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

Return flights

11 Sep - 18 Sep	Scoot Tigerair
16 Sep - 20 Sep	Scoot Tigerair
16 Sep - 23 Sep	Scoot Tigerair
30 Sep - 02 Oct	Scoot Tigerair
05 Sep - 07 Sep	Thai VietJet Air
19 Sep - 23 Sep	Thai VietJet Air
12 Sep - 14 Sep	Thai VietJet Air
07 Sep - 10 Sep	Air China
22 Sep - 24 Sep	AirAsia X
12 Sep - 24 Sep	AirAsia X
17 Sep - 24 Sep	AirAsia X
22 Sep - 11 Oct	AirAsia X
26 Sep - 03 Oct	ANA
26 Sep - 15 Oct	AirAsia X
26 Sep - 11 Oct	AirAsia X
26 Sep - 14 Oct	AirAsia X
22 Sep - 09 Oct	AirAsia X
26 Sep - 09 Oct	AirAsia X
22 Sep - 08 Oct	AirAsia X
22 Sep - 01 Oct	AirAsia X

Also check the deals for one-way flights from Sapporo 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 Sapporo to Singapore in September from $339

Return flights