The calculated distance (air line) between Concepción Chiquirichapa and Retalhuleu is approximately 22 miles respectively 36 kilometers.
By car or train, the actual journey to Retalhuleu is certainly longer, as only the direct route (as the crow flies) between Concepción Chiquirichapa and Retalhuleu has been calculated here.
Air line (approximately)
36 kilometers
19 nautical miles