Bus Line n°123, real-time schedules by stop

RATP line 123 runs between the stops Porte d’Auteuil and Mairie d’Issy, notably passing through Marcel Sembat station and Issy RER station. The schedules for suburban lines around Paris generally run from about 5:00 AM to 1:00 AM. However, they vary depending on the line and the day. Check the live schedule of bus 123 for more details.

Real-time schedules unavailable? Don’t worry, consult the bus 123 traffic information and the ongoing works updates, or calculate your new route with the Bonjour RATP app.

To move easily around Paris and its surroundings, Bonjour RATP provides real-time schedules for all bus lines. To find the schedule for your bus in Paris, it's very simple. Just enter the bus line you are looking for among the nearly 350 currently in operation.

The first buses in Paris leave at 5:45 AM. The last stop is usually served at 12:45 AM. The timing of the first buses varies significantly depending on the lines, with service starting between 5:15 AM and 6:30 AM and ending between 12:30 AM and 1:15 AM.

In the suburbs, buses serve stops between 5:00 AM and 1:00 AM on average. These schedules are also subject to significant variability depending on the lines, as service starts between 4:24 AM and 5:50 AM and ends between 12:30 AM and 2:00 AM.

Can't find the schedule for your bus? Please note that buses do not operate during part of the night.

You can also check traffic information for updates on disruptions due to strikes or construction work.

Need to catch a flight? You can also check the timetables for line 9517. Buses run on average between 5:20 a.m. and 1:20 a.m., providing access to Roissy Charles de Gaulle Airport, with departures from the stations approximately every 30 minutes:

• Argenteuil Station (Transilien line J),
• Stade de France – Saint-Denis (RER line D),
• La Plaine – Stade de France (RER line B),
• Carrefour Pleyel (Metro line 13),
• Saint-Denis Pleyel (Metro line 14).