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

Return flights

18 Oct - 25 Oct	Wizz Air
04 Oct - 07 Oct	Wizz Air
04 Oct - 09 Oct	Wizz Air
16 Oct - 18 Oct	Wizz Air
25 Oct - 02 Nov	Wizz Air
14 Oct - 18 Oct	Wizz Air
09 Oct - 16 Oct	Wizz Air
25 Oct - 29 Oct	easyJet
05 Oct - 11 Oct	Wizz Air
10 Oct - 12 Oct	Wizz Air
23 Oct - 30 Oct	Fly Play	direct
26 Oct - 05 Nov	Wizz Air
31 Oct - 03 Nov	Wizz Air
21 Oct - 04 Nov	Wizz Air
24 Oct - 02 Nov	Fly Play	direct
27 Oct - 06 Nov	Wizz Air
27 Oct - 05 Nov	Wizz Air
28 Oct - 06 Nov	Ryanair
27 Oct - 05 Nov	Scandinavian Airlines	direct
27 Oct - 06 Nov	Scandinavian Airlines	direct

Also check the deals for one-way flights from Copenhagen to Keflavik 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 Copenhagen to Keflavik in October from 150€

Return flights