The calculated distance (air line) between Ashmūn and Mashtūl as Sūq is approximately 24 miles respectively 39 kilometers.
By car or train, the actual journey to Mashtūl as Sūq is certainly longer, as only the direct route (as the crow flies) between Ashmūn and Mashtūl as Sūq has been calculated here.
Air line (approximately)
39 kilometers
21 nautical miles