Originally Posted by
norenewa
Thank you for the information. I will check into the ORLYBUS. I was leaning towards the train because I read that traffic can be pretty bad but perhaps I will take the Orlybus to the hotel. On the return, I may consider the train because I do not want to be caught in traffic. We all need to pack light!
I've never been to Orly, but I do not think it's a "straight shot" to D-R on the RER. I think you have to change trains somewhere (it IS a direct shot from CDG, though).