Cheapest return flights from Seoul to Keflavik in December from $650

AirHint found the following cheapest return flights from Seoul (ICN) to Keflavik (KEF) in December 2025 (see full year).

Return flights

01 Dec - 07 Dec Scandinavian Airlines
01 Dec - 09 Dec Scandinavian Airlines
03 Dec - 07 Dec Scandinavian Airlines
17 Dec - 28 Dec Scandinavian Airlines
03 Dec - 11 Dec Scandinavian Airlines
01 Dec - 11 Dec Scandinavian Airlines
03 Dec - 14 Dec Scandinavian Airlines
05 Dec - 11 Dec Scandinavian Airlines
06 Dec - 14 Dec LOT
03 Dec - 10 Dec Scandinavian Airlines
26 Dec - 06 Jan Scandinavian Airlines
22 Dec - 01 Jan Scandinavian Airlines
22 Dec - 06 Jan Scandinavian Airlines
24 Dec - 11 Jan LOT
25 Dec - 07 Jan KLM
24 Dec - 01 Jan Scandinavian Airlines
22 Dec - 03 Jan Finnair
29 Dec - 10 Jan Finnair
28 Dec - 03 Jan Finnair
22 Dec - 05 Jan Finnair

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

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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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