The calculated distance (air line) between Aytos and Veliko Tŭrnovo is approximately 86 miles respectively 139 kilometers.
By car or train, the actual journey to Veliko Tŭrnovo is certainly longer, as only the direct route (as the crow flies) between Aytos and Veliko Tŭrnovo has been calculated here.
Air line (approximately)
139 kilometers
75 nautical miles