The calculated distance (air line) between Seria and Bandar Seri Begawan is approximately 47 miles respectively 75 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 Seria and Bandar Seri Begawan has been calculated here.
Air line (approximately)
75 kilometers
41 nautical miles