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

Return flights

31 Dec - 14 Jan	easyJet
23 Dec - 08 Jan	easyJet
23 Dec - 07 Jan	easyJet
23 Dec - 09 Jan	easyJet
31 Dec - 06 Jan	easyJet
23 Dec - 06 Jan	easyJet
31 Dec - 08 Jan	easyJet
26 Dec - 31 Dec	easyJet
27 Dec - 31 Dec	Jet2
29 Dec - 01 Jan	easyJet
28 Dec - 31 Dec	easyJet
25 Dec - 01 Jan	easyJet
27 Dec - 01 Jan	Jet2
25 Dec - 28 Dec	Air France

Also check the deals for one-way flights from Geneva 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 Geneva to Keflavik in December from 348€

Return flights