The calculated distance (air line) between Villeneuve-lès-Avignon and Marseille is approximately 55 miles respectively 88 kilometers.
By car or train, the actual journey to Marseille is certainly longer, as only the direct route (as the crow flies) between Villeneuve-lès-Avignon and Marseille has been calculated here.
Air line (approximately)
88 kilometers
48 nautical miles