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