The calculated distance (air line) between San Marcos and Santa Lucía Cotzumalguapa is approximately 67 miles respectively 108 kilometers.
By car or train, the actual journey to Santa Lucía Cotzumalguapa is certainly longer, as only the direct route (as the crow flies) between San Marcos and Santa Lucía Cotzumalguapa has been calculated here.
Air line (approximately)
108 kilometers
59 nautical miles