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

Return flights

06 May - 09 May	SWISS
07 May - 11 May	easyJet
07 May - 09 May	easyJet
19 May - 26 May	easyJet
05 May - 10 May	easyJet
11 May - 17 May	easyJet
05 May - 09 May	easyJet
08 May - 09 May	Scandinavian Airlines
26 May - 04 Jun	Ryanair
31 May - 07 Jun	easyJet
01 May - 03 May	easyJet
10 May - 16 May	Wizz Air Malta
30 May - 02 Jun	easyJet
29 May - 02 Jun	Austrian Airlines
29 May - 03 Jun	easyJet

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 182€

Return flights