Cheapest return flights from Seoul to Keflavik in August from $929

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 August 2025 (see full year).

Return flights

20 Aug - 31 Aug Lufthansa
28 Aug - 31 Aug Lufthansa
21 Aug - 01 Sep LOT
23 Aug - 30 Aug Qatar Airways
27 Aug - 31 Aug Lufthansa
10 Aug - 18 Aug KLM
18 Aug - 26 Aug Qatar Airways
20 Aug - 01 Sep Lufthansa
14 Aug - 21 Aug KLM
05 Aug - 12 Aug Finnair
21 Aug - 27 Aug Finnair
22 Aug - 30 Aug Qatar Airways
28 Aug - 12 Sep Lufthansa
22 Aug - 01 Sep Lufthansa

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

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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