The calculated distance (air line) between Ceylanpınar and Diyarbakır is approximately 74 miles respectively 120 kilometers.
By car or train, the actual journey to Diyarbakır is certainly longer, as only the direct route (as the crow flies) between Ceylanpınar and Diyarbakır has been calculated here.
Air line (approximately)
120 kilometers
64 nautical miles