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

Return flights

31 Dec - 07 Jan	easyJet
08 Dec - 14 Dec	easyJet
05 Dec - 07 Dec	easyJet
15 Dec - 17 Dec	easyJet
12 Dec - 16 Dec	easyJet
16 Dec - 19 Dec	Wizz Air UK
24 Dec - 01 Jan	LOT
15 Dec - 21 Dec	Vueling Airlines
22 Dec - 31 Dec	Wizz Air Malta
31 Dec - 05 Jan	LOT
24 Dec - 31 Dec	LOT
18 Dec - 23 Dec	Vueling Airlines
23 Dec - 26 Dec	Lufthansa
31 Dec - 04 Jan	easyJet
31 Dec - 03 Jan	easyJet
26 Dec - 04 Jan	Wizz Air
22 Dec - 03 Jan	Vueling Airlines
24 Dec - 03 Jan	Vueling Airlines
20 Dec - 03 Jan	easyJet
27 Dec - 03 Jan	Jet2

Also check the deals for one-way flights from Lyon 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 Lyon to Keflavik in December from 272€

Return flights