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

Return flights

11 Nov - 21 Nov	LOT
09 Nov - 21 Nov	LOT
08 Nov - 14 Nov	Lufthansa
24 Nov - 05 Dec	Finnair
25 Nov - 05 Dec	Finnair
29 Nov - 06 Dec	Finnair
07 Nov - 14 Nov	Finnair
23 Nov - 30 Nov	Finnair
29 Nov - 09 Dec	Finnair
08 Nov - 15 Nov	Finnair
08 Nov - 22 Nov	Finnair
20 Nov - 27 Nov	Qatar Airways
20 Nov - 28 Nov	Qatar Airways
18 Nov - 25 Nov	Qatar Airways

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

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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Cheapest return flights from Seoul to Keflavik in November from $776

Return flights