The calculated distance (air line) between Sarria and Monforte de Lemos is approximately 19 miles respectively 30 kilometers.
By car or train, the actual journey to Monforte de Lemos is certainly longer, as only the direct route (as the crow flies) between Sarria and Monforte de Lemos has been calculated here.
Air line (approximately)
30 kilometers
16 nautical miles