The calculated distance (air line) between Phayakkhaphum Phisai and Khon Kaen is approximately 69 miles respectively 110 kilometers.
By car or train, the actual journey to Khon Kaen is certainly longer, as only the direct route (as the crow flies) between Phayakkhaphum Phisai and Khon Kaen has been calculated here.
Air line (approximately)
110 kilometers
60 nautical miles