AirHint found the following cheapest return flights from Naples (NAP) to Keflavik (KEF) in January 2026 (see full year).

Return flights

14 Jan - 24 Jan	easyJet
17 Jan - 24 Jan	easyJet
15 Jan - 24 Jan	easyJet
14 Jan - 19 Jan	Ryanair
12 Jan - 16 Jan	Ryanair
23 Jan - 25 Jan	Ryanair
30 Jan - 05 Feb	Ryanair
28 Jan - 01 Feb	easyJet
21 Jan - 25 Jan	Wizz Air Malta
01 Jan - 07 Jan	KLM
01 Jan - 06 Jan	ITA Airways
04 Jan - 11 Jan	Ryanair
31 Jan - 07 Feb	KLM

Also check the deals for one-way flights from Naples to Keflavik in January.

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 January from $168

Return flights