To get from Orly airport (Aéroport d'Orly) to Roissy Charles de Gaulle (CDG) Airport can be relatively straightforward. The best options in our opinion are the direct Air France coach or the OrlyVal/RER train combination. The other options are listed below.
Air France service 'Les Cars', which are actually very comfortable coaches are a good option and you do not need to be an Air France customer to use the service. The benefit of using the coach is that it is direct and your luggage is put on/taken off the coach by Air France staff.
The RER line B train & OrlyVAL shuttle train option means changing at 'Antony' station and carrying and minding your own luggage plus you still have to make your way from the train stations in the airport to your terminal..
The Orlybus means carrying your luggage with you on the bus and then taking the RER train from Denfert-Rochereau station.
Taxis are available if money is no problem but for the average traveller one of the options above would be better.This also applies to the shuttle services which allow you to keep the price down by sharing with fellow travellers or privately for a group.
For more detail on your options click on logo or name above.