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

Return flights

20 Jan - 23 Jan	Ryanair
14 Jan - 20 Jan	Ryanair
27 Jan - 01 Feb	Ryanair
17 Jan - 22 Jan	Ryanair
14 Jan - 18 Jan	Ryanair
23 Jan - 25 Jan	Ryanair
08 Jan - 13 Jan	Scandinavian Airlines
20 Jan - 27 Jan	Ryanair
16 Jan - 18 Jan	Scandinavian Airlines
31 Jan - 04 Feb	Ryanair
16 Jan - 25 Jan	Scandinavian Airlines
13 Jan - 17 Jan	Ryanair
25 Jan - 06 Feb	Wizz Air
30 Jan - 05 Feb	Ryanair
23 Jan - 04 Feb	Scandinavian Airlines
30 Jan - 01 Feb	Ryanair
30 Jan - 08 Feb	Wizz Air
25 Jan - 01 Feb	Wizz Air
30 Jan - 07 Feb	Ryanair
25 Jan - 08 Feb	Scandinavian Airlines

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 $189

Return flights