The calculated distance (air line) between Sankt Veit an der Glan and Floridsdorf is approximately 140 miles respectively 225 kilometers.
By car or train, the actual journey to Floridsdorf is certainly longer, as only the direct route (as the crow flies) between Sankt Veit an der Glan and Floridsdorf has been calculated here.
Air line (approximately)
225 kilometers
121 nautical miles