The calculated distance (air line) between Mosonmagyaróvár and Szeged is approximately 176 miles respectively 282 kilometers.
By car or train, the actual journey to Szeged is certainly longer, as only the direct route (as the crow flies) between Mosonmagyaróvár and Szeged has been calculated here.
Air line (approximately)
282 kilometers
152 nautical miles