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

Return flights

05 Sep - 07 Sep	Hainan Airlines
19 Sep - 21 Sep	Hainan Airlines
10 Sep - 14 Sep	Hainan Airlines
13 Sep - 15 Sep	Hainan Airlines
18 Sep - 24 Sep	Singapore Airlines	direct
02 Sep - 09 Sep	AirAsia
07 Sep - 15 Sep	Hainan Airlines
02 Sep - 10 Sep	AirAsia
01 Sep - 09 Sep	Thai AirAsia
02 Sep - 08 Sep	AirAsia
14 Sep - 03 Oct	AirAsia
10 Sep - 01 Oct	Thai AirAsia
20 Sep - 03 Oct	Thai AirAsia
16 Sep - 03 Oct	Thai AirAsia
25 Sep - 15 Oct	Thai AirAsia
11 Sep - 01 Oct	AirAsia
25 Sep - 13 Oct	Thai AirAsia
14 Sep - 01 Oct	AirAsia
16 Sep - 01 Oct	Thai AirAsia
20 Sep - 01 Oct	Thai AirAsia

Also check the deals for one-way flights from Shenzhen 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 Shenzhen to Singapore in September from 193€

Return flights