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 - 08 Sep	Jetstar
01 Sep - 08 Sep	Jetstar
11 Sep - 14 Sep	Jetstar
09 Sep - 17 Sep	Jetstar
08 Sep - 16 Sep	Jetstar
11 Sep - 23 Sep	Jetstar
03 Sep - 10 Sep	Jetstar
05 Sep - 20 Sep	Virgin Australia
11 Sep - 18 Sep	Jetstar
05 Sep - 23 Oct	Jetstar
29 Sep - 13 Oct	Jetstar
25 Sep - 01 Oct	Virgin Australia
18 Sep - 01 Oct	Indonesia AirAsia
27 Sep - 05 Oct	Virgin Australia
30 Sep - 20 Oct	Indonesia AirAsia
15 Sep - 01 Oct	Indonesia AirAsia
11 Sep - 01 Oct	Indonesia AirAsia
22 Sep - 01 Oct	Indonesia AirAsia
18 Sep - 05 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.

Book a cheap hotel in Singapore

Cheap car rent in Singapore

Cheapest return flights from Adelaide to Singapore in September from $420

Return flights