The calculated distance (air line) between Tiszavasvári and Nyíregyháza is approximately 17 miles respectively 27 kilometers.
By car or train, the actual journey to Nyíregyháza is certainly longer, as only the direct route (as the crow flies) between Tiszavasvári and Nyíregyháza has been calculated here.
Air line (approximately)
27 kilometers
15 nautical miles