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

Return flights

31 Dec - 07 Jan	Singapore Airlines	direct
31 Dec - 04 Jan	Singapore Airlines	direct
05 Dec - 08 Dec	Royal Brunei	direct
19 Dec - 24 Dec	Royal Brunei	direct
31 Dec - 09 Jan	AirAsia
01 Dec - 16 Dec	AirAsia
24 Dec - 09 Jan	AirAsia
01 Dec - 08 Dec	AirAsia
01 Dec - 02 Dec	AirAsia
24 Dec - 07 Jan	AirAsia
25 Dec - 09 Jan	AirAsia
25 Dec - 07 Jan	AirAsia
05 Dec - 16 Dec	AirAsia
01 Dec - 10 Dec	AirAsia
01 Dec - 11 Dec	AirAsia
01 Dec - 04 Dec	AirAsia
01 Dec - 18 Dec	AirAsia
17 Dec - 07 Jan	AirAsia
24 Dec - 04 Jan	AirAsia
25 Dec - 04 Jan	AirAsia

Also check the deals for one-way flights from Singapore to Bandar Seri Begawan in December.

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 December from 247€

Return flights