Cheapest return flights from Seoul to Keflavik in September from $697

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

Return flights

01 Sep - 08 Sep Scandinavian Airlines
08 Sep - 15 Sep Scandinavian Airlines
05 Sep - 15 Sep Scandinavian Airlines
03 Sep - 11 Sep Scandinavian Airlines
04 Sep - 13 Sep Scandinavian Airlines
05 Sep - 13 Sep Scandinavian Airlines
01 Sep - 18 Sep Scandinavian Airlines
08 Sep - 20 Sep Scandinavian Airlines
11 Sep - 20 Sep Scandinavian Airlines
11 Sep - 21 Sep Scandinavian Airlines
17 Sep - 02 Oct Finnair
23 Sep - 05 Oct Scandinavian Airlines
24 Sep - 01 Oct Scandinavian Airlines
25 Sep - 11 Oct Scandinavian Airlines
19 Sep - 01 Oct Scandinavian Airlines
24 Sep - 04 Oct Scandinavian Airlines
19 Sep - 04 Oct Scandinavian Airlines
23 Sep - 03 Oct Finnair
19 Sep - 03 Oct Air Astana

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

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