The calculated distance (air line) between Phrai Bueng and Ubon Ratchathani is approximately 47 miles respectively 75 kilometers.
By car or train, the actual journey to Ubon Ratchathani is certainly longer, as only the direct route (as the crow flies) between Phrai Bueng and Ubon Ratchathani has been calculated here.
Air line (approximately)
75 kilometers
41 nautical miles