The calculated distance (air line) between Santiago Tílapa and Álvaro Obregón is approximately 18 miles respectively 30 kilometers.
By car or train, the actual journey to Álvaro Obregón is certainly longer, as only the direct route (as the crow flies) between Santiago Tílapa and Álvaro Obregón has been calculated here.
Air line (approximately)
30 kilometers
16 nautical miles