AirHint found the following cheapest return flights from Sydney (SYD) to Dublin (DUB) in October 2025 (see full year).

Return flights

28 Oct - 16 Nov	Scoot
22 Oct - 29 Oct	Scoot
28 Oct - 04 Nov	Air China
23 Oct - 02 Nov	Air China
26 Oct - 02 Nov	Scoot
12 Oct - 20 Oct	Scoot
13 Oct - 20 Oct	Scoot
22 Oct - 27 Oct	Scoot
15 Oct - 29 Oct	Scoot
31 Oct - 14 Nov	Scoot
21 Oct - 12 Nov	Sichuan Airlines
12 Oct - 19 Oct	China Southern
22 Oct - 12 Nov	VietJet Air
28 Oct - 13 Nov	Scoot
21 Oct - 28 Oct	Sichuan Airlines
16 Oct - 23 Oct	China Southern
29 Oct - 05 Nov	VietJet Air
29 Oct - 10 Nov	VietJet Air
21 Oct - 27 Oct	Sichuan Airlines
14 Oct - 21 Oct	Turkish Airlines

Also check the deals for one-way flights from Sydney to Dublin 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 Sydney to Dublin in October from $935

Return flights