The calculated distance (air line) between Rostov-na-Donu and Sal’sk is approximately 101 miles respectively 162 kilometers.
By car or train, the actual journey to Sal’sk is certainly longer, as only the direct route (as the crow flies) between Rostov-na-Donu and Sal’sk has been calculated here.
Air line (approximately)
162 kilometers
87 nautical miles