Be careful, the content can be updated without reloading the page, visit our accessibility section for more information Passer au contenu principal

Sud-Ouest sector


The RTM Sud-Ouest sector provides public transit by bus in the cities of Beauharnois, Châteauguay, Léry et Salaberry-de-Valleyfield, in addition to serving the cities of Coteau-du-Lac, Les Coteaux, Kahnawake and Saint-Zotique.


Schedules and routes
Customer service



To serve you better, a taxibus service is available (booked in advance) to supplement the bus service in areas where buses do not run outside peak hours. A sign in the taxi indicates that it is a taxibus. 

The municipalities of Beauharnois, Châteauguay and Ville de Léry have taxibus service available.

More information (French PDF)



Cycling to work, to school or to discover new places? The Vélo-bus makes your bike trip easier! With a valid travel pass or ticket, you can have your bike carried by the bus, free of charge, to and from the stop of your choice. Buses are equipped with a bike rack for up to two regular, non-motorized bikes. Bikes are not allowed inside the buses. First come, first served! No reservations required. Users must be able to mount and remove their bikes as quickly as possible, without assistance, from the front of the bus or sidewalk. You must be aged 16 or over, or be accompanied by an adult, to use the bike rack. For safety reasons, the bus driver is not allowed to leave their seat to help you. At any time, cyclists may be denied permission to load a bike. The Vélo-bus is offered: 

  • Until 8:30 p.m. from April 15 to May 31
  • Until 9:30 p.m. from June1 to August 31
  • Until 7:30 p.m. from September 1 to October 31

RTM Sud-Ouest is not responsible for bicycle thefts or damages during this service, and reserves the right to change buses in the event of an emergency. Note that there is no guarantee that buses will always be equipped with a bike rack.


You may be entitled to door-to-door public paratransit. This service is provided by Transports Accès inc. You can commute by regular taxi, paratransit or minibus depending on your needs and on the resources available at the time you request the service.


Admission and reservation


Territory served

Transit is available in the following territories:

  • Beauharnois
  • Châteauguay
  • Ville de Léry
  • Mercier


Désolé, cette page n’est pas accessible aux lecteurs d’écran ou à tout autre dispositif d’assistance. En effet, elle contient une carte géographique présentant l’emplacement des terminus et installation intermodales.
No change to our services following new government measures announced January 6, 2021.