The calculated distance (air line) between Sankt Veit an der Glan and Klagenfurt am Wörthersee is approximately 10 miles respectively 16 kilometers.
By car or train, the actual journey to Klagenfurt am Wörthersee is certainly longer, as only the direct route (as the crow flies) between Sankt Veit an der Glan and Klagenfurt am Wörthersee has been calculated here.
Air line (approximately)
16 kilometers
9 nautical miles