The calculated distance (air line) between Šentilj v Slov. Goricah and Ljubljana is approximately 70 miles respectively 112 kilometers.
By car or train, the actual journey to Ljubljana is certainly longer, as only the direct route (as the crow flies) between Šentilj v Slov. Goricah and Ljubljana has been calculated here.
Air line (approximately)
112 kilometers
61 nautical miles