The calculated distance (air line) between San Tung Chung Hang and Hang Hau is approximately 21 miles respectively 34 kilometers.
By car or train, the actual journey to Hang Hau is certainly longer, as only the direct route (as the crow flies) between San Tung Chung Hang and Hang Hau has been calculated here.
Air line (approximately)
34 kilometers
18 nautical miles