The calculated distance (air line) between L'Isle-sur-la-Sorgue and Aix-en-Provence is approximately 34 miles respectively 54 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 L'Isle-sur-la-Sorgue and Aix-en-Provence has been calculated here.
Air line (approximately)
54 kilometers
29 nautical miles