The calculated distance (air line) between Ubon Ratchathani and Suwannaphum is approximately 74 miles respectively 119 kilometers.
By car or train, the actual journey to Suwannaphum is certainly longer, as only the direct route (as the crow flies) between Ubon Ratchathani and Suwannaphum has been calculated here.
Air line (approximately)
119 kilometers
64 nautical miles