The calculated distance (air line) between Chassieu and Aix-en-Provence is approximately 155 miles respectively 249 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 Chassieu and Aix-en-Provence has been calculated here.
Air line (approximately)
249 kilometers
135 nautical miles