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

Return flights

31 Aug - 06 Sep	Air India
23 Aug - 06 Sep	Air India
29 Aug - 13 Sep	Air India
31 Aug - 16 Sep	Etihad Airways
26 Aug - 02 Sep	Etihad Airways
28 Aug - 09 Sep	Etihad Airways
25 Aug - 09 Sep	Etihad Airways
31 Aug - 14 Sep	Air India
31 Aug - 15 Sep	Etihad Airways
25 Aug - 05 Sep	Air India
10 Aug - 31 Aug	Air India
21 Aug - 26 Aug	Etihad Airways
11 Aug - 18 Aug	Air India
21 Aug - 27 Aug	Etihad Airways
19 Aug - 27 Aug	Pegasus Airlines
20 Aug - 31 Aug	Air India
22 Aug - 27 Aug	AJet
19 Aug - 26 Aug	IndiGo
29 Aug - 31 Aug	Air India
25 Aug - 27 Aug	IndiGo

Also check the deals for one-way flights from Zurich to Singapore in August.

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 August from 490€

Return flights