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

Return flights

27 Aug - 03 Sep	Etihad Airways
27 Aug - 09 Sep	Finnair
28 Aug - 12 Sep	Finnair
17 Aug - 11 Sep	Air India
30 Aug - 09 Sep	Air India
23 Aug - 07 Sep	Air India
29 Aug - 06 Sep	Air India
31 Aug - 06 Sep	Air India
30 Aug - 14 Sep	Air India
30 Aug - 20 Sep	IndiGo
24 Aug - 27 Aug	IndiGo
25 Aug - 27 Aug	IndiGo
19 Aug - 26 Aug	IndiGo
20 Aug - 24 Aug	IndiGo
18 Aug - 24 Aug	IndiGo
19 Aug - 28 Aug	IndiGo
17 Aug - 28 Aug	IndiGo
06 Aug - 26 Aug	IndiGo
22 Aug - 24 Aug	IndiGo
06 Aug - 20 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 $607

Return flights