The calculated distance (air line) between Velike Lašče and Ajdovščina is approximately 35 miles respectively 57 kilometers.
By car or train, the actual journey to Ajdovščina is certainly longer, as only the direct route (as the crow flies) between Velike Lašče and Ajdovščina has been calculated here.
Air line (approximately)
57 kilometers
31 nautical miles