The calculated distance (air line) between Juvisy-sur-Orge and Le Havre is approximately 117 miles respectively 189 kilometers.
By car or train, the actual journey to Le Havre is certainly longer, as only the direct route (as the crow flies) between Juvisy-sur-Orge and Le Havre has been calculated here.
Air line (approximately)
189 kilometers
102 nautical miles