Cheapest return flights from Seoul to Keflavik in September from $709

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

Return flights

02 Sep - 09 Sep Scandinavian Airlines
10 Sep - 16 Sep Scandinavian Airlines
05 Sep - 16 Sep Scandinavian Airlines
10 Sep - 15 Sep Scandinavian Airlines
01 Sep - 08 Sep Scandinavian Airlines
02 Sep - 11 Sep Scandinavian Airlines
04 Sep - 14 Sep Scandinavian Airlines
10 Sep - 18 Sep Scandinavian Airlines
09 Sep - 22 Sep Scandinavian Airlines
14 Sep - 18 Sep Scandinavian Airlines
29 Sep - 15 Oct Finnair
29 Sep - 06 Oct Finnair
29 Sep - 12 Oct Scandinavian Airlines
22 Sep - 01 Oct Scandinavian Airlines
30 Sep - 14 Oct Finnair
30 Sep - 15 Oct Finnair
27 Sep - 08 Oct Finnair
26 Sep - 08 Oct Finnair
28 Sep - 08 Oct Finnair
28 Sep - 12 Oct Scandinavian Airlines

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

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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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