The calculated distance (air line) between Bonneuil-sur-Marne and Le Havre is approximately 118 miles respectively 190 kilometers.
By car or train, the actual journey to Le Havre is certainly longer, as only the direct route (as the crow flies) between Bonneuil-sur-Marne and Le Havre has been calculated here.
Air line (approximately)
190 kilometers
103 nautical miles