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

Return flights

07 Dec - 11 Dec	easyJet
06 Dec - 09 Dec	easyJet
06 Dec - 10 Dec	easyJet
06 Dec - 13 Dec	easyJet
07 Dec - 09 Dec	easyJet
08 Dec - 13 Dec	easyJet
10 Dec - 13 Dec	easyJet
07 Dec - 13 Dec	easyJet
09 Dec - 13 Dec	easyJet
01 Dec - 10 Dec	easyJet
30 Dec - 07 Jan	easyJet
30 Dec - 09 Jan	Scandinavian Airlines
31 Dec - 03 Jan	easyJet
30 Dec - 04 Jan	Scandinavian Airlines
30 Dec - 03 Jan	Scandinavian Airlines
25 Dec - 04 Jan	Scandinavian Airlines
31 Dec - 02 Jan	easyJet
18 Dec - 03 Jan	Scandinavian Airlines
28 Dec - 04 Jan	Scandinavian Airlines
19 Dec - 04 Jan	Scandinavian Airlines

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 $196

Return flights