The calculated distance (air line) between Montigny-lès-Cormeilles and Marne La Vallée is approximately 22 miles respectively 36 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 Montigny-lès-Cormeilles and Marne La Vallée has been calculated here.
Air line (approximately)
36 kilometers
20 nautical miles