The calculated distance (air line) between San Rafael de Onoto and San Fernando de Apure is approximately 161 miles respectively 258 kilometers.
By car or train, the actual journey to San Fernando de Apure is certainly longer, as only the direct route (as the crow flies) between San Rafael de Onoto and San Fernando de Apure has been calculated here.
Air line (approximately)
258 kilometers
139 nautical miles