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

Return flights

28 Sep - 03 Oct	Scoot
26 Sep - 02 Oct	Scoot	direct
25 Sep - 02 Oct	Scoot	direct
28 Sep - 02 Oct	Scoot
22 Sep - 30 Sep	Hainan Airlines
08 Sep - 15 Sep	Scoot	direct
22 Sep - 24 Sep	Scoot	direct
18 Sep - 26 Sep	Scoot	direct
22 Sep - 25 Sep	Scoot	direct
09 Sep - 16 Sep	Scoot	direct
18 Sep - 23 Sep	Scoot	direct
22 Sep - 26 Sep	Scoot	direct
18 Sep - 22 Sep	Scoot	direct
15 Sep - 23 Sep	Hainan Airlines
26 Sep - 01 Oct	Scoot	direct
25 Sep - 03 Oct	Scoot	direct
27 Sep - 01 Oct	Scoot
27 Sep - 04 Oct	AirAsia
29 Sep - 03 Oct	Scoot
26 Sep - 03 Oct	Scoot

Also check the deals for one-way flights from Singapore to Osaka 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 Singapore to Osaka in September from $266

Return flights