The calculated distance (air line) between Sham Shui Po and Tung Chung is approximately 14 miles respectively 23 kilometers.
By car or train, the actual journey to Tung Chung is certainly longer, as only the direct route (as the crow flies) between Sham Shui Po and Tung Chung has been calculated here.
Air line (approximately)
23 kilometers
12 nautical miles