- Take the Orlyval shuttle to Antony station (10 min; included with RER B-Ticket)
- Change to RER B train towards Saint Rémy-lès-Chevreuse or Robinson and get off at Saint Michel Notre Dame
By Bus:
- OrlyBus to Denfert-Rochereau (30min-45 min, approximately 12€)
By Taxi:
- Approximately 35-40 minutes, 35-50€
There are also private shuttle services that can be booked in advance.