The calculated distance (air line) between Dera Ghazi Khan and Haveli Lakha is approximately 184 miles respectively 297 kilometers.
By car or train, the actual journey to Haveli Lakha is certainly longer, as only the direct route (as the crow flies) between Dera Ghazi Khan and Haveli Lakha has been calculated here.
Air line (approximately)
297 kilometers
160 nautical miles