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

Return flights

23 Oct - 25 Oct	Wizz Air
09 Oct - 17 Oct	Fly Play	direct
11 Oct - 19 Oct	Fly Play	direct
15 Oct - 19 Oct	Wizz Air
07 Oct - 09 Oct	Wizz Air
13 Oct - 16 Oct	Fly Play	direct
20 Oct - 23 Oct	Fly Play	direct
30 Oct - 02 Nov	Fly Play	direct
13 Oct - 20 Oct	Fly Play
01 Oct - 04 Oct	Fly Play	direct
13 Oct - 20 Oct	Fly Play	direct
31 Oct - 07 Nov	Icelandair
31 Oct - 07 Nov	Icelandair	direct
29 Oct - 01 Nov	Icelandair	direct
31 Oct - 03 Nov	Icelandair	direct

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

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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Cheapest return flights from Keflavik to Copenhagen in October from 151€

Return flights