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

Return flights

28 Aug - 06 Sep	Scoot Tigerair	direct
23 Aug - 27 Aug	Sichuan Airlines
17 Aug - 21 Aug	Xiamen Airlines
18 Aug - 22 Aug	Xiamen Airlines
02 Aug - 09 Aug	Hainan Airlines
12 Aug - 17 Aug	Hainan Airlines
01 Aug - 09 Aug	Hainan Airlines
01 Aug - 03 Aug	Hainan Airlines
02 Aug - 22 Aug	Hainan Airlines
02 Aug - 23 Aug	Hainan Airlines
07 Aug - 14 Aug	Hainan Airlines
20 Aug - 04 Sep	AirAsia X
20 Aug - 07 Sep	AirAsia X
20 Aug - 09 Sep	AirAsia X
25 Aug - 04 Sep	AirAsia X
22 Aug - 04 Sep	AirAsia X
25 Aug - 07 Sep	AirAsia X
22 Aug - 07 Sep	AirAsia X
20 Aug - 06 Sep	AirAsia X
25 Aug - 09 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 $225

Return flights