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

Return flights

13 Dec - 23 Dec	easyJet
06 Dec - 18 Dec	easyJet
04 Dec - 11 Dec	easyJet
03 Dec - 13 Dec	easyJet
10 Dec - 20 Dec	easyJet
19 Dec - 21 Dec	easyJet
24 Dec - 28 Dec	LOT
22 Dec - 03 Jan	easyJet
26 Dec - 31 Dec	easyJet
28 Dec - 01 Jan	easyJet
20 Dec - 03 Jan	Fly Play	direct
21 Dec - 03 Jan	easyJet
21 Dec - 28 Dec	easyJet
25 Dec - 29 Dec	easyJet
27 Dec - 03 Jan	Fly Play	direct
26 Dec - 02 Jan	easyJet
27 Dec - 02 Jan	easyJet
28 Dec - 02 Jan	easyJet
29 Dec - 04 Jan	easyJet

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 158€

Return flights