The Société de transport de Montréal (STM) operates 220 daytime and 23 night service routes and provides a vast number of routes for the Island of Montreal, serving an average of 1,403,700 passengers on an average weekday as of 2011[update].

The following is a complete list of all the Daytime Regular, Night, Express, and Senior Shuttle STM bus routes.

Monday-Friday (10-249) Modified on August 26, 2024 to provide better service to the Sud-Ouest’s commercial axes and for the École de technologie supérieure (ÉTS) as part of the 2020s major network overhaul.

Serves Cap-Saint-Jacques beach weekdays off-peak before 9 PM and weekends before 9 PM during the summer[v] Became a rush-hour high-frequency line on August 26, 2024 and was extended west, taking riders all the way to CÉGEP André-Laurendeau via the Lapierre overpass.

via | Dorval Some AM rush southbound runs start at Parc Rail Station[bi] Became a rush-hour high frequency line on August 26, 2024 as part of the 2020s major network overhaul.