The calculated distance (air line) between Tai Shui Hang and Tung Chung is approximately 20 miles respectively 32 kilometers.
By car or train, the actual journey to Tung Chung is certainly longer, as only the direct route (as the crow flies) between Tai Shui Hang and Tung Chung has been calculated here.
Air line (approximately)
32 kilometers
17 nautical miles