The calculated distance (air line) between Lille and Champigny-sur-Marne is approximately 128 miles respectively 206 kilometers.
By car or train, the actual journey to Champigny-sur-Marne is certainly longer, as only the direct route (as the crow flies) between Lille and Champigny-sur-Marne has been calculated here.
Air line (approximately)
206 kilometers
111 nautical miles