The calculated distance (air line) between Butterfly and San Tung Chung Hang is approximately 7 miles respectively 11 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 Butterfly and San Tung Chung Hang has been calculated here.
Air line (approximately)
11 kilometers
6 nautical miles