AirHint found the following cheapest return flights from Singapore (SIN) to Bandar Seri Begawan (BWN) in September 2025 (see full year).

Return flights

11 Sep - 23 Sep	AirAsia
18 Sep - 21 Sep	Singapore Airlines	direct
22 Sep - 25 Sep	AirAsia
11 Sep - 25 Sep	AirAsia
20 Sep - 23 Sep	AirAsia
22 Sep - 25 Sep	Royal Brunei	direct
27 Sep - 28 Sep	Royal Brunei	direct
20 Sep - 23 Sep	Royal Brunei	direct
10 Sep - 11 Sep	Royal Brunei	direct
03 Sep - 07 Sep	Royal Brunei	direct
22 Sep - 06 Oct	AirAsia
22 Sep - 10 Oct	AirAsia
20 Sep - 06 Oct	AirAsia
20 Sep - 10 Oct	AirAsia
22 Sep - 13 Oct	AirAsia
18 Sep - 06 Oct	AirAsia
21 Sep - 06 Oct	AirAsia
22 Sep - 05 Oct	AirAsia
21 Sep - 10 Oct	AirAsia
15 Sep - 06 Oct	AirAsia

Also check the deals for one-way flights from Singapore to Bandar Seri Begawan 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 Singapore to Bandar Seri Begawan in September from 222€

Return flights