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

Return flights

19 May - 26 May	easyJet
16 May - 23 May	easyJet
13 May - 20 May	Ryanair
30 May - 07 Jun	easyJet
30 May - 02 Jun	easyJet
18 May - 23 May	Lufthansa
14 May - 21 May	Wizz Air Malta
12 May - 19 May	Lufthansa
01 May - 01 May	Ryanair

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

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 May from 146€

Return flights