The calculated distance (air line) between Wādī as Sīr and Aydūn is approximately 38 miles respectively 61 kilometers.
By car or train, the actual journey to Aydūn is certainly longer, as only the direct route (as the crow flies) between Wādī as Sīr and Aydūn has been calculated here.
Air line (approximately)
61 kilometers
33 nautical miles