The calculated distance (air line) between Aix-en-Provence and Marseille 02 is approximately 17 miles respectively 27 kilometers.
By car or train, the actual journey to Marseille 02 is certainly longer, as only the direct route (as the crow flies) between Aix-en-Provence and Marseille 02 has been calculated here.
Air line (approximately)
27 kilometers
14 nautical miles