RATP 399 bus Stop List and Next Departures
The RATP 399 - Massy-Palaiseau RER - Juvisy RER bus serves 32 bus stops in the Paris Île-de-France area departing from Juvisy RER and ending at Massy - Palaiseau RER. Scroll down to see upcoming 399 bus times at each stop and the next scheduled 399 bus times will be displayed. The full 399 bus schedule as well as real-time departures (if available) can be found in the Transit app.
RATP 399 bus route map
The RATP 399 - Massy-Palaiseau RER - Juvisy RER bus route map is shown above. The route map shows you an overview of all the stops served by the RATP 399 bus to help you plan your trip on RATP. Opening the app will allow you to see more detailed information about the route on a map including stop specific alerts, such as stops that have been closed or moved. You can also see the location of vehicles in real-time on the route map so you know when the 399 bus is approaching your stop.
See the detailed route mapRATP 399 bus Service Alerts
Open the Transit app to see more information about any active disruptions that may impact the 399 bus schedule, such as detours, moved stops, trip cancellations, major delays, or other service changes to the bus route. The Transit app also allows you to subscribe to receive notifications for any service alert issued by RATP so that you can plan your trip around any active or future disruptions.
See all alertsRATP 399 bus Service Frequency
The next 399 bus leaves Juvisy RER at 11:30 PM, and arrives at Massy - Palaiseau RER at 12:14 AM. You can see the frequency of upcoming trips and the exact departure times by opening the Transit app.
See all departuresRATP 399 bus On-Time Performance
54% of riders report that the RATP 399 bus arrived on time on their previous trip. In the past 30 days, 19 riders reported on the on-time performance of the 399 bus. Compared to other RATP lines, the 399 bus is ranked 85 out of 324 RATP lines. These on-time performance stats are user reported and may differ from official RATP metrics. See more details about on time, late or early departure reports for the 399 by opening the Transit app.
See all on-time perfomance details