The calculated distance (air line) between San Tung Chung Hang and Laguna City is approximately 18 miles respectively 30 kilometers.
By car or train, the actual journey to Laguna City is certainly longer, as only the direct route (as the crow flies) between San Tung Chung Hang and Laguna City has been calculated here.
Air line (approximately)
30 kilometers
16 nautical miles