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MontréalSTM

STM 121 bus

Sauvé / Côte-Vertu

70 % on time

STM 121 bus Stop List and Next Departures

The STM 121 - Sauvé / Côte-Vertu bus serves 52 bus stops in the Montréal area departing from Saint-Michel / Sauvé and ending at Beaulac / Thimens. Scroll down to see upcoming 121 bus times at each stop and the next scheduled 121 bus times will be displayed. The full 121 bus schedule as well as real-time departures can be found in the Transit app.

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Stops
Mon, May 4, 2026
STM Sauvé / Côte-Vertu map

STM 121 bus route map

The STM 121 - Sauvé / Côte-Vertu bus route map is shown above. The route map shows you an overview of all the stops served by the STM 121 bus to help you plan your trip on STM. 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 121 bus is approaching your stop.

See the detailed route map

STM 121 bus Service Alerts

Open the Transit app to see more information about any active disruptions that may impact the 121 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 STM so that you can plan your trip around any active or future disruptions.

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STM 121 bus Service Frequency

The next 121 bus leaves Saint-Michel / Sauvé at 4:14 PM, and arrives at Beaulac / Thimens at 5:15 PM. You can see the frequency of upcoming trips and the exact departure times by opening the Transit app.

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STM 121 bus On-Time Performance

70 % on time

70% of riders report that the STM 121 bus arrived on time on their previous trip. In the past 30 days, 164 riders reported on the on-time performance of the 121 bus. Compared to other STM lines, the 121 bus is ranked 118 out of 215 STM lines. These on-time performance stats are user reported and may differ from official STM metrics. See more details about on time, late or early departure reports for the 121 by opening the Transit app.

See all on-time performance details

STM 121 bus FAQ

  • What time does the next STM 121 bus depart from Saint-Michel / Sauvé?

    The next 121 bus leaves Saint-Michel / Sauvé at 4:14 PM, and arrives at Beaulac / Thimens at 5:15 PM. The total trip time for the next STM 121 bus is 61 min.

  • Is the STM 121 bus running on time, early or late?

    You can track your bus on a map, monitor real-time updates, and see adjustments to the STM 121 schedule by downloading the Transit app.

  • When does the next STM 121 bus arrive?

    You can see the next STM 121 bus times in the app as well as future departure times for the 121 bus.

  • How many bus stops are there for the STM 121 bus?

    There are 52 stops on the STM 121 bus.

  • Is the STM 121 bus usually crowded?

    You can find real-time information on STM 121 bus crowding levels in the Transit app (available in select cities or on select trips). You can also see predictions on how crowded the bus will be when it gets to your bus stop.

  • Is the STM 121 bus currently running?

    Find out the current status for the STM 121 bus in the Transit app.

  • What is the closest STM 121 bus stop to me?

    Open the Transit app to see your location on a map and find the closest 121 bus stop to where you are.

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