The calculated distance (air line) between Homs and ‘Ayn al ‘Arab is approximately 175 miles respectively 282 kilometers.
By car or train, the actual journey to ‘Ayn al ‘Arab is certainly longer, as only the direct route (as the crow flies) between Homs and ‘Ayn al ‘Arab has been calculated here.
Air line (approximately)
282 kilometers
152 nautical miles