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

Return flights

14 Dec - 18 Dec	easyJet
04 Dec - 12 Dec	easyJet
15 Dec - 18 Dec	easyJet
11 Dec - 18 Dec	easyJet
22 Dec - 30 Dec	Ryanair
20 Dec - 27 Dec	easyJet
22 Dec - 28 Dec	easyJet
31 Dec - 04 Jan	easyJet
26 Dec - 28 Dec	Volotea
30 Dec - 02 Jan	easyJet
26 Dec - 30 Dec	Volotea
30 Dec - 03 Jan	easyJet
28 Dec - 03 Jan	easyJet
27 Dec - 02 Jan	Ryanair

Also check the deals for one-way flights from Nantes 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 Nantes to Keflavik in December from 208€

Return flights