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

Return flights

22 Oct - 07 Nov	Air France
21 Oct - 28 Oct	Finnair
20 Oct - 29 Oct	Finnair
21 Oct - 27 Oct	Finnair
08 Oct - 22 Oct	Finnair
16 Oct - 20 Oct	Finnair
04 Oct - 14 Oct	British Airways
04 Oct - 16 Oct	British Airways
06 Oct - 13 Oct	Finnair
21 Oct - 12 Nov	Finnair
26 Oct - 08 Nov	Finnair
08 Oct - 14 Oct	Finnair
15 Oct - 29 Oct	Aer Lingus
21 Oct - 06 Nov	Finnair
21 Oct - 04 Nov	Finnair
31 Oct - 14 Nov	Finnair
24 Oct - 06 Nov	Ryanair
13 Oct - 09 Nov	Lufthansa
24 Oct - 08 Nov	Ryanair
23 Oct - 02 Nov	Ryanair

Also check the deals for one-way flights from Dublin 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 Dublin to Singapore in October from $549

Return flights