The calculated distance (air line) between Sosúa and Concepción de La Vega is approximately 37 miles respectively 59 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 Sosúa and Concepción de La Vega has been calculated here.
Air line (approximately)
59 kilometers
32 nautical miles