We are 5 people arriving in Paris. What is the cheapest way to get to the Paris City from CDG?
NC - Take the RERB from CDG airport (Direction: Saint-Remy-les-Chevreuse to Gare du Nord.
The fare will be 8.50 euro. You can purchase your tickets from a machine, but the machine only takes euro coins. There is a change machine near the ticket machine that changes 10 & 20 euro notes.
Tickets for the RER can also be purchased in a little office, just look for the long line and you've found it.
Where abouts are you traveling to in Paris ?
Here is a link to the Paris Metro Click here