The calculated distance (air line) between Abū ‘Arīsh and Khamis Mushait is approximately 92 miles respectively 148 kilometers.
By car or train, the actual journey to Khamis Mushait is certainly longer, as only the direct route (as the crow flies) between Abū ‘Arīsh and Khamis Mushait has been calculated here.
Air line (approximately)
148 kilometers
80 nautical miles