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

Return flights

29 Oct - 03 Nov	Scandinavian Airlines
30 Oct - 03 Nov	Ryanair
08 Oct - 14 Oct	Wizz Air
04 Oct - 14 Oct	Wizz Air
23 Oct - 29 Oct	Wizz Air
23 Oct - 26 Oct	Wizz Air
16 Oct - 26 Oct	Wizz Air
27 Oct - 06 Nov	Wizz Air
31 Oct - 06 Nov	Wizz Air
13 Oct - 17 Oct	KLM
31 Oct - 03 Nov	Ryanair
14 Oct - 19 Oct	Wizz Air
09 Oct - 11 Oct	Wizz Air
28 Oct - 02 Nov	Wizz Air
04 Oct - 11 Oct	Wizz Air
24 Oct - 29 Oct	Ryanair
30 Oct - 09 Nov	Ryanair
29 Oct - 02 Nov	Wizz Air
30 Oct - 07 Nov	Ryanair
26 Oct - 02 Nov	Wizz Air

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 $192

Return flights