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

Return flights

21 Jan - 25 Jan	Ryanair
23 Jan - 05 Feb	Wizz Air
20 Jan - 22 Jan	Ryanair
21 Jan - 22 Jan	Ryanair
28 Jan - 01 Feb	Wizz Air
23 Jan - 25 Jan	Wizz Air
21 Jan - 23 Jan	Ryanair
14 Jan - 18 Jan	Ryanair
21 Jan - 29 Jan	Ryanair
30 Jan - 13 Feb	Ryanair
21 Jan - 27 Jan	Ryanair
18 Jan - 24 Jan	Lufthansa
30 Jan - 01 Feb	Wizz Air
20 Jan - 21 Jan	Ryanair
23 Jan - 08 Feb	Wizz Air
30 Jan - 05 Feb	Wizz Air
26 Jan - 11 Feb	Ryanair
29 Jan - 13 Feb	Ryanair
24 Jan - 01 Feb	Ryanair
30 Jan - 14 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 182€

Return flights