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

Return flights

30 Oct - 06 Nov	Wizz Air
30 Oct - 08 Nov	Ryanair
23 Oct - 26 Oct	Scandinavian Airlines
25 Oct - 30 Oct	Norwegian Air Sweden AOC
31 Oct - 09 Nov	Wizz Air
31 Oct - 10 Nov	Wizz Air
24 Oct - 28 Oct	easyJet
27 Oct - 30 Oct	Ryanair
24 Oct - 01 Nov	Scandinavian Airlines
23 Oct - 28 Oct	Wizz Air
27 Oct - 03 Nov	Ryanair
23 Oct - 30 Oct	Wizz Air
30 Oct - 03 Nov	Ryanair
31 Oct - 08 Nov	easyJet
26 Oct - 02 Nov	Ryanair
30 Oct - 01 Nov	Ryanair
23 Oct - 29 Oct	Wizz Air
24 Oct - 27 Oct	Norwegian
23 Oct - 26 Oct	Scandinavian Airlines	direct
25 Oct - 29 Oct	Wizz Air

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 $336

Return flights