The calculated distance (air line) between Korneuburg and Bruck an der Leitha is approximately 30 miles respectively 49 kilometers.
By car or train, the actual journey to Bruck an der Leitha is certainly longer, as only the direct route (as the crow flies) between Korneuburg and Bruck an der Leitha has been calculated here.
Air line (approximately)
49 kilometers
26 nautical miles