Cheapest return flights from Seoul to Keflavik in September from $905

Best time to book flights for Seoul (ICN) to Keflavik (KEF) flights at AirHint

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

Return flights

09 Sep - 21 Sep LOT
01 Sep - 05 Sep Qatar Airways
02 Sep - 09 Sep Qatar Airways
04 Sep - 08 Sep LOT
20 Sep - 28 Sep LOT
01 Sep - 14 Sep Finnair
11 Sep - 23 Sep Finnair
11 Sep - 21 Sep Finnair
10 Sep - 22 Sep Finnair
01 Sep - 08 Sep Finnair
25 Sep - 06 Oct LOT
23 Sep - 13 Oct LOT
28 Sep - 06 Oct LOT
28 Sep - 05 Oct LOT
27 Sep - 06 Oct LOT
25 Sep - 13 Oct Singapore Airlines
24 Sep - 13 Oct Finnair
27 Sep - 05 Oct LOT
29 Sep - 06 Oct Air Canada
26 Sep - 04 Oct Air Canada

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

Skyscanner

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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