The calculated distance (air line) between Aţ Ţafīlah and Sūf is approximately 103 miles respectively 166 kilometers.
By car or train, the actual journey to Sūf is certainly longer, as only the direct route (as the crow flies) between Aţ Ţafīlah and Sūf has been calculated here.
Air line (approximately)
166 kilometers
89 nautical miles