Bus Line n°21, real-time schedules by stop
Bus line 21 provides daily service between the stops Stade Charléty – Porte de Gentilly (Paris) and Porte de Saint-Ouen – Hôpital Bichat (Paris).
- Towards Porte de Gentilly, Bus 21 runs from 05:29 to 00:30 Monday to Friday, on Saturdays from 06:30 to 00:30, and on Sundays and public holidays from 07:20 to 00:30.
- Towards Porte de Saint-Ouen, Bus 21 runs from 05:30 to 00:30 Monday to Friday, on Saturdays from 05:50 to 00:30, and on Sundays and public holidays from 06:55 to 00:30.
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What are the bus 21 schedules?
RATP line 21 operates within central Paris, between Porte de Saint-Ouen – Hôpital Bichat and Stade Charléty – Porte de Gentilly. It notably passes through Place de Clichy, Gare Saint-Lazare, Opéra, Châtelet, and Saint-Michel – Saint-Germain. All buses running within the city of Paris provide daily service between 5:45 AM and 12:45 AM (varying from 5:15 AM or 6:30 AM to 12:30 AM or 1:15 AM). Check real-time arrivals to plan your journey with peace of mind.
Real-time schedules not available at the moment? Please consult the traffic information section for more details on traffic conditions and any possible interruptions on bus line 21. Our Bonjour RATP blog also reports ongoing works on the network.
Real-time bus schedules
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.
The bus schedules for the airport
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).
