The calculated distance (air line) between Duque de Caxias and São João del Rei is approximately 129 miles respectively 208 kilometers.
By car or train, the actual journey to São João del Rei is certainly longer, as only the direct route (as the crow flies) between Duque de Caxias and São João del Rei has been calculated here.
Air line (approximately)
208 kilometers
112 nautical miles