The calculated distance (air line) between Donggongon and Bandar Seri Begawan is approximately 106 miles respectively 171 kilometers.
By car or train, the actual journey to Bandar Seri Begawan is certainly longer, as only the direct route (as the crow flies) between Donggongon and Bandar Seri Begawan has been calculated here.
Air line (approximately)
171 kilometers
92 nautical miles