The calculated distance (air line) between Puruándiro and Álvaro Obregón is approximately 159 miles respectively 255 kilometers.
By car or train, the actual journey to Álvaro Obregón is certainly longer, as only the direct route (as the crow flies) between Puruándiro and Álvaro Obregón has been calculated here.
Air line (approximately)
255 kilometers
138 nautical miles