The calculated distance (air line) between Saint-Ouen-l'Aumône and Marne La Vallée is approximately 28 miles respectively 45 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 Saint-Ouen-l'Aumône and Marne La Vallée has been calculated here.
Air line (approximately)
45 kilometers
24 nautical miles