The calculated distance (air line) between Maisons-Laffitte and Marne La Vallée is approximately 24 miles respectively 39 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 Maisons-Laffitte and Marne La Vallée has been calculated here.
Air line (approximately)
39 kilometers
21 nautical miles