Cheapest return flights from Keflavik to Copenhagen in September from $165

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

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

Return flights

09 Sep - 12 Sep Fly Play direct
10 Sep - 13 Sep Fly Play direct
08 Sep - 11 Sep Fly Play direct
17 Sep - 20 Sep Fly Play direct
24 Sep - 27 Sep Fly Play direct
01 Sep - 04 Sep Fly Play direct
02 Sep - 05 Sep Fly Play direct
03 Sep - 06 Sep Fly Play direct
12 Sep - 15 Sep Fly Play direct
13 Sep - 16 Sep Fly Play direct
30 Sep - 03 Oct Fly Play direct
29 Sep - 02 Oct Fly Play direct
28 Sep - 01 Oct Fly Play direct

Also check the deals for one-way flights from Keflavik to Copenhagen 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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