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

Return flights

27 Sep - 30 Sep	easyJet	direct
13 Sep - 23 Sep	easyJet
27 Sep - 29 Sep	easyJet	direct
13 Sep - 18 Sep	easyJet	direct
13 Sep - 16 Sep	easyJet	direct
13 Sep - 23 Sep	easyJet	direct
27 Sep - 28 Sep	easyJet
18 Sep - 21 Sep	easyJet	direct
06 Sep - 08 Sep	easyJet	direct
10 Sep - 23 Sep	Wizz Air Malta
20 Sep - 04 Oct	easyJet
24 Sep - 01 Oct	easyJet	direct
30 Sep - 02 Oct	easyJet
30 Sep - 02 Oct	easyJet	direct
21 Sep - 05 Oct	easyJet
21 Sep - 05 Oct	easyJet	direct
20 Sep - 04 Oct	easyJet	direct

Also check the deals for one-way flights from Naples to Basel 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 Basel in September from 88€

Return flights