The calculated distance (air line) between Tikrīt and Nāḩīyat Saddat al Hindīyah is approximately 136 miles respectively 218 kilometers.
By car or train, the actual journey to Nāḩīyat Saddat al Hindīyah is certainly longer, as only the direct route (as the crow flies) between Tikrīt and Nāḩīyat Saddat al Hindīyah has been calculated here.
Air line (approximately)
218 kilometers
118 nautical miles