The calculated distance (air line) between Korydallós and Agía Paraskeví is approximately 10 miles respectively 17 kilometers.
By car or train, the actual journey to Agía Paraskeví is certainly longer, as only the direct route (as the crow flies) between Korydallós and Agía Paraskeví has been calculated here.
Air line (approximately)
17 kilometers
9 nautical miles