The calculated distance (air line) between Ban Phai and Ubon Ratchathani is approximately 152 miles respectively 244 kilometers.
By car or train, the actual journey to Ubon Ratchathani is certainly longer, as only the direct route (as the crow flies) between Ban Phai and Ubon Ratchathani has been calculated here.
Air line (approximately)
244 kilometers
132 nautical miles