The calculated distance (air line) between Neiva and San José del Guaviare is approximately 184 miles respectively 295 kilometers.
By car or train, the actual journey to San José del Guaviare is certainly longer, as only the direct route (as the crow flies) between Neiva and San José del Guaviare has been calculated here.
Air line (approximately)
295 kilometers
159 nautical miles