The calculated distance (air line) between Bonchamp-lès-Laval and Le Havre is approximately 105 miles respectively 169 kilometers.
By car or train, the actual journey to Le Havre is certainly longer, as only the direct route (as the crow flies) between Bonchamp-lès-Laval and Le Havre has been calculated here.
Air line (approximately)
169 kilometers
91 nautical miles