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

Return flights

02 Sep - 17 Sep	SWISS
18 Sep - 29 Sep	SWISS
18 Sep - 28 Sep	SWISS
01 Sep - 16 Sep	SWISS
17 Sep - 25 Sep	SWISS
17 Sep - 24 Sep	SWISS
23 Sep - 30 Sep	SWISS
05 Sep - 15 Sep	SWISS
11 Sep - 17 Sep	SWISS
08 Sep - 15 Sep	SWISS
11 Sep - 12 Oct	SWISS
26 Sep - 11 Oct	SWISS
25 Sep - 02 Oct	KLM
28 Sep - 19 Oct	SWISS
28 Sep - 08 Oct	SWISS
28 Sep - 15 Oct	SWISS

Also check the deals for one-way flights from Naples to Bangkok 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.

Book a cheap hotel in Bangkok

Cheap car rent in Bangkok

Cheapest return flights from Naples to Bangkok in September from $562

Return flights