Cheapest return flights from Copenhagen to Keflavik in September from $178

Best time to book flights for Copenhagen (CPH) to Keflavik (KEF) flights at AirHint

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

Return flights

13 Sep - 20 Sep Scandinavian Airlines direct
16 Sep - 20 Sep Fly Play direct
10 Sep - 17 Sep Fly Play direct
01 Sep - 08 Sep Fly Play direct
06 Sep - 13 Sep Fly Play direct
02 Sep - 10 Sep Fly Play direct
10 Sep - 13 Sep Fly Play direct
15 Sep - 20 Sep Fly Play direct
29 Sep - 06 Oct Scandinavian Airlines direct
20 Sep - 09 Oct Scandinavian Airlines direct
06 Sep - 09 Sep Fly Play direct
07 Sep - 10 Sep Fly Play direct
19 Sep - 05 Oct Fly Play direct
20 Sep - 04 Oct Fly Play direct
26 Sep - 04 Oct Fly Play direct
28 Sep - 01 Oct Scandinavian Airlines direct
30 Sep - 03 Oct Fly Play direct

Also check the deals for one-way flights from Copenhagen 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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