The calculated distance (air line) between Miklavž na Dravskem Polju and Sežana is approximately 103 miles respectively 166 kilometers.
By car or train, the actual journey to Sežana is certainly longer, as only the direct route (as the crow flies) between Miklavž na Dravskem Polju and Sežana has been calculated here.
Air line (approximately)
166 kilometers
90 nautical miles