The calculated distance (air line) between Astrakhan and Verkhniy Baskunchak is approximately 144 miles respectively 231 kilometers.
By car or train, the actual journey to Verkhniy Baskunchak is certainly longer, as only the direct route (as the crow flies) between Astrakhan and Verkhniy Baskunchak has been calculated here.
Air line (approximately)
231 kilometers
125 nautical miles