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

Return flights

23 Sep - 07 Oct	KLM
22 Sep - 08 Oct	KLM
10 Sep - 01 Oct	KLM
09 Sep - 10 Oct	KLM
09 Sep - 24 Oct	KLM
08 Sep - 25 Sep	KLM
01 Sep - 22 Sep	Pegasus Airlines
08 Sep - 29 Sep	KLM
03 Sep - 21 Sep	Turkish Airlines
22 Sep - 29 Sep	KLM
23 Sep - 29 Sep	KLM
07 Sep - 25 Sep	KLM
22 Sep - 04 Oct	KLM
24 Sep - 15 Oct	KLM
03 Sep - 02 Oct	KLM
20 Sep - 04 Oct	Pegasus Airlines
08 Sep - 15 Sep	AJet
19 Sep - 02 Oct	KLM
19 Sep - 28 Sep	KLM
01 Sep - 15 Sep	Pegasus Airlines

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 548€

Return flights