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

Return flights

10 Sep - 15 Oct	KLM
03 Sep - 06 Oct	Air France
10 Sep - 20 Oct	KLM
14 Sep - 02 Oct	Air France
18 Sep - 01 Oct	KLM
10 Sep - 25 Sep	KLM
03 Sep - 18 Sep	Air France
04 Sep - 18 Sep	KLM
05 Sep - 18 Sep	KLM
11 Sep - 25 Sep	KLM
10 Sep - 23 Sep	KLM
16 Sep - 08 Oct	KLM
09 Sep - 24 Sep	Air France
10 Sep - 17 Sep	KLM
04 Sep - 17 Sep	KLM
05 Sep - 17 Sep	KLM
21 Sep - 13 Oct	Air France
15 Sep - 02 Oct	KLM
19 Sep - 10 Oct	KLM
29 Sep - 24 Oct	ITA Airways

Also check the deals for one-way flights from Milan 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.

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Cheapest return flights from Milan to Bangkok in September from 514€

Return flights