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

Return flights

01 Sep - 08 Sep	Jetstar
09 Sep - 12 Sep	Jetstar
07 Sep - 10 Sep	Jetstar
07 Sep - 15 Sep	Jetstar
11 Sep - 12 Sep	Indonesia AirAsia
06 Sep - 10 Sep	Indonesia AirAsia
06 Sep - 12 Sep	Indonesia AirAsia
01 Sep - 26 Sep	Jetstar
06 Sep - 07 Sep	Indonesia AirAsia
16 Sep - 20 Sep	Jetstar
29 Sep - 12 Oct	Jetstar
26 Sep - 09 Oct	Jetstar
29 Sep - 10 Oct	Jetstar
27 Sep - 10 Oct	Jetstar
28 Sep - 10 Oct	Jetstar
22 Sep - 05 Oct	Jetstar
27 Sep - 09 Oct	Jetstar
28 Sep - 09 Oct	Jetstar
17 Sep - 05 Oct	Jetstar
21 Sep - 01 Oct	Qantas

Also check the deals for one-way flights from Cairns 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 Cairns to Singapore in September from 402€

Return flights