I can't login to thank you for the information provided and your amazing site. I think i'm all sorted for my visit just one(or two!) question(s) to go as I have tried to reach the rapt contact/help to no avail :-((.
a. The manned ticket window opening hours on Thursdays at Orly 4
b. Whether I can buy a navigo decouverte week card in a machine. Thanx once more!
The Orlybus ticket window is supposed to stay open till 12:30 a.m. (until last bus).
You can't use ticket machines to buy a new Navigo card unfortunately. Navigo cards themselves are only supplied by ticket agents at ticket windows or ticket offices. And some ticket windows can run out of new blank cards and the only recourse is to try the next closest ticket window.
Thanks for the kind words about the site.