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

Return flights

14 Sep - 12 Oct	Air France
22 Sep - 30 Sep	Air France
09 Sep - 10 Oct	KLM
11 Sep - 05 Oct	Air France
27 Sep - 17 Oct	Air France
11 Sep - 24 Sep	Air France
02 Sep - 24 Sep	KLM
08 Sep - 23 Sep	Air France
29 Sep - 15 Oct	KLM
14 Sep - 02 Oct	Air France
08 Sep - 17 Sep	Air France
04 Sep - 26 Sep	Finnair
20 Sep - 12 Oct	Air France
08 Sep - 18 Sep	Eurowings
20 Sep - 10 Oct	Air France
08 Sep - 13 Sep	Eurowings
08 Sep - 20 Sep	Eurowings
06 Sep - 28 Sep	Finnair
12 Sep - 03 Oct	Turkish Airlines
27 Sep - 04 Oct	Etihad Airways

Also check the deals for one-way flights from Duesseldorf to Singapore 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 Singapore in September from $616

Return flights