please advise Sat May 18
Paris Louvre to Versailles Chateau approx 8am
Return Versailles to Paris Louvre approx 8.30pm
Recommendation: single-use RER tickets, bought from a RER station ticket window from Musee d'Orsay RER C station to Versailles Rive-Gauche. Frequency departing Musee d'Orsay is every 7-8 minutes. 15 min walk between Louvre Metro station and Musee d'Orsay saves two additional Metro transfers which complicates the itinerary.
Return train frequency will be around 10-12 minutes.