to contact us with any feedback or request another flight research.