Cheapest return flights from Seoul to Keflavik in September from 554€

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

Return flights

22 Sep - 21 Oct Scandinavian Airlines
17 Sep - 28 Sep Scandinavian Airlines
19 Sep - 26 Sep Scandinavian Airlines
17 Sep - 30 Sep Scandinavian Airlines
17 Sep - 26 Sep Scandinavian Airlines
22 Sep - 30 Sep Scandinavian Airlines
24 Sep - 05 Oct Scandinavian Airlines
20 Sep - 05 Oct Scandinavian Airlines
13 Sep - 21 Sep Scandinavian Airlines
13 Sep - 28 Sep Scandinavian Airlines
18 Sep - 28 Sep Asiana Airlines
15 Sep - 22 Sep Lufthansa
19 Sep - 27 Sep Scandinavian Airlines
26 Sep - 05 Oct Scandinavian Airlines
25 Sep - 02 Oct Lufthansa
16 Sep - 21 Oct Lufthansa
26 Sep - 07 Oct Air Canada
30 Sep - 12 Oct KLM
29 Sep - 10 Oct Singapore Airlines
30 Sep - 10 Oct LOT

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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