The calculated distance (air line) between Monte Blanco and Álvaro Obregón is approximately 145 miles respectively 234 kilometers.
By car or train, the actual journey to Álvaro Obregón is certainly longer, as only the direct route (as the crow flies) between Monte Blanco and Álvaro Obregón has been calculated here.
Air line (approximately)
234 kilometers
126 nautical miles