Cheapest return flights from Seoul to Keflavik in September from $672

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

Return flights

22 Sep - 30 Sep Scandinavian Airlines
15 Sep - 18 Sep Scandinavian Airlines
22 Sep - 05 Oct Scandinavian Airlines
20 Sep - 02 Oct Scandinavian Airlines
22 Sep - 02 Oct Scandinavian Airlines
24 Sep - 05 Oct Scandinavian Airlines
17 Sep - 30 Sep Scandinavian Airlines
24 Sep - 30 Sep Scandinavian Airlines
17 Sep - 25 Sep Scandinavian Airlines
20 Sep - 30 Sep Scandinavian Airlines
15 Sep - 25 Sep Scandinavian Airlines
15 Sep - 23 Sep Scandinavian Airlines
13 Sep - 18 Sep Scandinavian Airlines
22 Sep - 25 Sep Scandinavian Airlines
22 Sep - 03 Oct Scandinavian Airlines
29 Sep - 02 Oct Scandinavian Airlines
26 Sep - 05 Oct Scandinavian Airlines
24 Sep - 01 Oct Air China
22 Sep - 01 Oct T'way Air
26 Sep - 03 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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