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

Return flights

11 Oct - 14 Oct	Wizz Air
30 Oct - 02 Nov	Wizz Air
16 Oct - 23 Oct	Wizz Air
07 Oct - 14 Oct	Wizz Air
30 Oct - 06 Nov	Wizz Air
23 Oct - 28 Oct	Wizz Air
06 Oct - 13 Oct	Jet2
16 Oct - 23 Oct	Icelandair	direct
07 Oct - 14 Oct	Icelandair	direct
30 Oct - 06 Nov	Icelandair	direct
23 Oct - 28 Oct	Icelandair	direct
06 Oct - 13 Oct	Icelandair	direct

Also check the deals for one-way flights from Keflavik to Stockholm 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 Stockholm in October from $158

Return flights