The calculated distance (air line) between Chai Wari and Ubon Ratchathani is approximately 104 miles respectively 167 kilometers.
By car or train, the actual journey to Ubon Ratchathani is certainly longer, as only the direct route (as the crow flies) between Chai Wari and Ubon Ratchathani has been calculated here.
Air line (approximately)
167 kilometers
90 nautical miles