The calculated distance (air line) between Monforte de Lemos and Caldas de Reis is approximately 58 miles respectively 93 kilometers.
By car or train, the actual journey to Caldas de Reis is certainly longer, as only the direct route (as the crow flies) between Monforte de Lemos and Caldas de Reis has been calculated here.
Air line (approximately)
93 kilometers
50 nautical miles