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

Return flights

25 Aug - 10 Sep	Finnair
22 Aug - 09 Sep	Finnair
29 Aug - 28 Sep	Turkish Airlines
30 Aug - 29 Sep	Turkish Airlines
29 Aug - 14 Sep	Finnair
29 Aug - 12 Sep	Finnair
19 Aug - 04 Sep	Finnair
29 Aug - 13 Sep	Finnair
24 Aug - 02 Sep	Finnair
25 Aug - 02 Sep	Finnair
24 Aug - 31 Aug	Finnair
23 Aug - 27 Aug	IndiGo
16 Aug - 23 Aug	IndiGo
14 Aug - 21 Aug	IndiGo
23 Aug - 30 Aug	IndiGo
11 Aug - 23 Aug	IndiGo
13 Aug - 27 Aug	IndiGo
15 Aug - 30 Aug	IndiGo
10 Aug - 11 Aug	IndiGo
11 Aug - 17 Aug	IndiGo

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

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 August from $557

Return flights