The calculated distance (air line) between Tsz Wan Shan and Tung Chung is approximately 17 miles respectively 27 kilometers.
By car or train, the actual journey to Tung Chung is certainly longer, as only the direct route (as the crow flies) between Tsz Wan Shan and Tung Chung has been calculated here.
Air line (approximately)
27 kilometers
15 nautical miles