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

Return flights

26 Sep - 30 Sep	ANA
18 Sep - 20 Sep	ANA
19 Sep - 21 Sep	ANA
26 Sep - 04 Oct	ANA
24 Sep - 01 Oct	ANA
10 Sep - 13 Sep	ANA
17 Sep - 20 Sep	ANA
10 Sep - 14 Sep	ANA
23 Sep - 30 Sep	ANA
09 Sep - 11 Sep	ANA
09 Sep - 12 Sep	ANA
17 Sep - 21 Sep	ANA
19 Sep - 02 Oct	ANA
27 Sep - 01 Oct	ANA
29 Sep - 03 Oct	Japan Airlines
28 Sep - 03 Oct	Japan Airlines

Also check the deals for one-way flights from Osaka 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 Osaka to Singapore in September from $566

Return flights