The calculated distance (air line) between San Pedro Mártir and León de los Aldama is approximately 85 miles respectively 137 kilometers.
By car or train, the actual journey to León de los Aldama is certainly longer, as only the direct route (as the crow flies) between San Pedro Mártir and León de los Aldama has been calculated here.
Air line (approximately)
137 kilometers
74 nautical miles