The calculated distance (air line) between Vaires-sur-Marne and Le Havre is approximately 122 miles respectively 196 kilometers.
By car or train, the actual journey to Le Havre is certainly longer, as only the direct route (as the crow flies) between Vaires-sur-Marne and Le Havre has been calculated here.
Air line (approximately)
196 kilometers
106 nautical miles