AirHint found the following cheapest return flights from Duesseldorf (DUS) to Bangkok (DMK) in September 2025 (see full year).

Return flights

26 Sep - 06 Oct	AJet
16 Sep - 14 Oct	AJet
27 Sep - 12 Oct	AJet
14 Sep - 29 Sep	Pegasus Airlines
13 Sep - 27 Sep	AJet
29 Sep - 14 Oct	AJet
27 Sep - 04 Oct	AJet
15 Sep - 30 Sep	AJet
19 Sep - 12 Oct	AJet
10 Sep - 25 Sep	AJet
25 Sep - 04 Oct	AJet
24 Sep - 06 Oct	Pegasus Airlines
29 Sep - 09 Oct	AJet
08 Sep - 19 Sep	AJet
12 Sep - 21 Sep	Pegasus Airlines
08 Sep - 22 Sep	Etihad Airways
15 Sep - 21 Sep	Etihad Airways
02 Sep - 20 Sep	Etihad Airways
06 Sep - 14 Sep	Etihad Airways
22 Sep - 08 Oct	Etihad Airways

Also check the deals for one-way flights from Duesseldorf 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 Duesseldorf to Bangkok in September from 547€

Return flights