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

Return flights

21 Sep - 25 Sep	Turkish Airlines
02 Sep - 09 Sep	Air France
08 Sep - 22 Sep	Air France
07 Sep - 14 Sep	Air France
06 Sep - 14 Sep	KLM
06 Sep - 22 Sep	KLM
12 Sep - 16 Sep	Air France
07 Sep - 22 Sep	KLM
11 Sep - 16 Sep	Air France
07 Sep - 23 Sep	KLM
14 Sep - 02 Oct	Turkish Airlines
26 Sep - 03 Oct	Turkish Airlines
25 Sep - 03 Oct	Turkish Airlines
21 Sep - 15 Oct	Turkish Airlines
29 Sep - 03 Oct	Turkish Airlines
14 Sep - 01 Oct	Turkish Airlines
24 Sep - 01 Oct	Turkish Airlines
28 Sep - 03 Oct	Turkish Airlines
28 Sep - 13 Oct	Turkish Airlines
19 Sep - 12 Oct	Turkish Airlines

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

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 September from $594

Return flights