How to get to Charetres Cathedral

I am going to explain how to get to Chartres Cathedral . At first please board an airplane for Paris from Centrair . If you board airplane at 10:00 for Paris , you could arrived there 23:30 in Japanese time . It is 15:30 in French time . It takes about 13 hours and 30 minutes . When you get train about 1 hour from the Montparnasse station of Paris , you can see it soon . It takes about 1500 yen . You should buy ticket Air France Airlines which 900000 yen is better .