The calculated distance (air line) between El Castillo and Álvaro Obregón is approximately 153 miles respectively 246 kilometers.
By car or train, the actual journey to Álvaro Obregón is certainly longer, as only the direct route (as the crow flies) between El Castillo and Álvaro Obregón has been calculated here.
Air line (approximately)
246 kilometers
133 nautical miles