The calculated distance (air line) between Álvaro Obregón and Tehuacán is approximately 133 miles respectively 214 kilometers.
By car or train, the actual journey to Tehuacán is certainly longer, as only the direct route (as the crow flies) between Álvaro Obregón and Tehuacán has been calculated here.
Air line (approximately)
214 kilometers
116 nautical miles