The calculated distance (air line) between Tápiószentmárton and Szombathely is approximately 147 miles respectively 236 kilometers.
By car or train, the actual journey to Szombathely is certainly longer, as only the direct route (as the crow flies) between Tápiószentmárton and Szombathely has been calculated here.
Air line (approximately)
236 kilometers
127 nautical miles