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

Return flights

19 Aug - 26 Aug	KLM
16 Aug - 26 Aug	KLM
29 Aug - 06 Sep	easyJet
17 Aug - 28 Aug	SWISS
31 Aug - 04 Sep	SWISS
01 Aug - 08 Aug	Ryanair
18 Aug - 29 Aug	Lufthansa
18 Aug - 27 Aug	Lufthansa
13 Aug - 22 Aug	Scandinavian Airlines
03 Aug - 10 Aug	SWISS
11 Aug - 25 Aug	Scandinavian Airlines
08 Aug - 16 Aug	Ryanair

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

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 August from $324

Return flights