AirHint found the following cheapest return flights from Brussels (BRU) to Keflavik (KEF) in January 2026 (see full year).

Return flights

27 Jan - 03 Feb	Ryanair
25 Jan - 30 Jan	Wizz Air
20 Jan - 23 Jan	Ryanair
18 Jan - 23 Jan	Wizz Air
01 Jan - 10 Jan	Lufthansa
22 Jan - 29 Jan	Lufthansa
05 Jan - 11 Jan	Ryanair
25 Jan - 06 Feb	Wizz Air
06 Jan - 10 Jan	Ryanair
28 Jan - 08 Feb	Ryanair
24 Jan - 29 Jan	Ryanair
31 Jan - 07 Feb	Ryanair
26 Jan - 04 Feb	Ryanair
15 Jan - 23 Jan	Lufthansa
25 Jan - 05 Feb	Wizz Air
16 Jan - 01 Feb	Wizz Air
22 Jan - 01 Feb	Ryanair
29 Jan - 01 Feb	Ryanair
25 Jan - 30 Jan	Icelandair	direct
29 Jan - 06 Feb	Wizz Air

Also check the deals for one-way flights from Brussels to Keflavik in January.

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 January from 156€

Return flights