The calculated distance (air line) between Puerto Plata and Concepción de La Vega is approximately 41 miles respectively 66 kilometers.
By car or train, the actual journey to Concepción de La Vega is certainly longer, as only the direct route (as the crow flies) between Puerto Plata and Concepción de La Vega has been calculated here.
Air line (approximately)
66 kilometers
35 nautical miles