The calculated distance (air line) between Pasto and San Lorenzo de Esmeraldas is approximately 107 miles respectively 173 kilometers.
By car or train, the actual journey to San Lorenzo de Esmeraldas is certainly longer, as only the direct route (as the crow flies) between Pasto and San Lorenzo de Esmeraldas has been calculated here.
Air line (approximately)
173 kilometers
93 nautical miles