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

Return flights

16 Sep - 23 Sep	Air France
17 Sep - 08 Oct	KLM
24 Sep - 01 Oct	KLM
14 Sep - 12 Oct	Air France
16 Sep - 30 Sep	Air France
02 Sep - 09 Sep	Finnair
09 Sep - 10 Oct	Turkish Airlines
25 Sep - 16 Oct	KLM
09 Sep - 16 Sep	Eurowings
09 Sep - 05 Oct	Eurowings
20 Sep - 16 Oct	Air France
07 Sep - 28 Sep	Finnair
03 Sep - 20 Sep	Turkish Airlines
04 Sep - 25 Sep	Eurowings
05 Sep - 24 Sep	Eurowings
01 Sep - 07 Sep	Ryanair
15 Sep - 04 Oct	Eurowings

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 533€

Return flights