The calculated distance (air line) between Burgas and Veliko Tŭrnovo is approximately 101 miles respectively 163 kilometers.
By car or train, the actual journey to Veliko Tŭrnovo is certainly longer, as only the direct route (as the crow flies) between Burgas and Veliko Tŭrnovo has been calculated here.
Air line (approximately)
163 kilometers
88 nautical miles