The Orlybus is a shuttle service connecting all terminals at Orly airport (1,2,3 & 4) to Paris via the RER and Metro stations at Denfert Rochereau. The journey time is 30 minutes on average.
They leave every 13 to 20 minutes to get to Paris. The buses operate from 6:00 am until after 11:45 pm seven days per week. The service is operated by the transport company RATP. The buses leave from pier number 5 Orly 4 (close to door 47d)
You can buy your orlybus tickets( € 9.50 ) from the bus driver, from ticket stations at both the South and West terminals or from the automatic ticket machines at the bus stances which accept, 'chipped' credit cards. Pre-purchased travel passes covering zones 1 to 4 or 1 to 5 are also accepted for this trip.
Validate your ticket as soon as you board, using the green ticket machine you will see as you enter the coach. There is luggage space onboard but you may have to carry hand luggage on your lap during busy times.
The journey takes around 30mins and you are dropped off just outside Denfert Rochereau train station where you have the option of taking another bus a taxi, the RER train or metro into central Paris.
So now to central Paris or beyond...
Here's how to ride the RER into Paris...
Here's how to ride the Metro into Paris...
Here's how to ride the RER to CDG airport..