AirHint found the following cheapest return flights from Keflavik (KEF) to Berlin (BER) in December 2025 (see full year).

Return flights

06 Dec - 13 Dec	SWISS
01 Dec - 04 Dec	easyJet
04 Dec - 08 Dec	Transavia France
05 Dec - 09 Dec	easyJet
20 Dec - 05 Jan	easyJet
19 Dec - 06 Jan	Scandinavian Airlines
11 Dec - 15 Dec	easyJet
24 Dec - 31 Dec	easyJet
07 Dec - 14 Dec	easyJet
15 Dec - 23 Dec	Icelandair	direct
19 Dec - 28 Dec	Scandinavian Airlines
24 Dec - 31 Dec	Icelandair	direct
13 Dec - 03 Jan	Icelandair	direct
19 Dec - 06 Jan	Icelandair	direct
20 Dec - 05 Jan	Icelandair	direct

Also check the deals for one-way flights from Keflavik to Berlin 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 Berlin

Cheap car rent in Berlin

Cheapest return flights from Keflavik to Berlin in December from 196€

Return flights