The calculated distance (air line) between Kisra - Sume'a and Nazareth is approximately 19 miles respectively 30 kilometers.
By car or train, the actual journey to Nazareth is certainly longer, as only the direct route (as the crow flies) between Kisra - Sume'a and Nazareth has been calculated here.
Air line (approximately)
30 kilometers
16 nautical miles