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

Return flights

30 Dec - 18 Jan	Turkish Airlines
01 Dec - 06 Dec	KLM
01 Dec - 14 Dec	SWISS
11 Dec - 14 Dec	Pegasus Airlines
11 Dec - 18 Dec	Pegasus Airlines
16 Dec - 29 Dec	Ryanair
11 Dec - 31 Dec	Pegasus Airlines
12 Dec - 31 Dec	Ryanair
13 Dec - 20 Dec	Ryanair
29 Dec - 08 Jan	Aer Lingus
12 Dec - 03 Jan	Ryanair
16 Dec - 04 Jan	Ryanair
20 Dec - 29 Dec	Ryanair
30 Dec - 06 Jan	Ryanair
29 Dec - 05 Jan	Aer Lingus
13 Dec - 03 Jan	Ryanair
28 Dec - 04 Jan	IndiGo
15 Dec - 10 Jan	Ryanair
20 Dec - 10 Jan	Ryanair
21 Dec - 26 Dec	Aer Lingus

Also check the deals for one-way flights from Dublin to Singapore in December.

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 December from $615

Return flights