AirHint found the following cheapest return flights from Reykjavik (REK) to Brussels (BRU) in December 2025 (see full year).

Return flights

20 Dec - 22 Dec	easyJet
30 Dec - 09 Jan	Lufthansa
13 Dec - 21 Jan	easyJet
18 Dec - 21 Dec	easyJet
19 Dec - 21 Dec	easyJet
14 Dec - 21 Dec	Scandinavian Airlines
24 Dec - 04 Jan	Wizz Air
25 Dec - 05 Jan	easyJet
17 Dec - 20 Dec	easyJet
30 Dec - 02 Jan	easyJet
30 Dec - 09 Jan	Icelandair	direct
19 Dec - 21 Dec	Icelandair	direct
14 Dec - 21 Dec	Icelandair	direct
18 Dec - 21 Dec	Icelandair	direct
30 Dec - 02 Jan	Icelandair	direct
24 Dec - 04 Jan	Icelandair	direct

Also check the deals for one-way flights from Reykjavik to Brussels in December.

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.

Book a cheap hotel in Brussels

Cheap car rent in Brussels

Cheapest return flights from Reykjavik to Brussels in December from $209

Return flights