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

16 Sep - 21 Sep Fly Play direct
01 Sep - 17 Sep Fly Play direct
20 Sep - 30 Sep Scandinavian Airlines
17 Sep - 24 Sep Fly Play direct
18 Sep - 24 Sep Fly Play direct
18 Sep - 01 Oct Fly Play direct
20 Sep - 30 Sep Fly Play direct
27 Sep - 05 Oct Fly Play direct
08 Sep - 11 Sep Fly Play direct
06 Sep - 09 Sep Fly Play direct
05 Sep - 08 Sep Fly Play direct
09 Sep - 12 Sep Fly Play direct
27 Sep - 11 Oct Fly Play direct
26 Sep - 03 Oct Scandinavian Airlines
30 Sep - 03 Oct Fly Play direct
28 Sep - 01 Oct Icelandair direct
29 Sep - 02 Oct Icelandair direct
28 Sep - 07 Oct Scandinavian Airlines
28 Sep - 08 Oct Scandinavian Airlines
28 Sep - 06 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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