The calculated distance (air line) between Les Pavillons-sous-Bois and Le Havre is approximately 116 miles respectively 186 kilometers.
By car or train, the actual journey to Le Havre is certainly longer, as only the direct route (as the crow flies) between Les Pavillons-sous-Bois and Le Havre has been calculated here.
Air line (approximately)
186 kilometers
100 nautical miles