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

Return flights

06 Dec - 09 Dec	easyJet
06 Dec - 16 Dec	easyJet
06 Dec - 13 Dec	easyJet
15 Dec - 19 Dec	easyJet
02 Dec - 11 Dec	easyJet
09 Dec - 13 Dec	easyJet
02 Dec - 05 Dec	easyJet
02 Dec - 16 Dec	easyJet
01 Dec - 10 Dec	easyJet
02 Dec - 06 Dec	easyJet
30 Dec - 06 Jan	easyJet
20 Dec - 01 Jan	easyJet
23 Dec - 01 Jan	easyJet
31 Dec - 04 Jan	easyJet
21 Dec - 02 Jan	easyJet
27 Dec - 01 Jan	easyJet
26 Dec - 01 Jan	KLM
22 Dec - 02 Jan	easyJet
30 Dec - 02 Jan	easyJet
20 Dec - 02 Jan	easyJet

Also check the deals for one-way flights from Zurich 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 Zurich to Keflavik in December from 135€

Return flights