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

Return flights

04 Sep - 09 Sep	Jetstar
04 Sep - 13 Sep	Jetstar
09 Sep - 11 Sep	Jetstar
11 Sep - 18 Sep	Jetstar
18 Sep - 21 Sep	Jetstar
05 Sep - 23 Oct	Jetstar
11 Sep - 20 Sep	Jetstar
11 Sep - 11 Sep	Jetstar
28 Sep - 12 Oct	Jetstar
18 Sep - 27 Sep	Jetstar
18 Sep - 26 Sep	Indonesia AirAsia
06 Sep - 26 Sep	Indonesia AirAsia
26 Sep - 24 Oct	Jetstar
30 Sep - 03 Oct	Jetstar
29 Sep - 09 Oct	Jetstar
30 Sep - 09 Oct	Jetstar
26 Sep - 11 Oct	Jetstar
18 Sep - 05 Oct	Jetstar
18 Sep - 06 Oct	Indonesia AirAsia
18 Sep - 03 Oct	Indonesia AirAsia

Also check the deals for one-way flights from Adelaide 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 Adelaide to Singapore in September from $402

Return flights