The calculated distance (air line) between San Martín Jilotepeque and Malacatán is approximately 85 miles respectively 137 kilometers.
By car or train, the actual journey to Malacatán is certainly longer, as only the direct route (as the crow flies) between San Martín Jilotepeque and Malacatán has been calculated here.
Air line (approximately)
137 kilometers
74 nautical miles