Cheapest return flights from Keflavik to Copenhagen in September from 136€

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

Return flights

05 Sep - 09 Sep Fly Play direct
01 Sep - 04 Sep Fly Play direct
02 Sep - 05 Sep Fly Play direct
06 Sep - 09 Sep Fly Play direct
07 Sep - 10 Sep Fly Play direct
01 Sep - 09 Sep Fly Play direct
13 Sep - 17 Sep Fly Play direct
14 Sep - 17 Sep Fly Play direct
15 Sep - 18 Sep Fly Play direct
17 Sep - 20 Sep Fly Play direct
28 Sep - 01 Oct Fly Play direct
26 Sep - 05 Oct Fly Play
30 Sep - 03 Oct Icelandair direct
26 Sep - 05 Oct Icelandair direct

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

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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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