Cheapest return flights from Naples to Keflavik in September from $245

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

Return flights

03 Sep - 07 Sep easyJet
01 Sep - 07 Sep Ryanair
20 Sep - 24 Sep easyJet
27 Sep - 02 Oct easyJet
16 Sep - 23 Sep Lufthansa
25 Sep - 28 Sep Ryanair
24 Sep - 29 Sep Ryanair
02 Sep - 09 Sep Ryanair
01 Sep - 10 Sep Ryanair
01 Sep - 04 Sep Ryanair
04 Sep - 11 Sep Ryanair
30 Sep - 05 Oct Ryanair

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

Skyscanner

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

Feel free to contact us with any feedback or request another flight research.