AirHint found the following cheapest return flights from Naples (NAP) to Keflavik (KEF) in August 2025 (see full year).

Return flights

25 Aug - 07 Sep	Ryanair
25 Aug - 01 Sep	Ryanair
25 Aug - 30 Aug	Ryanair
29 Aug - 31 Aug	Ryanair
21 Aug - 28 Aug	Ryanair
06 Aug - 14 Aug	Ryanair
25 Aug - 03 Sep	Ryanair
13 Aug - 19 Aug	Ryanair
28 Aug - 31 Aug	Ryanair
25 Aug - 02 Sep	Ryanair
14 Aug - 21 Aug	Wizz Air Malta
23 Aug - 27 Aug	SWISS
27 Aug - 02 Sep	Ryanair
13 Aug - 20 Aug	Ryanair
06 Aug - 20 Aug	Ryanair
24 Aug - 02 Sep	Ryanair
24 Aug - 07 Sep	Vueling Airlines

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Naples to Keflavik in August from $288

Return flights