The calculated distance (air line) between Saddat al Hindīyah and Sadr City is approximately 48 miles respectively 77 kilometers.
By car or train, the actual journey to Sadr City is certainly longer, as only the direct route (as the crow flies) between Saddat al Hindīyah and Sadr City has been calculated here.
Air line (approximately)
77 kilometers
41 nautical miles