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

Return flights

04 Sep - 10 Sep	Finnair
16 Sep - 30 Sep	Finnair
01 Sep - 08 Sep	Finnair
11 Sep - 29 Sep	Finnair
08 Sep - 15 Sep	Finnair
01 Sep - 10 Sep	Finnair
15 Sep - 29 Sep	Finnair
07 Sep - 21 Sep	Finnair
08 Sep - 22 Sep	Finnair
18 Sep - 28 Sep	Finnair
22 Sep - 06 Oct	Finnair
23 Sep - 05 Oct	Finnair
23 Sep - 03 Oct	Finnair
22 Sep - 03 Oct	Finnair
09 Sep - 24 Oct	Finnair
08 Sep - 24 Oct	Finnair
09 Sep - 25 Oct	Finnair
19 Sep - 04 Oct	Finnair
29 Sep - 06 Oct	Finnair
19 Sep - 05 Oct	Finnair

Also check the deals for one-way flights from Brussels 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 Brussels to Singapore in September from 488€

Return flights