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

Return flights

11 Oct - 16 Oct	Ryanair
04 Oct - 11 Oct	Wizz Air
01 Oct - 08 Oct	Wizz Air
20 Oct - 30 Oct	Wizz Air Malta
02 Oct - 15 Oct	Wizz Air
02 Oct - 16 Oct	Wizz Air
04 Oct - 16 Oct	Wizz Air
09 Oct - 11 Oct	Wizz Air
08 Oct - 15 Oct	Wizz Air
14 Oct - 18 Oct	Wizz Air
18 Oct - 07 Nov	Ryanair
22 Oct - 01 Nov	Wizz Air
28 Oct - 04 Nov	Ryanair
30 Oct - 06 Nov	Scandinavian Airlines
25 Oct - 02 Nov	Wizz Air
26 Oct - 02 Nov	Wizz Air
30 Oct - 06 Nov	Icelandair	direct
18 Oct - 07 Nov	Icelandair	direct
26 Oct - 02 Nov	Icelandair	direct

Also check the deals for one-way flights from Brussels 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 Brussels to Keflavik in October from 169€

Return flights