The calculated distance (air line) between San Antonio de los Baños and Pinar del Río is approximately 83 miles respectively 134 kilometers.
By car or train, the actual journey to Pinar del Río is certainly longer, as only the direct route (as the crow flies) between San Antonio de los Baños and Pinar del Río has been calculated here.
Air line (approximately)
134 kilometers
72 nautical miles