The calculated distance (air line) between Lille and Aulnay-sous-Bois is approximately 120 miles respectively 193 kilometers.
By car or train, the actual journey to Aulnay-sous-Bois is certainly longer, as only the direct route (as the crow flies) between Lille and Aulnay-sous-Bois has been calculated here.
Air line (approximately)
193 kilometers
104 nautical miles