The calculated distance (air line) between Oberndorf bei Salzburg and Brigittenau is approximately 159 miles respectively 257 kilometers.
By car or train, the actual journey to Brigittenau is certainly longer, as only the direct route (as the crow flies) between Oberndorf bei Salzburg and Brigittenau has been calculated here.
Air line (approximately)
257 kilometers
138 nautical miles