The calculated distance (air line) between Meulan-en-Yvelines and Marne La Vallée is approximately 35 miles respectively 57 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 Meulan-en-Yvelines and Marne La Vallée has been calculated here.
Air line (approximately)
57 kilometers
31 nautical miles