The calculated distance (air line) between Oberndorf bei Salzburg and Wiener Neustadt is approximately 153 miles respectively 247 kilometers.
By car or train, the actual journey to Wiener Neustadt is certainly longer, as only the direct route (as the crow flies) between Oberndorf bei Salzburg and Wiener Neustadt has been calculated here.
Air line (approximately)
247 kilometers
133 nautical miles