The calculated distance (air line) between Villefontaine and Aix-en-Provence is approximately 145 miles respectively 233 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 Villefontaine and Aix-en-Provence has been calculated here.
Air line (approximately)
233 kilometers
126 nautical miles