The calculated distance (air line) between Vidin and Veliko Tŭrnovo is approximately 151 miles respectively 243 kilometers.
By car or train, the actual journey to Veliko Tŭrnovo is certainly longer, as only the direct route (as the crow flies) between Vidin and Veliko Tŭrnovo has been calculated here.
Air line (approximately)
243 kilometers
131 nautical miles