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

Return flights

09 Mar - 17 Mar	Scandinavian Airlines
02 Mar - 08 Mar	Scandinavian Airlines
27 Mar - 05 Apr	Scandinavian Airlines
26 Mar - 07 Apr	China Eastern
06 Mar - 11 Mar	Finnair
08 Mar - 16 Mar	Finnair
05 Mar - 10 Mar	Finnair
06 Mar - 13 Mar	Finnair
02 Mar - 09 Mar	Finnair
04 Mar - 09 Mar	T'way Air
16 Mar - 25 Mar	Finnair
09 Mar - 16 Mar	Finnair
26 Mar - 06 Apr	Air China
22 Mar - 03 Apr	Emirates

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

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 Seoul to Keflavik in March from $653

Return flights