By train, how long from Disneyland to get to the St. Lazare station?

[Ned Land]

...and how do I get there?

 

[Carrie_Cat]

45 minutes to an hour - You go from the MLV-Chessy RER station on RER A to Auber and then get out and walk to St Lazare (round 5/10) minutes depending which exit you take or follow the signs underground to the RER E which leaves from Haussman St Lazare and has an exit in the station.