The calculated distance (air line) between Whampoa and San Tung Chung Hang is approximately 16 miles respectively 26 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 Whampoa and San Tung Chung Hang has been calculated here.
Air line (approximately)
26 kilometers
14 nautical miles