is it this ticket I can use it for return from CDG airport to Paris ? or this only for one single journey?
1 answer
Paris Visite 1-day 1-5 zone is good for unlimited rides anywhere on the Metro/RER/Transilien system, including between RER trains between CDG Airport & Paris. Cost is 25.25€.
A cheaper option is the Ticket Mobilis 1-5 zone, which is a one day ticket for 17.80€ and has the same coverage as Paris Visite 1-day 1-5 zone, except it doesn't cover Orly airport, but that shouldn't affect you.