The calculated distance (air line) between Şammā and Aţ Ţafīlah is approximately 120 miles respectively 193 kilometers.
By car or train, the actual journey to Aţ Ţafīlah is certainly longer, as only the direct route (as the crow flies) between Şammā and Aţ Ţafīlah has been calculated here.
Air line (approximately)
193 kilometers
104 nautical miles