The calculated distance (air line) between San Juan de la Vega and San Luis Potosí is approximately 106 miles respectively 171 kilometers.
By car or train, the actual journey to San Luis Potosí is certainly longer, as only the direct route (as the crow flies) between San Juan de la Vega and San Luis Potosí has been calculated here.
Air line (approximately)
171 kilometers
92 nautical miles