The calculated distance (air line) between San Antonio de los Baños and La Habana Vieja is approximately 19 miles respectively 31 kilometers.
By car or train, the actual journey to La Habana Vieja is certainly longer, as only the direct route (as the crow flies) between San Antonio de los Baños and La Habana Vieja has been calculated here.
Air line (approximately)
31 kilometers
17 nautical miles