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

Return flights

03 Sep - 05 Sep	British Airways	direct
27 Sep - 20 Oct	Lufthansa
29 Sep - 09 Oct	British Airways	direct
13 Sep - 17 Sep	Lufthansa
15 Sep - 24 Sep	British Airways	direct
09 Sep - 16 Sep	Lufthansa
09 Sep - 18 Sep	Lufthansa
27 Sep - 01 Oct	Lufthansa
02 Sep - 10 Sep	SWISS
10 Sep - 17 Sep	SWISS
10 Sep - 16 Sep	SWISS
14 Sep - 18 Sep	SWISS
10 Sep - 13 Sep	SWISS
17 Sep - 01 Oct	SWISS
24 Sep - 01 Oct	SWISS
21 Sep - 01 Oct	SWISS
18 Sep - 01 Oct	Lufthansa
27 Sep - 04 Oct	Lufthansa
27 Sep - 02 Oct	Lufthansa
22 Sep - 01 Oct	SWISS

Also check the deals for one-way flights from London to Naples 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 London to Naples in September from 160€

Return flights