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

Return flights

01 Dec - 05 Dec	easyJet
07 Dec - 12 Dec	easyJet
08 Dec - 12 Dec	easyJet
07 Dec - 22 Dec	easyJet
12 Dec - 15 Dec	easyJet
16 Dec - 21 Dec	easyJet
05 Dec - 12 Dec	easyJet
17 Dec - 21 Dec	easyJet
21 Dec - 28 Dec	Scandinavian Airlines
14 Dec - 17 Dec	KLM
27 Dec - 05 Jan	Scandinavian Airlines
31 Dec - 06 Jan	Eurowings
27 Dec - 06 Jan	Scandinavian Airlines
30 Dec - 06 Jan	Eurowings
29 Dec - 04 Jan	Scandinavian Airlines
27 Dec - 03 Jan	Scandinavian Airlines
26 Dec - 02 Jan	easyJet
30 Dec - 03 Jan	Scandinavian Airlines
31 Dec - 03 Jan	Eurowings
28 Dec - 03 Jan	Scandinavian Airlines

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

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Cheapest return flights from Duesseldorf to Keflavik in December from 159€

Return flights