Paris Travel Planner   Riding RER Trains in Paris, France
Paris's RER trains take a bit of learning. Read this page before you ride an RER train in Paris, and you'll save yourself lots of time and confusion.



Basilique du Sacré-Coeur, Paris, France
Basilique du Sacré-
Coeur
,
Montmartre...





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Riding the RER trains in Paris is different from the Paris Métro. Here's how to ride the RER:

Buying Your Ticket

You can use the superb Bonjour RATP and Île-de-France Mobilités smartphone apps to plan your trips and to buy your tickets; or use a ticket machine or ticket agent at an RER station. An RER ticket is the same as a Métro ticket (but not the same as a bus/tram/funicular ticket.)

Just touch your phone to the turnstile when you enter, and when you exit.

If you have a physical ticket, keep it—you'll need it to exit the system at the end of your journey.

Finding Your Platform

Follow signs such as this to your RER train platform:

RER Line Signs, Paris, France

Reading the Train Schedules

Each RER train has a cryptic, seemingly nonsensical 4-letter code (PIER, KARI, SORI, EFLA, EKLI, etc.) based on the stations it serves. The first letter of the code indicates the train's destination. (For example, all trains with codes beginning in "E" go from central Paris to Aérogare 2 at Charles de Gaulle Airport.)


RER Trains in Paris

Paris Métro

Paris Train Stations (SNCF)

Paris City Buses

Paris Airports

CDG Airport Transport

Orly Airport Transport

Paris Transport

 

 

Detail of RER B train schedule, Paris, France

Above, portion of an RER train schedule. Note the 4-letter codes (PIER, KARI, etc.), and how each train serves a different list of stations. If the train code begins with K (as in KARI), the train is an express from CDG Airport to central Paris. KARI trains depart CDG seven minutes after PIER trains, but arrive at Châtelet- Les-Halles, in the center of Paris, only 3 minutes after PIER because they stop less.





RER Code Sign, Paris, France
Above, cryptic 4-letter train code sign. The "E" means its destination is Aérogare 2 at Charles de Gaulle Airport.

 


RER Monitor, Paris, France

Monitors on the platform display information on delays and cancellations (in French only).

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