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

Return flights

16 Dec - 23 Dec	easyJet
30 Dec - 04 Jan	Scandinavian Airlines
16 Dec - 22 Dec	easyJet
29 Dec - 04 Jan	Scandinavian Airlines
18 Dec - 24 Dec	LOT
28 Dec - 02 Jan	Scandinavian Airlines
31 Dec - 03 Jan	easyJet
26 Dec - 31 Dec	Scandinavian Airlines
22 Dec - 28 Dec	easyJet
26 Dec - 02 Jan	Scandinavian Airlines
21 Dec - 26 Dec	easyJet
20 Dec - 24 Dec	easyJet
21 Dec - 27 Dec	easyJet
20 Dec - 03 Jan	easyJet
30 Dec - 03 Jan	easyJet
27 Dec - 01 Jan	easyJet
16 Dec - 23 Dec	Icelandair	direct
28 Dec - 01 Jan	Scandinavian Airlines
24 Dec - 31 Dec	easyJet
27 Dec - 03 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 213€

Return flights