The calculated distance (air line) between Saint-Doulchard and Marne La Vallée is approximately 120 miles respectively 194 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-Doulchard and Marne La Vallée has been calculated here.
Air line (approximately)
194 kilometers
105 nautical miles