AirHint found the following cheapest return flights from Rome (ROM) to Bangkok (BKK) in September 2026 (see full year).

Return flights

08 Sep - 16 Sep	SWISS
17 Sep - 27 Sep	SWISS
01 Sep - 15 Sep	SWISS
19 Sep - 26 Sep	SWISS
08 Sep - 22 Sep	SWISS
05 Sep - 20 Sep	SWISS
07 Sep - 14 Sep	SWISS
07 Sep - 21 Sep	SWISS
03 Sep - 14 Sep	SWISS
14 Sep - 27 Sep	SWISS
18 Sep - 03 Oct	SWISS
17 Sep - 02 Oct	SWISS
22 Sep - 02 Oct	SWISS
30 Sep - 14 Oct	SWISS
28 Sep - 05 Oct	Etihad Airways
17 Sep - 02 Oct	ITA Airways	direct
22 Sep - 02 Oct	ITA Airways	direct

Also check the deals for one-way flights from Rome 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 Rome to Bangkok in September from 478€

Return flights