The calculated distance (air line) between Guazacapán and Quetzaltenango is approximately 91 miles respectively 146 kilometers.
By car or train, the actual journey to Quetzaltenango is certainly longer, as only the direct route (as the crow flies) between Guazacapán and Quetzaltenango has been calculated here.
Air line (approximately)
146 kilometers
79 nautical miles