The calculated distance (air line) between Coronel Marcelino Maridueña and Machala is approximately 81 miles respectively 131 kilometers.
By car or train, the actual journey to Machala is certainly longer, as only the direct route (as the crow flies) between Coronel Marcelino Maridueña and Machala has been calculated here.
Air line (approximately)
131 kilometers
70 nautical miles