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

Return flights

02 Sep - 17 Sep	Etihad Airways
07 Sep - 16 Sep	Etihad Airways
14 Sep - 21 Sep	Etihad Airways
07 Sep - 22 Sep	Etihad Airways
01 Sep - 16 Sep	Etihad Airways
02 Sep - 08 Sep	Etihad Airways
07 Sep - 15 Sep	Etihad Airways
24 Sep - 01 Oct	Etihad Airways
25 Sep - 08 Oct	Etihad Airways
03 Sep - 17 Sep	Etihad Airways
13 Sep - 20 Sep	Etihad Airways
03 Sep - 24 Sep	Etihad Airways
25 Sep - 05 Oct	Finnair
22 Sep - 07 Oct	Finnair
02 Sep - 03 Oct	Turkish Airlines
16 Sep - 31 Oct	Turkish Airlines
15 Sep - 08 Oct	Etihad Airways
17 Sep - 16 Oct	KLM
29 Sep - 11 Oct	Air India
28 Sep - 18 Oct	Air India

Also check the deals for one-way flights from Zurich 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 Zurich to Singapore in September from $589

Return flights