What is the approximate train fare from Charled De Gaulle airport to Montmarte?

Question

We are going to Paris for 5 days. Do they have day passes for the trains? If so, how many Euros are they?

Answer 1

You will want to get the RER ticket. That is the fast train that gets you from the Airport into the city. I believe it was around 3 Euros for A ticket.
But you are going to be there for 5 days, if you are going to take the metro, get like a 3 day pass and if there is a 5 day pass, just get that, and you can use it for the bus and the metro. Or you can buy a Carne, which has 10 individual one way tickets. That costs 12 Euros.

Answer 2

Call up the train station authorities and enquire what is the fare from one destination to the other,