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

Return flights

31 Oct - 08 Nov	Ryanair
31 Oct - 05 Nov	Ryanair
22 Oct - 26 Oct	Scandinavian Airlines
30 Oct - 06 Nov	Wizz Air
23 Oct - 30 Oct	Wizz Air
30 Oct - 04 Nov	Wizz Air
23 Oct - 25 Oct	Wizz Air
23 Oct - 26 Oct	Wizz Air
31 Oct - 02 Nov	Ryanair
22 Oct - 25 Oct	Ryanair
27 Oct - 30 Oct	Ryanair
22 Oct - 27 Oct	Norwegian
29 Oct - 03 Nov	Ethiopian Airlines
23 Oct - 31 Oct	Ryanair
29 Oct - 02 Nov	Ryanair
27 Oct - 03 Nov	Ryanair
25 Oct - 28 Oct	Finnair
25 Oct - 31 Oct	Wizz Air
30 Oct - 06 Nov	Icelandair	direct
31 Oct - 06 Nov	Icelandair	direct

Also check the deals for one-way flights from Stockholm 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 Stockholm to Keflavik in October from 241€

Return flights