The calculated distance (air line) between Álvaro Obregón and Chilpancingo is approximately 127 miles respectively 204 kilometers.
By car or train, the actual journey to Chilpancingo is certainly longer, as only the direct route (as the crow flies) between Álvaro Obregón and Chilpancingo has been calculated here.
Air line (approximately)
204 kilometers
110 nautical miles