The calculated distance (air line) between Château-Gontier and Marne La Vallée is approximately 169 miles respectively 272 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 Château-Gontier and Marne La Vallée has been calculated here.
Air line (approximately)
272 kilometers
147 nautical miles