RER B trains run every day, including public holidays, from around 05:00 to midnight with departures every 6 to 15 minutes.
ORLYVAL shuttle train operates every day, including public holidays, from 06:00 to 23:35 with departures every 5-7 minutes.
Average journey time between CDG Airport and Orly Airport is 75 minutes.
The single journey fare CDG ↔ Orly costs €21,80.
Paris Visite travelcard (zones 1-5) can be used.
Tickets can be purchased at any Metro-RER stations, airport included, from either ticket booths or ticket vending machines.
To Orly Airport
Go to the railway station, follow the signs RER B, Paris by train.
Please check the platform information display screens, board RER B trains bound to St Rémy lès Chevreuse or Massy Palaiseau (some trains split off for another suburb).
Transfer onto the ORLYVAL at station Antony.
To CDG Airport
Take the ORLYVAL to Antony then transfer onto the RER B.
Please check the platform information display screens, board RER B trains bound to Aéroport Ch. de Gaulle (some trains split off for another suburb).