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

Return flights

05 Sep - 20 Oct	Ryanair
16 Sep - 22 Sep	Ryanair
05 Sep - 11 Sep	Ryanair
11 Sep - 15 Sep	Ryanair
10 Sep - 25 Oct	Ryanair
04 Sep - 10 Sep	Wizz Air Malta
12 Sep - 15 Sep	Norwegian
11 Sep - 14 Sep	Ryanair
11 Sep - 13 Sep	Ryanair
05 Sep - 12 Sep	Ryanair
12 Sep - 22 Sep	Norwegian
18 Sep - 22 Sep	Ryanair
30 Sep - 06 Oct	easyJet
26 Sep - 03 Oct	Ryanair
19 Sep - 06 Oct	Norwegian
17 Sep - 06 Oct	Vueling Airlines
29 Sep - 03 Oct	Ryanair
26 Sep - 13 Oct	Norwegian
26 Sep - 06 Oct	Norwegian
26 Sep - 11 Oct	Norwegian

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

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 Oslo in September from $133

Return flights