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

Return flights

26 Aug - 02 Sep	Air China
19 Aug - 29 Aug	Hainan Airlines
21 Aug - 28 Aug	Hainan Airlines
20 Aug - 27 Aug	Hainan Airlines
21 Aug - 25 Aug	Hainan Airlines
19 Aug - 26 Aug	Hainan Airlines
26 Aug - 02 Sep	Scoot	direct
22 Aug - 24 Aug	Hainan Airlines
23 Aug - 24 Aug	Hainan Airlines
27 Aug - 30 Aug	AirAsia X
29 Aug - 30 Aug	AirAsia X
25 Aug - 30 Aug	AirAsia X
27 Aug - 16 Sep	AirAsia X
27 Aug - 06 Sep	AirAsia X
29 Aug - 02 Sep	AirAsia X
25 Aug - 02 Sep	AirAsia X
27 Aug - 05 Sep	AirAsia X
27 Aug - 14 Sep	AirAsia X
29 Aug - 16 Sep	AirAsia X
29 Aug - 06 Sep	AirAsia X

Also check the deals for one-way flights from Hangzhou 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 Hangzhou to Singapore in August from 222€

Return flights