The calculated distance (air line) between Deutsch-Wagram and Perchtoldsdorf is approximately 19 miles respectively 30 kilometers.
By car or train, the actual journey to Perchtoldsdorf is certainly longer, as only the direct route (as the crow flies) between Deutsch-Wagram and Perchtoldsdorf has been calculated here.
Air line (approximately)
30 kilometers
16 nautical miles