The calculated distance (air line) between Pathum Thani and Nakhon Ratchasima is approximately 124 miles respectively 200 kilometers.
By car or train, the actual journey to Nakhon Ratchasima is certainly longer, as only the direct route (as the crow flies) between Pathum Thani and Nakhon Ratchasima has been calculated here.
Air line (approximately)
200 kilometers
108 nautical miles