RER and Transilien Stations

Do you know what « RER » means? The « Réseau Express Régional » (Regional Express Network), created in 1977, lives up to its name. It is the fastest means of transportation to reach the neighboring departments of Paris. The RER consists of 5 lines. The RATP and the SNCF jointly manage the RER A and B. The other lines and the Transilien network are operated solely by the SNCF. There are approximately 250 RER stations, 92 of which are managed by the RATP. In total, with the 5 RER lines, 3 tram-trains, and 8 Transilien train lines, the SNCF serves 399 Transilien stations in Île-de-France.

Paris, the inner suburbs, and the outer suburbs are served by the RER and the Transilien. The trains cross the capital and connect the departments of Île-de-France with each other, from north to south, and from west to east. Some lines operated by the SNCF also serve Transilien stations outside the Île-de-France region. One of the most important stops on the network is located in the center of Paris. The Châtelet-les-Halles RER station is the busiest underground station in the world. It serves the A, B, and D lines.

Find the stations in Paris or Île-de-France using the Bonjour app, which helps you plan your itinerary, and off you go! The 399 RER and Transilien stations in the network are spread throughout Paris and the entire Île-de-France region. The numerous connection stations allow transfers between the network lines to help you reach your destination as quickly as possible.