RTL 421 bus Stop List and Next Departures
The RTL 421 - Grande-Allée / A.-Frappier bus serves 36 bus stops in the Longueuil area departing from 5100 Armand-Frappier and ending at Terminus Longueuil. Scroll down to see upcoming 421 bus times at each stop and the next scheduled 421 bus times will be displayed. The full 421 bus schedule as well as real-time departures can be found in the Transit app.
RTL 421 bus route map
The RTL 421 - Grande-Allée / A.-Frappier bus route map is shown above. The route map shows you an overview of all the stops served by the RTL 421 bus to help you plan your trip on RTL. 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 421 bus is approaching your stop.
See the detailed route mapRTL 421 bus Service Alerts
Open the Transit app to see more information about any active disruptions that may impact the 421 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 RTL so that you can plan your trip around any active or future disruptions.
See all alertsRTL 421 bus Service Frequency
The next 421 bus leaves 5100 Armand-Frappier at 3:23 PM, and arrives at Terminus Longueuil at 4:02 PM. You can see the frequency of upcoming trips and the exact departure times by opening the Transit app.
See all departuresRTL 421 bus On-Time Performance
60 % on time60% of riders report that the RTL 421 bus arrived on time on their previous trip. In the past 30 days, 9 riders reported on the on-time performance of the 421 bus. Compared to other RTL lines, the 421 bus is ranked 47 out of 82 RTL lines. These on-time performance stats are user reported and may differ from official RTL metrics. See more details about on time, late or early departure reports for the 421 by opening the Transit app.
See all on-time performance details