The calculated distance (air line) between San Cristóbal Cucho and Retalhuleu is approximately 26 miles respectively 43 kilometers.
By car or train, the actual journey to Retalhuleu is certainly longer, as only the direct route (as the crow flies) between San Cristóbal Cucho and Retalhuleu has been calculated here.
Air line (approximately)
43 kilometers
23 nautical miles