The calculated distance (air line) between Pia and Aix-en-Provence is approximately 139 miles respectively 223 kilometers.
By car or train, the actual journey to Aix-en-Provence is certainly longer, as only the direct route (as the crow flies) between Pia and Aix-en-Provence has been calculated here.
Air line (approximately)
223 kilometers
120 nautical miles