Cheapest return flights from Seoul to Keflavik in September from $914

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

02 Sep - 09 Sep Qatar Airways
08 Sep - 19 Sep Qatar Airways
09 Sep - 21 Sep Finnair
07 Sep - 12 Sep Qatar Airways
10 Sep - 18 Sep Finnair
07 Sep - 14 Sep Qatar Airways
10 Sep - 22 Sep Finnair
18 Sep - 24 Sep Finnair
01 Sep - 10 Sep Finnair
19 Sep - 23 Sep Qatar Airways
22 Sep - 04 Oct Finnair
25 Sep - 05 Oct LOT
28 Sep - 05 Oct LOT
27 Sep - 06 Oct LOT
26 Sep - 04 Oct Air Canada
28 Sep - 07 Oct Air Canada
26 Sep - 16 Oct Lufthansa
30 Sep - 08 Oct LOT
29 Sep - 11 Oct Singapore Airlines
27 Sep - 07 Oct Finnair

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik