Cheapest return flights from Seoul to Keflavik in September from 587€

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

Return flights

14 Sep - 23 Sep Lufthansa
15 Sep - 25 Sep Lufthansa
10 Sep - 23 Sep Lufthansa
03 Sep - 23 Sep Lufthansa
04 Sep - 18 Sep Lufthansa
22 Sep - 25 Sep Lufthansa
02 Sep - 11 Sep Lufthansa
05 Sep - 10 Sep Lufthansa
12 Sep - 23 Sep Lufthansa
18 Sep - 25 Sep Lufthansa
27 Sep - 03 Oct Scandinavian Airlines
27 Sep - 05 Oct Scandinavian Airlines
27 Sep - 12 Oct Scandinavian Airlines
23 Sep - 02 Oct Finnair
25 Sep - 04 Oct Lufthansa
28 Sep - 05 Oct LOT
26 Sep - 09 Oct Scandinavian Airlines
27 Sep - 09 Oct Scandinavian Airlines
29 Sep - 03 Oct Scandinavian Airlines
30 Sep - 06 Oct LOT

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

Feel free to contact us with any feedback or request another flight research.