The calculated distance (air line) between Puruarán and Álvaro Obregón is approximately 152 miles respectively 245 kilometers.
By car or train, the actual journey to Álvaro Obregón is certainly longer, as only the direct route (as the crow flies) between Puruarán and Álvaro Obregón has been calculated here.
Air line (approximately)
245 kilometers
132 nautical miles