The calculated distance (air line) between Sidi Khaled and Ghardaïa is approximately 151 miles respectively 244 kilometers.
By car or train, the actual journey to Ghardaïa is certainly longer, as only the direct route (as the crow flies) between Sidi Khaled and Ghardaïa has been calculated here.
Air line (approximately)
244 kilometers
131 nautical miles