Phone buried in your pocket? 🖥️ Plan a trip on our website instead
MontréalSTM

STM 125 bus

Ontario

80 % on time

STM 125 bus Stop List and Next Departures

The STM 125 - Ontario bus serves 41 bus stops in the Montréal area departing from Station Viau and ending at Station McGill. Scroll down to see upcoming 125 bus times at each stop and the next scheduled 125 bus times will be displayed. The full 125 bus schedule as well as real-time departures can be found in the Transit app.

See more departures
Stops
Tue, May 5, 2026
STM Ontario map

STM 125 bus route map

The STM 125 - Ontario bus route map is shown above. The route map shows you an overview of all the stops served by the STM 125 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 125 bus is approaching your stop.

See the detailed route map

STM 125 bus Service Alerts

Open the Transit app to see more information about any active disruptions that may impact the 125 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.

See all alerts

STM 125 bus Service Frequency

The next 125 bus leaves Station Viau at 5:20 AM, and arrives at Station McGill at 5:56 AM. You can see the frequency of upcoming trips and the exact departure times by opening the Transit app.

See all departures

STM 125 bus On-Time Performance

80 % on time

80% of riders report that the STM 125 bus arrived on time on their previous trip. In the past 30 days, 110 riders reported on the on-time performance of the 125 bus. Compared to other STM lines, the 125 bus is ranked 39 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 125 by opening the Transit app.

See all on-time performance details

STM 125 bus FAQ

  • What time does the next STM 125 bus depart from Station Viau?

    The next 125 bus leaves Station Viau at 5:20 AM, and arrives at Station McGill at 5:56 AM. The total trip time for the next STM 125 bus is 36 min.

  • Is the STM 125 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 125 schedule by downloading the Transit app.

  • When does the next STM 125 bus arrive?

    You can see the next STM 125 bus times in the app as well as future departure times for the 125 bus.

  • How many bus stops are there for the STM 125 bus?

    There are 41 stops on the STM 125 bus.

  • Is the STM 125 bus usually crowded?

    You can find real-time information on STM 125 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 125 bus currently running?

    Find out the current status for the STM 125 bus in the Transit app.

  • What is the closest STM 125 bus stop to me?

    Open the Transit app to see your location on a map and find the closest 125 bus stop to where you are.

Other STM bus schedules, routes and maps

Other transit modes in Montréal area

Never miss the bus again. Download Transit.

Download Transit
or
Plan a trip on our website