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

Return flights

11 Sep - 21 Sep	Condor
04 Sep - 17 Sep	Condor
03 Sep - 24 Sep	KLM
03 Sep - 25 Sep	KLM
02 Sep - 24 Sep	KLM
09 Sep - 22 Sep	KLM
17 Sep - 25 Sep	Air France
10 Sep - 08 Oct	KLM
10 Sep - 01 Oct	KLM
17 Sep - 12 Oct	Air France
02 Sep - 02 Oct	KLM
17 Sep - 15 Oct	Air France
20 Sep - 04 Oct	KLM
08 Sep - 22 Sep	KLM
25 Sep - 14 Oct	Condor
13 Sep - 04 Oct	Air France
11 Sep - 18 Sep	Air France
12 Sep - 24 Sep	KLM
01 Sep - 01 Oct	Air France
01 Sep - 28 Oct	Air France

Also check the deals for one-way flights from Hamburg 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 Hamburg to Bangkok in September from $633

Return flights