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

Return flights

18 Mar - 21 Mar	easyJet
11 Mar - 14 Mar	easyJet
11 Mar - 16 Mar	easyJet
25 Mar - 29 Mar	easyJet
10 Mar - 16 Mar	easyJet
14 Mar - 21 Mar	Ryanair
11 Mar - 18 Mar	easyJet
11 Mar - 17 Mar	easyJet
10 Mar - 17 Mar	easyJet
16 Mar - 20 Mar	easyJet
28 Mar - 04 Apr	Wizz Air
31 Mar - 04 Apr	Wizz Air Malta
26 Mar - 05 Apr	Ryanair
26 Mar - 04 Apr	Ryanair
23 Mar - 03 Apr	Ryanair
27 Mar - 04 Apr	Ryanair
31 Mar - 05 Apr	Ryanair
29 Mar - 06 Apr	Wizz Air Malta
31 Mar - 06 Apr	Wizz Air Malta
27 Mar - 03 Apr	Ryanair

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

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 March from $166

Return flights