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

Return flights

27 Sep - 29 Sep	AirAsia
27 Sep - 14 Oct	AirAsia
25 Sep - 14 Oct	AirAsia
21 Sep - 29 Sep	AirAsia
21 Sep - 26 Sep	AirAsia
21 Sep - 03 Oct	AirAsia
21 Sep - 10 Oct	AirAsia
21 Sep - 08 Oct	AirAsia
25 Sep - 29 Sep	AirAsia
25 Sep - 27 Sep	AirAsia
21 Sep - 27 Sep	AirAsia
21 Sep - 30 Sep	AirAsia
27 Sep - 03 Oct	AirAsia
27 Sep - 13 Oct	AirAsia
27 Sep - 10 Oct	AirAsia
27 Sep - 08 Oct	AirAsia
25 Sep - 26 Sep	AirAsia
25 Sep - 03 Oct	AirAsia
25 Sep - 30 Sep	AirAsia
26 Sep - 30 Sep	Singapore Airlines	direct

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 228€

Return flights