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

Return flights

14 Oct - 21 Oct	Jetstar
26 Oct - 13 Nov	Jetstar
24 Oct - 27 Oct	Jetstar
07 Oct - 14 Oct	Jetstar
31 Oct - 13 Nov	Jetstar
11 Oct - 24 Oct	Jetstar
24 Oct - 13 Nov	Jetstar
15 Oct - 19 Oct	Jetstar
24 Oct - 13 Nov	Singapore Airlines	direct
25 Oct - 26 Nov	Indonesia AirAsia
14 Oct - 03 Nov	Indonesia AirAsia
25 Oct - 26 Nov	Singapore Airlines	direct
25 Oct - 09 Nov	Indonesia AirAsia
16 Oct - 31 Oct	Jetstar
20 Oct - 31 Oct	Jetstar
30 Oct - 08 Nov	Indonesia AirAsia
25 Oct - 12 Nov	Indonesia AirAsia
14 Oct - 31 Oct	Indonesia AirAsia
06 Oct - 10 Oct	Jetstar
25 Oct - 31 Oct	Indonesia AirAsia

Also check the deals for one-way flights from Adelaide to Singapore in October.

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 October from $453

Return flights