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

Return flights

11 Dec - 18 Dec	easyJet
11 Dec - 15 Dec	easyJet
04 Dec - 07 Dec	easyJet
16 Dec - 21 Dec	easyJet
05 Dec - 14 Dec	easyJet
07 Dec - 14 Dec	easyJet
05 Dec - 21 Dec	easyJet
17 Dec - 22 Dec	easyJet
15 Dec - 23 Dec	easyJet
24 Dec - 30 Dec	easyJet
29 Dec - 04 Jan	LOT
26 Dec - 05 Jan	easyJet
27 Dec - 04 Jan	LOT
28 Dec - 04 Jan	easyJet
21 Dec - 02 Jan	easyJet
29 Dec - 02 Jan	easyJet
30 Dec - 03 Jan	easyJet
29 Dec - 03 Jan	easyJet
26 Dec - 02 Jan	easyJet
27 Dec - 03 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 $137

Return flights