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

Return flights

20 Dec - 24 Dec	Wizz Air
01 Dec - 06 Dec	Wizz Air Malta
08 Dec - 11 Dec	Ryanair
03 Dec - 06 Dec	easyJet
12 Dec - 16 Dec	Ryanair
21 Dec - 24 Dec	Wizz Air Malta
03 Dec - 10 Dec	easyJet
11 Dec - 16 Dec	Ryanair
01 Dec - 10 Dec	Ryanair
12 Dec - 15 Dec	easyJet
25 Dec - 01 Jan	Wizz Air
25 Dec - 03 Jan	Wizz Air
22 Dec - 02 Jan	Wizz Air Malta
26 Dec - 01 Jan	Wizz Air Malta
27 Dec - 06 Jan	Wizz Air
31 Dec - 04 Jan	Wizz Air Malta
26 Dec - 06 Jan	Wizz Air Malta
27 Dec - 03 Jan	Wizz Air
29 Dec - 05 Jan	ITA Airways
28 Dec - 01 Jan	Ryanair

Also check the deals for one-way flights from Naples 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 Naples to Keflavik in December from 177€

Return flights