The calculated distance (air line) between Montivilliers and Marne La Vallée is approximately 121 miles respectively 195 kilometers.
By car or train, the actual journey to Marne La Vallée is certainly longer, as only the direct route (as the crow flies) between Montivilliers and Marne La Vallée has been calculated here.
Air line (approximately)
195 kilometers
105 nautical miles