Whatever ticket you have, (including travel passes) you insert the ticket into an automatic barrier which, after validating the ticket, allows you through. To access the RER system you will need a ticket of one kind or another. There are different schedules during the weekend than during the working week.Ĭhatelet, Auber and Etoile are the key stations you will interchange with using the Metro or other RER services in the centre of Paris. Trains to Disneyland run at 15 minute intervals between about 5.30am and midnight. Within central Paris you can think of the RER as just another Metro line. If you are travelling within central Paris you can use a single ticket which is valid for RER, Metro and buses. As a result train, metro and bus are tightly integrated, sharing ticketing systems. The Paris RER is run by RATP, (Regie Autonome des Transports Parisiens) who also operate the bus and Metro system.