The calculated distance (air line) between Sant Julià de Lòria and Vilaseca is approximately 48 miles respectively 77 kilometers.
By car or train, the actual journey to Vilaseca is certainly longer, as only the direct route (as the crow flies) between Sant Julià de Lòria and Vilaseca has been calculated here.
Air line (approximately)
77 kilometers
42 nautical miles