The calculated distance (air line) between Dammarie-les-Lys and Le Havre is approximately 134 miles respectively 215 kilometers.
By car or train, the actual journey to Le Havre is certainly longer, as only the direct route (as the crow flies) between Dammarie-les-Lys and Le Havre has been calculated here.
Air line (approximately)
215 kilometers
116 nautical miles