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

Return flights

02 Dec - 16 Jan	Finnair
01 Dec - 08 Dec	Finnair
01 Dec - 16 Dec	Finnair
07 Dec - 17 Dec	Turkish Airlines
07 Dec - 16 Dec	Turkish Airlines
05 Dec - 15 Dec	Turkish Airlines
01 Dec - 06 Dec	Turkish Airlines
03 Dec - 20 Dec	Turkish Airlines
01 Dec - 07 Dec	Turkish Airlines
04 Dec - 14 Dec	Ryanair
06 Dec - 17 Dec	Ryanair
02 Dec - 02 Jan	Finnair
06 Dec - 10 Jan	Ryanair
09 Dec - 02 Jan	Finnair
28 Dec - 19 Jan	IndiGo
30 Dec - 11 Jan	Hainan Airlines
15 Dec - 10 Jan	Ryanair
30 Dec - 14 Jan	Hainan Airlines
29 Dec - 30 Jan	IndiGo
29 Dec - 11 Jan	IndiGo

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 $581

Return flights